rebuilding a Shimano 7 speed shifter?

I have  a hard rock bicycle with a Shimano 7 speed rear axle and a Shimano three speed front sprocket.  Neither shifter will work.  Is there a way to fix these?

Question by jay oliver 8 years ago  |  last reply 7 years ago


Bioshock bicycle

I want to make a boishock themed bicycle. Any thoughts?

Topic by buspuppie 10 years ago  |  last reply 10 years ago


bicycle mods

Saw bicycle cart mod,interesting idea.how do i put two wheels on the front of my bike?

Topic by mr.a.rice 7 years ago  |  last reply 6 years ago


Chainless Bicycle!!

There's a great post over at POPSCI about an awesome chainless bicycle! It uses an innovative wire and pulley system. No more pants caught in the chain??  Way to go Hungary!  Read more at POPSCI

Topic by Culturespy 8 years ago  |  last reply 8 years ago


Galileo Bicycle

Please help; I have tried twice but without success to download the instructions for the Galileo bicycle from https://www.instructables.com/id/Build-Galileos-Bicycle/?download=pdf - what is wrong? The download just stops on its own after about ten minutes and without any indication that anything was downloaded.

Topic by takhaar 8 years ago  |  last reply 8 years ago


Skeleton Bicycle

This skeleton bicycle by Jud Turner looks like the result of an archaeological dig from TRON world. OK, it's not meant to be ridden, but quite bizarre and fun on its own. Link via gizmodo

Topic by fungus amungus 10 years ago  |  last reply 10 years ago


bicycle generator

Has anyone ever tried to build a generator that would fit inside the bottom bracket of a bicycle using the spindle thats attached to the cranks and pedals? seems it would work better than the ones that rub on the tires.

Topic by oldcrowrich 11 years ago  |  last reply 11 years ago


Bicycle LEDs

Hi Everybody, I have made a series of LED lights on my bicycle spokes, for driving at night. I use a 9 volt battery with 9 pieces of white LED 3.3 volts, which I connect each with a 330 ohm resistor 9 pieces 1/4 watt. its durability is approximately 30 hours later the lights dimmed, is there any way to be more durable ?

Question by pro5200 7 years ago  |  last reply 7 years ago


electric bicycle

Ok, i wanna take a old bike and put an electric motor on it, with a solar charged battery. what i wanna know is, what are my options on motors if i wanna use recycled components? can i use a motor from a; washer, dryer, blower fan, ect? i would like to be able to have something i can get around town with(not assisted)

Topic by golddigger1559 7 years ago  |  last reply 7 years ago


Bicycle Trailer

Hi everyone I am going to start buildin a cycle (bike) trailer but is there a law what says it can't be bigger then.......? Please? Thank you  :-)  From Kris in England 

Topic by prison.whittaker 4 years ago  |  last reply 4 years ago


Bicycle Mudguard

Hello there, people. First post here, been a member for a long time but only used to read instructables, but now im in need of help with a project. Im making a mudguard for my bicycle and im using a plastic folder. I know it sounds a little strange, but ive seen a lot of tutorials for mudguards made from some type of plastic, soft or hard. For example the ones made from a plastic cutting board. The first photo is of the folder and my question to you guys is, how do i make creases on the folder like the ones shown in picture 2. creases that help you fold the folder in those certain places.

Topic by OG-Jay 3 years ago  |  last reply 3 years ago


Bicycle Names

I name my bikes, usually for something wrong with them. Rusty, well, obvious. Lefty, it pulls to the left. Tiny, well, it's tiny. Some have more thoughtful names, like Phoenix, a bike I found in a ditch that was apparently thrown from a moving pickup. The fourth definition of the word Phoenix at this dictionary is a person or thing that has become renewed or restored after suffering calamity or apparent annihilation. Do you name your bikes?

Topic by extremegtafan 10 years ago  |  last reply 9 years ago


bicycle questions? Answered

I am  five feet two inches yes I know I am short... But I was wondering if I can ride a bike with a wheel size of 26in sorry my question mark key isnt working so thanks in advance!!

Question by camping crazy 5 years ago  |  last reply 5 years ago


Bicycle Speedometer

With my customization of my bike, I just have to have a speedometer. But, I haven't found a single place on the Internet showing how to make one, just how to buy one.I know that speed = distance/time. I was thinking, since this is going on my bike, I could measure the circumference of the rim and hook up a circuit that would have a something (motion detector?) on the front brakes and another something on the rim, the one on the brakes counting the number of RPMs. I could have it hooked up to a timer, and it would have a digital read-out, which would calculate the speed, that updates every certain number of RPMs.Has anyone ever built a speedometer, or if not, do you think something like that would work?Thanks!

Topic by Bran 11 years ago  |  last reply 8 years ago


bicycle + motor

I want ot make a moped, but theres NO WAY im buying those expensive mofo, kits for $200 when i could just as easily build one, i figure all it needs is a motor of 50cc or less(state law says)i figure, a weed wacker is usually ranged from 20CC to 50cc ill try that but so far the most i have found is 32cc, i also figure it will require a chain and a drive train which i can fabricate from another bike. i hear chainsaws are very powerful like 40CC + range which sounds good but im just not sure about de-constructing one of those, if anybody has had any experience with motor bicycle please help

Topic by Rotten 11 years ago  |  last reply 11 years ago


Bicycle Music

I ride in the San Jose Bike Party.  One of the things that I like is the music. People with all sorts of boom boxes, dj systems, and lighting mounted all over their bikes or trailers.  I would like to build something like that and I am checking out the many interesting projects listed here.  I am wondering though, is it possible to speed the music up or down to match the bike speed, maybe with a magnet on the wheel and a sensor on the frame?  I don't know if it would be a good idea, but the thought of a dirge when we are slow and chipmunks when we are fast is just funny to me.

Topic by moleman 9 years ago  |  last reply 9 years ago


Cardboard Bicycle

At the moment, it's just a design student's prototype, but I think this ridable cardboard bike has real legs, er, wheels.Built from a single sheet of industrial-strength hexacomb card, the frame should cost as little as 3GBP ($6), and the tiny proportion of metal parts means the bike has a projected selling price of 15GBP (about $30). For that, you get a bike that will survive about 6 months of daily commuting, or a lifetime of the kind of riding most people do.The designer, 21 year-old Phil Bridge, predicts the design will cut bike crime by simply being too cheap to be worth pinching (currently, a bike is stolen and abandoned every 71 seconds in the UK). It also provides an opportunity for sponsorship:"The idea was that it would be a sponsorship from a company who would produce these and get some advertising it. And once you've used it, you'd return it they'd give you another one, they'd take all the metal components out and put them into a new frame and the old frame would go back to the manufacturer."BBC Manchester articleBBC South Yorkshire article

Topic by Kiteman 10 years ago  |  last reply 10 years ago


Bicycle security!

Hey hey, so the other day i came up with a way that i thought might work well for a bicycle security...thing. anyways, since just about all bikes are made of metal, except the carbon ones, and metal conducts electricity, what if you had some way of making your bike, electrically charged? i guess (i dont know all the proper words heh) so if a person comes up to your bike and wants to take it, at some point in the process of taking your bike, he would come in contact with some metal part and get shocked. i thought if you made it properly, and made the shock strong enough, it would be a great way to keep your bike safe...cause i know if i went to take someones bike, and all of a sudden i get zapped all of a sudden every time i touch the bike, i would not want that bike! i figured you'd need some batteries with enough voltage to give him a good shock, enough to make him not want to take the bike, but not so much that you would kill him...that obviously would not be good.  but i'd imagine that more powerful batteries might be to big, and not fit anywhere on your bike. i thought that maybe you could hide everything in the seat tube after you take the seat post out, and maybe have a hidden switch somewhere on the bike so you could turn it off. im sure there's more issues i havent thought over, just an idea, and im far from an electrical expert, so i dont know how rubber shoes might ground the person, or how you would go about wiring it, and other stuff like that. i just wanted to see what some people here thought about it, and if it is even possible for me to do

Topic by sirshmoopy 8 years ago  |  last reply 8 years ago


Does anyone know where I can find plans for a bicycle powered washing machine?

I've seen old pictures of the contraptions at work but need detailed plans on the gearing, inside of the barrel, and the basin in which it sits. I volunteer at a site where we don't have the standard washer/dryer hookups and if I could get and make this, it would save us a couple of hundred dollars in laundry bills. Also plans for a decent water filter to separate the dirty, soapy junk in the water so I could send the filtered water down the storm drain would be great.

Question by javajunkie1976 7 years ago  |  last reply 7 years ago


How can i put an engine starter on my bike help!!

I have an engine starter from a car i bought off of ebay it was 15 dollars the owner claimed its 150cc. i rly dont care how much it is, i just want to put it on my bike, but i have no idea how i can change the belt drive from the motor to chain drive for my bike any suggestions?

Question by rubberman7 7 years ago  |  last reply 7 years ago


A fee to license Bicycles?

Last week, James Vesely, the editorial page editor at The Seattle times, Proposed the idea to Impose a license fee on bicycles, more here What do YOU think?

Topic by koolaidslammer 10 years ago  |  last reply 9 years ago


Bicycle trailer bed?

Has any one seen a Bicycle trailer that turns in to a sleeping trailer. and yes I have looked on the web I'm looking to build one.

Question by the pvc bike guy 9 years ago  |  last reply 6 years ago


epoxy bicycle lugs?

Has anyone tried epoxing steel lugs to make a bicycle frame? if so what type epoxy? thanks

Question by lugman 9 years ago  |  last reply 9 years ago


Bicycle Rap - Performance

I saw this on youtube yesterday, and it had me crackin' up!A rap song about bikes, and how performance is the name of the game.

Topic by StumpChunkman 9 years ago  |  last reply 9 years ago


electric bicycle motor?

Okay, Im thinking of turning my bicycle (a "Quasar Bounty") into an electric bike.  it already weighs about 30-40 lbs. And I want it to go at least 30mph. Can someone please suggest a motor I can use, and what battery I should use? Thanks, Michael McPherson (mmcpherson4)

Question by mmcpherson4 9 years ago  |  last reply 8 years ago


Old bicycle needed

I am looking for an old bicycle for a project I am working on. Preferably fixed gear, but I would take multi-speed also. I am planning to make a unicycle that would be better for commuting. The one I have now is only a 20 inch wheel and I am looking for anything bigger than that, maybe 24 or 26. Let me know if you are interested in contributing a bicycle to my project. Thanks.

Topic by rschack 6 years ago  |  last reply 5 years ago


Swiss Army Bicycle

I watched this last night, having recorded it a few days ago. Anybody else notice an instructable hiding on the bike?  In the full episode, you get to see it in action, along with the drill and grinding wheel, all separately powered by the rider.

Topic by Kiteman 7 years ago  |  last reply 7 years ago


Key Fob for a Bicycle

Hello all! I'm going to be shopping for a bicycle here in a week or two, and based on a conversation I had with someone I'd like to know if anyone has done this, or if it's even possible: Making a key fob for a bicycle. Even though having a locking mechanism on a bike itself is a dumb idea I'd just like it for kicks. Y'know, after I've chained up my bike somewhere outside a store, turn around and "lock" it like a car as I'm walking away. Seems possible, but I just don't know how to go about this. Anyone have any ideas? Thanks for your time and effort!

Topic by Energyzed 7 years ago  |  last reply 7 years ago


Removing Bicycle Decals

Does anyone know of a good way to remove the decals from a bicycle, specifically a Mongoose Montana? On the Interweb, a lot of people say you can, but just as many others say that doing so will ruin the paint and mess up the clearcoat that is applied over the decals. Is there a way to tell if my bike has a clearcoat above the decals? If I can remove them, would heating them with a hairdryer aid the removal process? And the sticky residue - what's the best thing to get rid of it? Lighter fluid? Thanks!

Topic by Bran 11 years ago  |  last reply 8 years ago


Monsterbike is a serious bicycle

This video from YouTube user wautur shows off the Monsterbike, a brutal penny-farthing with what looks like a tractor wheel in front. According to his profile, wautur is in the Netherlands, but there's no other info on this one, sadly. Skip to 1:30 to see the bike in action. Related: Crush All Those Who Stand Before You, The Environmentally Friendly Way. via treehugger

Topic by fungus amungus 8 years ago  |  last reply 8 years ago


Bicycle-generated Power

I want to make an attachment for my bike that generates and stores power when I ride it. I'm thinking of using and old car's alternator, but I don't know much about electricity, so I'm asking for help. Also, how can I store the power? In a battery? I'm planning on hooking up a plug outlet, which might be removable to save space. Thanks!

Topic by jaredsalzano 10 years ago  |  last reply 10 years ago


Million Dollar Bicycle

For a million dollars you can get a bike with the lowest air resistance in the world and hopefully get a better shot at the Olympics. That's what bike manufacturer Koga is claiming for this custom ride designed for Dutch rider Theo Bos. Oddly enough, they make the claim that since it has only one speed and no brakes it is one of the most difficult bikes to ride. Whatever. That style of bike is called a track bike and if you're in a city you've likely seen people riding them around. It's not that tough. Link

Topic by fungus amungus 10 years ago


motorised motorized bicycle?

Im looking to make a gas/petrol push bike i have access to all tools exempt welder i have multiple weed eater engines and money is not a problem i am 18 and looking to put a motor on a 12inch bicycle i would pefer chain drive so a gear ratio? i would pefer it to go fast and be rear weel drive the motors dont have a clutch i have seen the one here but there friction drive somone help me out? thanks in advance

Question by 9 years ago  |  last reply 7 years ago


WHEELCHAIR POWERED BY A BICYCLE

I'm looking for some help in constructing a portable mechanism to attach to a manual wheelchair and to the front of a bicycle while still using the wheelchair handles to manouvre the wheelchair.  The front wheel would have to be removed in order to utilize the wheel chair handles to steer.  This attachment would be for two elderly people able to get out but not able to walk far.  Using this converted mode of transportation would make life so much easier.  The wheel chair is presently folded in the trunk of a car and the bike could be attached onto a bick rack for sightseeing purposes.  Any ideas out there?? Thank you,

Question by huot 9 years ago  |  last reply 3 years ago


Bicycle iPod dock

So here's my idea: I'm restoring an old bike and there's a spot for a fake gas tank to go. I will build this tank, but one side will open up and hold within it an iPod dock. At least, I'd like it to.  I'm thinking of using the pedals as a dynamo crank which would power the iPod and play music through speakers mounted on the handlebars. I've been doing a lot of research and it seems possible, however, I've not done something like this before and I was wondering if anyone would have any pointers on how to make this work well. P.S. A separate USB port would be cool as well, so that a phone could be charged while riding the bike.  Thanks for your suggestions!

Topic by SamSkellington 7 years ago


Frictionless generator for a bicycle? Answered

 Right now I have a 12 volt 5 amp Werker lead acid battery powering lights, cell chargers, gps, and a few other gadgets.  When I go on long trips I take the batter charger with me to charge the battery with a wall charger.  The wall charger is heavy and unnecessary if i could find a way to harness the power I generate when I pedal.   i have seen plenty of generators which generate electricity by physically touching a dynamo to the tire but there must be a way to do it inductively, with no friction.  What if I covered the wheel with hard drive magnets and ran them all past a coil on the frame?  I know magnets going past coils will make electricity but not about rectifiers and capacitors and etc.  How could I make this? Thank you

Question by Noblenutria 9 years ago  |  last reply 9 years ago


Magnetically Propelled Bicycle

I was told that I should make a forum topic out of this. So here it is:Here is a link to my upublished instructable:Magnetically Propelled BicycleI came up with this two weeks ago while I was day dreaming about levitation and magnets.The idea is that one stationary magnet set up on the middle of a bicycle negative facing front, can push two magnets bolted together, each facing negative, with an axle running through them and wheels on opposite sides. So when the stationary magnet'ss power is increased, the two magnets in front will be pushed, thus rotating the axle where the wheels are attached, adn obviously the wheels are turned.I say "when the power is increased" because hopefully an electro magnet can be used. I am not sure, but I think an electromagnet can be hooked up to a car battery, and then with some control device, more electricity can be sent to the magnet, possibly increasing the power ( I don't know much about this stuff so help me out here.Look at the schematics for all of the anatomy.I have not figured the turning system out completely, in the intro picture you may see that the turning wheel is connected to the rear by a bar ( In the way I believe it may work there will be two bars side by side, I can't really explain it yet). That is how I plan the turning to the controlled.If you have any ideas for this project, add a comment. I have not made this yet and am still creating it.Please, do not steal my idea, I am only 14 and just started inventing. I have no idea how the patenting system works and I do not have the money for it.I would also like to know more about electromagnets, how they work and where to buy them. I saw one site where the best electromagnet can "pull" like 1300 pounds, so this thing should go pretty fast if it is built properly. I reallly want to know if it is possible for electromagnets to push, that is the whole Idea for this. But if they can't, I've already drawn a simple schematic for pulling the wheels which is on the next page.I also want to add that the stationary magnet cannot be level with the rotating magnets, it will have to be a little above, and if you add a mechanism where the stationary magnet can move up and down, you can control the bike forwards and backwards.Hopefully, no one has a patent on this ( I've searched and haven't found one). And hopefully this will replace fossil fuel vehicles, although I doubt the government will allow that. THE WHEELS/ROTATING MAGNET IS NOT ATTACHED TO THE BICYCLE. IT IS ONLY CONNECTED BY AN AXLE RUNNING THROUGH IT. JUST LIKE A BICYCLE OR A CAR. Here is a link to what I was sorta thinking:Here Just turn it horizontally and add wheels to the ends. The gyro- thingy is like the rotating magnet and the base is like the stationary magnet.

Topic by Alphaviking 12 years ago  |  last reply 11 years ago


What?? An awesome inner tube contest!

We have an incredibly cool contest launching Monday with awesome reused innertube prizes provided by Alchemy Goods!  All you need to do is submit an Instructable using bicycle inner tubes. It can be just about anything as long as you've got some part of a reused bicycle inner tube in there. Check out the Alchemy Goods website for inspiration, and we'll have the exact prizes up with the contest info.  http://alchemygoods.com/ I know I've been waiting on this one for a while now! So, gather up your inner tubes and get your thinking caps on!  This is open to international entries! 

Topic by Culturespy 8 years ago  |  last reply 8 years ago


I HAVE A 60'S MODEL SCWINN VARSITY THAT IM FIXING UP

I HAVE A 60'S MODEL SCWINN VARSITY THAT IM FIXING UP AND WAS WONDERING IF ANYONE COULD TELL ME IF I CAN PUT 700C TIRES AND RIMS ON IT AND WHT ACTUAL SIZE?

Question by refurbishedbikes 10 years ago  |  last reply 10 years ago


bicycle, bicycle trailer, pram and fortunate events...yay...

I will try and get some photos but alas, I have only a web camera. We had a German guy live with us for a 14 months and he left me his bicycle, and for NZ$50 which was great it has 30 gears, he left us 2 months ago. I picked up a pram and a little thing like a hamper trolley with no basket on it from a rubbish pile during an inorganic rubbish collection and the pram had single hooked handles. I picked up some galvanized tubing from a rubbish bin...I asked the worksite foreman could I look through the rubbish bin 9 moonths ago...I think thieves dump stuff in worksite rubbish bins...um, I came to Instructibles after browsing computer forums for 4 years...yay, I am here...and I saw the articles about the bicycle trailers and realized I had a bicycle. I can add so put 2 and 2 together and came up with 1 1/2 so went to work and built a bicycle trailer. It took me 2 hours maybe 3 and it works great. I am so pleased, I have an idea to offer computer and computer peripherial cleaning as a local service and the bicycle trailer may come in hady for pickups and deliverys and I have already practiced using the trailer to transport repaired LCD monitors to the PostShop after I repaired them, and how lucky I was for to get them repaired, phew...I am so happy...and...Jesus loves me...or from what I remember of Him he loves me...

Topic by NickEloFun_1 9 years ago


Tidbits of Olympic Proportions

Tetranitrate's Japanese adventures are not the only exciting happenings in the region: on Friday (08/08/08), the 2008 Summer Olympics began in Beijing, China.Despite concerns about air quality for the games and preparations, these games showcase some very cool designs, cultural aspects, and other miscellany that we would otherwise not have seen. The two featured buildings to check out are the National Aquatics Center and the National Stadium, more commonly referred to as the Water Cube and the Bird's Nest. They are very interesting buildings, and architecturally stunning as well.For the bike enthusiasts out there, Make Magazine posted this album of bicycles in Beijing.And some digital enhancement: China apparently wasn't happy with the fireworks display, so they added some CGI fireworks for television viewers. Link via Boing Boing Gadgets.If you find more cool things related to the Olympics, please share!

Topic by joshf 10 years ago  |  last reply 10 years ago


"Within Reach" Movie needs your help!

The Instructables community being what it is, I'm certain you'll find value in this project, and want to lend a hand. The couple making the film are fantastic people I'm pleased to count among my friends, and I'm completely amazed at the level of personal commitment they've demonstrated in making this documentary. Here is a quote from their Kickstarter page.  Within Reach Movie documents a pedal-powered search for a place to call home in a sustainable community. Mandy and Ryan traded in their house and cars for a tent and bicycles to "bike-pack" 6,500 around the USA to visit 100 sustainable communities, looking around as they looked within. This journey and film has answers to the questions many of us are wondering: "Is it possible for all of us to live in a sustainable way?”, “what would the world look like if each of us simply did what we loved?” After circling the country, and talking with over 20,000 people they have found that not only is it possible but this is already underway.  Here is the trailer so you can check it out! 

Topic by Culturespy 8 years ago  |  last reply 8 years ago


how to make a sidecar for bicycle? Answered

Question by papafire 10 years ago  |  last reply 8 years ago


Building a recumbent bicycle frame?

I want to build my own recumbent two wheel bicycle. Where can I get frame parts at reasonable prices. I live in Northern Ireland. Thanksl

Question by hughgo 10 years ago  |  last reply 10 years ago


Is it illegal to use bicycle trailers?

Right, so I want to build a bicycle trailer that will carry a kayak and also is used for something else, but that's for an iBle, and not the point. As we all know, bicycles are considered vehicles in all 50 states. But, trailers that are pulled by motor vehicles have to have registration and tags. Is it so with bicycles? I don't want to break any laws, so if anyone has an answer, I'd appreciate it!

Topic by Bran 10 years ago  |  last reply 1 year ago


Bicycle accident is the frame okay? Answered

I struck basically struck a curb (an unmarked road island really) going 17 mph roughly and blew out my front rim. I broke a collar bone because of the accident. Anyways I was wondering if the frame is okay I looked at it and there was no visible cracks anywhere. Its a cheap Schwinn frame and it got me wondering if it would be safe to put a new rim on and go. BTW this is a gas powered motorized bicycle not the cheap ones as shown BEFORE the crash. 

Question by Ghost Wolf 4 years ago  |  last reply 4 years ago


grid tied bicycle generator

2 questions about grid tied bicycle generators: 1/ will they feed into the grid if voltage is lower than the grid voltage? 2/ could you connect several bikes to one inverter to feed into the grid? thanks?

Question by gouldy 9 years ago  |  last reply 7 years ago


How to redirect Bicycle chain?

I'm working on a [secret] project that involves a recumbent bicycle. I'm going to have to use a long, tandem bike chain. The problem is, the pedals are going to be mounted at approximately a 32-43 degree angle to the rear axle, with an obstruction (me and my seat) in the way. Is there a way to some how redirect the chain, so that it would go under me? Thanks!

Topic by Bran 11 years ago  |  last reply 11 years ago


re-spoke bicycle wheels

When I was much younger, I re-spoked two bicycle wheels off-center and put them on a bicycle for a parade. I don't recall how I did this except it wa s an article in pop. mech. or pop. science magazine, or similar mag. I do remember that I used 24" wheels on a 26" frame and that they must have been less than 2" off-center to fit the frame. It was fairly easy to ride at slow speeds, but terribly hard to go fast, as it would tend to throw you off. It was a lot of fun, though. I hope someone can tell me how to build one of these again. Thank you for any and all help !

Topic by uncle 11 years ago  |  last reply 11 years ago


how to lenghten bicycle frame? Answered

The frame of my bike is too short for me so my back seriously hurts especially up slopes. is it because the frame is too short or the handlebar is too low? if i reposition the saddle backwards, the cycling is a bit better but not a lot. next idea is: i have is to buy longer stem 2nd idea is to buy saddle support (pipe) that is bended backwards.

Question by Karletto555 9 years ago  |  last reply 9 years ago