I have had two bikes which I found in the dumpster (rubbish bin here in Australia).
With some time and elbow grease, and sometimes a little bit of money you can restore a bike which was destined for the dump into something that is fast and fun to ride around.
This instructible shows you how to restore a dumpster bike - in this case a 10-speed road/touring bike. These bikes are commonly thrown out, can be converted into a single speed or easily renovated into a working bike.
I have concentrated mainly on providing the resources and hints, rather than the in-depth detail for each section of the bike. The reason for this is that no two bikes are the same and if I go into too much detail for one part (eg. the headset).
Step 1: Getting Started
Old bikes that no-one wants are plentiful. They can be left out with the hard rubbish, or people cleaning out thier shed, garage sales or antique / bric-a-brac shops. You may be able to barter for a friend's old bike eg. offer to mow their lawn or babysit.
Decide your reasons for doing this project.
This will save you a lot of time and/or heartache in the long run. Some questions to ask yourself:
Why this bike? Check that the bike you have obtained matches up with how you will ride it. The frame size should fit you comfortably, and the style of bike and your use should be well matched. That being said, I have seen a beach cruiser been ridden in a triathlon before! Lots of people restore these bikes so that they have a cheap commuter that is not likely to get stolen compared to their snazzy carbon tri bike for the weekend. It may be your grandpa's old Cro-Mo racer which you want to restore as a moving heirloom.
What are my constraints? You may be pushed for time / space / money. If you would prefer your leisure time spent riding, then you may be better off buying a new bike. It may be more fun to give the bike to someone once you have finished if you are short on space at home.
What is my budget? Another important question. For a clunky commuter bike, you may just want to clean it up and spray it to protect it from rust. For a vintage pista or road racer, it might be worth spending a little money for a comfortable saddle, clip in pedals and bar grips. The money may be better spent on a new bike!
What is the condition of the bike? This is really important. Check the bike to see that it is in repairable condition. Look for things like cracks in the frame, broken spokes / misaligned wheel rims, dull sound when you hit the frame (structural rust) missing cogs on the derailleur, bent forks, seized crank or headset. All of these things can be fixed, but it may be uneconomical to repair them and the bike just won't be the same as if you waited to pour your energy into a dumpster bike that was a little less 'loved'.
Ok, so you have the bike, you have the money and the vision to complete the project. Let's get started!
Step 2: Resources
Here is a description of the parts of a bike, ie what everything is called.
Some of the books are great, and they assist with the differences in detail between different bikes. Some examples are the bottom bracket, headset and derailleurs which vary from manufacturer to manufacturer, bike to bike and with the ebb and flow of technology.
If I could recommend you do these five things, you will be happy and in front with your bicyle project.
1. Read instructibles. There are some great bike repair and detailed instructions treasured within.
2. Read "the little blue book of bicyle repair" avilable for $17 from certain online bookstores.
3. Read "zinn and the art of road bike maintenance" yours for a fiver from certain online bookstores..
4. Go to a bicycle club, swap meet or maintenance class. These are often free and people are there who are mostly happy to help.
5. Get to know your local bike shop owner or mechanic.
Step 3: Tools and Equipment
- bicycle repair and maintenance kit. Should contain a chain whip, cone wrenches, pedal wrench, crank puller, a big *** shifter for headsets and the like. Other tools are useful like a spoke wrench, tire levers etc.
- spanners - spanner set is useful
- cable cutters - useful for cutting brake and gear cables on a bike
- file - filiing off metal ends etc.
- pliers - needle nose and solid are good.
- screwdrivers - stubby and long for leverage are good.
- allen keys - useful for adjusting derailleurs, gear cables, brakes etc.
- hammer - good for a bit of extra leverage (last resort)
- RP7/WD40. This stuff is useful for getting rusted parts moving. Don't be afraid to spray it, come back the next day spray and try again.
- Steel wool - for removing dimples in a steel frame
- Wet and Dry sandpaper for sanding smooth a steel frame. Various grades from 40 to 1200 are good.
- Steel brush - see rust, removal
- grease in a tube - general purpose bike grease from a bike shop is great and will set you back $5-10.
- paint stripper - toxic fumes and nasty burns can come of this stuff. Make sure you are protected and read the instructions.
- safety gear - make sure you have got good gloves, eye protection and hearing protection. safety first.
- painter's tape - for masking off various sections of the bike prior to spraying
- rattle can paint spray cans- choose hard wearing paint like high-temp engine paint and grey primer.
- kerosene - buy the non-smelly stuff you will feel better. It is useful for degreasing. Pop the old crappy part in the kerosene and three days later it will be like new.
- replacement perished items - for an old bike this usually means a set of tires and tubes, bar tape / grip tape, and gear and brake cables, sometimes a saddle. Keep your eye out on places like craigslist and ebay for some specials if you can wait and are on a budget.
Step 4: Strip Down
A notebook is useful here, you can draw pictures of which piece goes where and keep a tally of all the bits.
To help remove parts, use WD40/RP7 spray - apply liberally to any stuck parts. Use your big spanner or shifter and a big wooden slab to 'budge' any stuck parts. Don't be afraid to repeat the spray-budge-spray-budge process over the course of three or four days. Eventually it will come loose. The pedals on this example bike took three days to come loose but eventually loosened off.
Once you have loosened and counted the parts, put them in an individual tray with some kerosene. A toothbrush is useful here to brush off any grime. Don't use the toothbrush again :)
Here are some specifics for an old ten-speed bike:
(this is the set of stuff that attaches the fork and handlebar assembly to the frame. When you steer you use this).
Use the big shifter and RP7 to loosen the threaded nut. Use an allen key in the neck of the headset stem to loosen the wedge in the headset tube. remove the bearings and take note of the alignment / orientation of the bearings. Clean up the parts.
(This is the set of stuff which allows your pedals to go round in the frame)
Remove the pedals. This is often tricky. For some reason people overtighten the pedals into the crank. Once you have removed the pedals, use the crank puller tool in your toolkit to remove the crank arms (see the detail in the photo). Use the cone wrenches to loosen the nuts around the bottom bracket. Note the orientation of the bearings and nuts in the bottom bracket for later. Clean up the parts.
Wheels and wheel Bearings:
Remove the wheels (and tires), chain and the derailleurs from the frame. Wash up the small parts in the kerosene bath. Clean the spokes with aluminium foil by rubbing the foil against the spokes. This cleans them up really well. Use the cone wrenches to remove the nuts in each wheel - BE REALLY CAREFUL! the ball bearings will fall out so use a cloth or paper to catch them as you undo the nuts. Put all of the parts in a seperate kerosene container.
Make a note of the gear and brake cables with your notepaper. remove the cables and keep them for later to provide a reference length for the new cables. Remove all of the bar tape from the handlebars and wipe all of the tape glue off with kerosene.
By now your bike will look like a frame, fork and a whole lot of bits! don't trip over them...
Step 5: Prepare the Frame
Many vintage bikes will have a steel frame. Old bikes will most likely have a rusty frame.
This slide will show you how to prep the frame to remove all of the rust and get the frame ready for painting.
1. Safety Gear. Don your gloves, eye protection and long sleeves to avoid any paint stripper burns.
2. Paint stripper. paint the frame with paint stripper, wait a couple of hours then scrape it off.
3. Rust removal. Use a wire brush to remove the large rust spots.
4. Surface finish. Use the wet&dry sandpaper starting with 80-grit then working down to 1200-grit paper. remove the surface irregularities and rust etc. until the frame looks shiny and smooth.
This step is an absolute pain. It will take you four to five hours at a minimum and it may be better to spend a little more and get someone to sandblast and powdercoat the frame.
Step 6: Paint or Powdercoat the Frame
Sandblast and powdercoat can cost you as little as $70 and worth considering in your budget.
If you decide to paint your frame, then ooop.. here it is!
Prepare the frame by laying down lots of paper, and filling the bearing entrances with newspaper (eg bottom bearing, headset, set tube)
Grab the rattle can with primer and shake. Spray in short stripes, make sure you don't spray too long so that it drips. FOr a good finish spray at least 4 coats of primer, waiting an hour or so between coats. Clean up any drips with 240-grit sandpaper. Don't forget to turn the can upside down and spray the rest out to clear the nozzle when finished for each coat.
Then grab the colour coat and spray a number of coats.
Step 7: Re-assemble and Check (1)
Using your notes and the books, one by one start re-assembling the parts and re-lubing them with grease.
Trial and error is ok with this step. Some suggestions:
Start with the headset, it is easiest.
Next add in the bottom bracket bearing, followed by the chainring and cranks.
Follow on with the back wheel, cassette and chain. Then the front wheel, handlebar and finally the derailleurs and gear cables.
Step 8: Re-assemble and Check (2)
For the brakes, fit the hoods and run the cables back to the brakes.
Fit the new handlebar tape by starting at the bar ends and keep the tension on the tape.
Make sure the hoods are attached tightly to the handlebars as you will be putting some weight on them when you ride.
Step 9: Tune Up and Test Ride
One of the important things to do is a couple of laps of a safe track while you test the bike out. When I first test rode my restored bike the axle had slipped in the frame and it was really slow after a lap or two!
Check and correct all parts of the bike before you start riding on the street or at speed. Some examples are the chain, the brakes, gear shift and wheel alignment.
Step 10: Add the Finishing Touches
Decals are cheap on ebay, and new saddles and bar tape don't cost a lot, especially if you are a patient buyer.
Other options include use of fluoro paint, spoke lights, cards in the spokes or streamers in the wheels.
The sky is the limit!