Lacing Bike Wheel : 36 Holes Hub to 32 Holes Rim


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Just an ordinary person who loves #thinking and #tinkering

Do you buy a mismatch hub and rim of a bike wheel? I just did. I never noticed that the new Shimano hub I ordered has 36 holes. If only that store had a pair of rims available, it would have been easier to lace the wheels. Then I ordered a new pair of rims from separate store. I am new to bike's parts and technology. I do carefully count the spokes on my old wheel and yes I ordered 32 holes 26" rims. When both parts arrived, it felt like doomed.

Searching around the web gave me no workaround. I read that there are many out there, and the senior/pro keep telling us to get a new pair of rims. This is not working for us who live in a small town where local bike stores do not sell fancy rims.

Then I give it a try by myself, building my first pair of wheel. Not bad. For those who have the same problem you can give this a try.Some said we need some spokes with different length, but I would say that you need not if you have a double wall rims. Some spokes do pop out about few millimeters from the nipples but I would say no worry for they are still under the second wall of the rim.

I adopted a new method, similar to "three cross pattern" but differ from the conventional wheel building method found on the web. You need "the working sheet" above to follow this instructable easier and clearly, print it out if possible. It will help you lacing the wheel easier.

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Step 1: Preparation

  • Rim (32 holes).
  • Hub (36 holes, 18 holes at each flange).
  • 32 pieces of spokes.
  • 32 pieces of nipples.
  • Few foam boards from refrigerator or tv set will help reducing scratches on the floor and rim.
  • A flat head screwdriver.

Place the hub in the middle and the rim around it. I start with the non-driving side up (the left side of wheel). I will use the terms Inside-out spoke that is coming from the inside of the hub flange and the vice versa Outside-in spoke where you can differ them from the picture above.

Step 2: Initial Spoke and the Red Spokes

I use the color code "red spokes" regarding to my working sheet. Find the valve hole for it is our guide for the initial spoke. The holes on the rim are slightly offset, if you look at them carefully. You can see that they are slightly up or down alternately.

First we are working with all the outside-in spokes. Put your first spoke in one hole of the hub then go through the hole on the rim that is slightly up (either on the left or right of valve hole, it is on the left in my case). Then put the nipple on the spoke to lock it on the rim. Five or six turns on the nipple is good.

Then go on with all the red spokes namely on hole 4, 6, 8, 10, 13, 15, 17 on the hub counting clockwise. On the hub flange we leave 2 holes between 1-4 and 10-13. On the rim, we leave 3 holes in between two spokes.

For easier to read on my working sheet, I mark the number on flange with colors. If a number has two colors it means one color is put on top flange and the other is put on the lower flange.

Step 3: The Blue Spokes

Flip the wheel over so that the driving side facing up. Locate your hole #1 and counting clockwise we get the hole #2 on the left. We are building based on our working sheet, the colors, the numbers on hub. We are still working with the outside-in-spokes.

The first blue spoke goes to the right side of the initial red spoke on the rim. In my working sheet, the blues are on the left of the reds because it is viewed from non-driving side, we have flipped the rim remember? It is good if you can imagine that your spokes have colors, otherwise.. you can mark it with color sticky notes. Now put all the other blue spokes on the hub namely hole number 3, 6, 8, 10, 12, 15, 17. All blue spokes goes to the next right holes of reds on the rims.

Step 4: The Orange Spokes

Flip your wheel over so that the non-driving side is facing up. Turn the hub counter clockwise. For orange spokes we are now working on inside-out spokes. These orange spokes are red spokes partners on one flange.

Start from the hole #3 on the hub (from the inside out), the orange spoke goes clockwise and make three cross to three red spokes. The first cross is from the above (up), the second cross is from above (up) and the third cross is from the below (down) the red spoke it passes. You might need to bend the spoke a little to bring it down the other spoke. Do not bend too much. Then it goes to the left of the blue spoke on the rim . So it is between a blue spoke and a blank hole on the rim after crossing three red spokes.

Put all the orange spokes on namely on hole 5, 7, 9, 12, 14, 16, 18 on the hub. They are all goes to the left of the blue spokes on the rim. There you can see we leave two holes blank on the flange without spoke.

Step 5: The Green Spokes

Flip the wheel again so that the driving side is on top. We are working with the inside-out spokes. Note that these green spokes are partners to blue spokes on the other flange.

Start from the hole #2 on the hub (from the inside out), the green spoke goes counter clockwise and make three cross to three blue spokes. The first cross is from the above (up), the second cross is from above (up) and the third cross is from the below (down) the blue spoke it passes. As on orange spokes you might need to bend the spoke more to bring it down the other spoke as our wheel is now getting tighter with more spokes. Try not bend too much or straighten it back after reaching the hole on the rim. It goes to the empty hole on the rim after making three crosses to the blue spokes.


Put all the green spokes on namely on hole 5, 7, 9, 11, 14, 16, 18 on the hub. They are all go to empty holes on the rim. Here we leave another two holes blank on the flange without spoke.

We are done. We are heading to the next level that is truing the wheel. Hope I can serve you another instructable on that one later ;)

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29 Discussions

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McKeller

4 months ago

Hey Chienline,

thanks for saving me the headache of buying new hubs. Tried it the other day on both my rims and worked really well.

For those interested, I swapped my hub from 36 hole rim to a 32 hole rim and I managed to make it work with spokes of one size. The spokes for the 32 hole rim were 4mm longer than the original ones, and some where sticking out a bit. If I were to do it again, I would lace red and blue with standard length, and orange and green with extra length spokes.

Chris

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chienlineMcKeller

Reply 3 months ago

You are welcome, Chris.
Yes you are right about "we need 4 shorter spokes" but I just couldn't get them here in my home town. Thankfully I have double wall rims, so the excessive spokes inside the rim do no harm to the tube ^_^

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Re-Cycle-On

10 months ago

Thank you a lot !
I just put my nexus 8 hub on a nice green hoop thanks to you =)
I was just wondering... I had to use 4 different spikes sizes, but still some spokes are really more tightened than other ones.
Can you tell me if your wheel did stay true a long time ? Or did you have to true it more often than "normally spoked" ones ?

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chienlineRe-Cycle-On

Reply 10 months ago

Normal riding, no issue so far ^_^
I think only 4 spokes out of 36 will bring little to no effect on normal riding. If you go extreme sport, well, better pick appropriate gears for that purpose :D

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DaynielleS

11 months ago on Introduction

Hello! Can you please provide or make a video from this(esp on youtube)? It just twists my mind and i need my wheels to be trued but i have this problem. Couldn't affor to buy new hubs or new rims though. 2 mechanics couldn't solve my problem. It twists my mind reading this so pls help me out

1 reply
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chienlineDaynielleS

Reply 11 months ago

Ups. I didn't shoot any vid on that project and ofcourse I am not going to redo.
But if you follow my instructables step by step, I belive you can do it. Just neet to read slowly and let the photos be your guide :)

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spillemand

Question 1 year ago on Introduction

Hej chienline,

how did you calculate the spoke lengths? Used any spoke-calculator on the internet?

1 answer
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chienlinespillemand

Answer 1 year ago

It's okay to use spoke length calculator, but I didn't because I couldn't find different sizes of spoke other than the universal 10.5” in town.
I have double wall rims that saved me from the exceeded length of some spokes ^_^

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keithandsaowanee

Question 1 year ago on Step 4

Can this be used with a larger ebike motor? I have exactly this problem with my 1000w motor and alloy rim.

Due to the much larger diameter motor I will have to buy 155mm spokes so the pattern will be different and maybe look weird but it should still hang together.

3 answers
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chienlinekeithandsaowanee

Answer 1 year ago

You may need some shorter spokes if they are available in the market. In my case, I have double walls rims that protect the inner tubes from the excessive spokes inside the rims

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keithandsaowaneechienline

Reply 1 year ago

They are available on eBay in just about any size, the distance between hub and rim is 150mm and a careful measure using my existing spoke suggests 155mm should work fine.

They will take a couple of weeks to arrive so I will let you know.

Thanks for the quick reply.

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NathanF83

1 year ago

Thanks for the write up. I just bought an E-bike motor kit and want to lace the motor hub (36 hole) into my more expensive 26" wheel (32 hole). With the motor there'll be considerable torque on the parts and I'm hoping for a top speed of 30 mph, so it will be high torque and high speed.
Have you been happy with the wheel laced this way? Any troubles? How many miles have you ridden on it since the modification? Ever notice any hopping at higher speeds?
Cheers!

2 replies
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chienlineNathanF83

Reply 1 year ago

Ah.. it has been two years. Time flies.

I am still riding this bike today. No issue so far, but of course normal riding, speeding sometimes, but no jumping acrobatics of course. Only jumping off/to sidewalk or few half feet stairs.

No problem at all. Not a single issue with my bike.

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NathanF83chienline

Reply 1 year ago

Well thanks so much for the reply. That's good news. I'm still looking into my options, and we'll figure something out.
Again, thanks for the write up!

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ZacW11

Question 1 year ago

Hi mate hope you don't mind me asking, i was just wondering how long aproximently were your spokes.

1 answer
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chienlineZacW11

Answer 1 year ago

Feel free to ask ^_^

They are all 10.5". I was about to get few shorter spokes but I couldn't find them at local stores. Finally I used universal 10.5" on the wheels. Some were half an inch inside the rims but thanks to the double-wall rims prevent the spokes stabbed into the inner tubes :)

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ANTNEY62

Question 1 year ago on Introduction


Good Day Sir. I have a Quick ? I'm trying to install a 3 speed Shimano Nexus (36spoke) hub into my rim (48 spoke) I want to try and retain the larger wheel if possible instead of downsizing to a 29. I'm getting mixed reviews that it will/will not work. Can you help me in anyway ? I read where someone was lacing 12 spokes in a radial set up but the lacing and location of the remaing spokes was very misleading. Is this possible ? Thank You Anthony

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chienlineANTNEY62

Answer 1 year ago

6 weeks ago, sorry I missed your question for so long.
Last year I was building my bike, and that was my first to be honest. Searching on the net put me in the same condition like you "will/will not work".
This is my advice, if you can get a proper hub (48 holes) to your larger rims, go get it. If you can't because of budget problem or you just can't find that 48H-hub, then start constructing your wheel, you might need different size of spokes or you can try different style of lacing combination :)
I can't help you further than tis because I don't own the 36H-hub and 48H-rim.

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charlie_L

1 year ago

I tried this with a Shimano Dynamo hub, it almost worked but some of the spokes were too short. On large flange hubs the extra distance between each spoke hole makes a big difference. I have yet to decide whether I buy more spokes, some 2mm longer some 4mm longer or buy a new rim.