120mm conversion

Posted on Thu 28th, September 2023

• #1

jano
Hey there, building up a so ez which has 135mm rear spacing, looking for one of the following:
- single speed disc wheel (to run with bolted cog)
- 135mm fixed wheel(set)
- 120mm fixed which has conversion kit/is convertable (i.e. some halo hubs)
Thank you!
• #2

Not/random-user

Wheelsets like halo and Mack keep the 42mm chainline and that won’t work with most 135mm chainstays. You need to be looking as something like a surly or Paul hub that run a 52mm chainline. I’ve also thought about getting a hope fat 135mm front hub then running superboost to get the correct chainline but then you’re dealing with quite a big Q factor.

Sorry for the ramble, working out what I need to build up.
• #3

jano in reply to @Not/random-user

Not at all! Makes sense with the chainline, I haven't actually checked what combination (if any) of cranks would work.

Aside from the proper way (surly hub) am leaning towards converting/building a 135mm disc single speed wheel and mounting cog on there.
• #4

Not/random-user in reply to @jano

I had a look on their website. They only list things 49mm and over for chainline so that rules out track cranks.
• #5

rosskenttt in reply to @jano

You can do a bolt on cog as well!
The coolest kind of wheel.
Front hub with axle kit!
• #6

AlexD

Pming you

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