Author Topic: I need some super cheap crank arms  (Read 4208 times)

POTOOOOOOOO

I need some super cheap crank arms
« on: March 27, 2026, 09:26:50 AM »
Hey all.

I need some cheap crank arms for my turbo trainer bike.

They need to be a 3 bolt SRAM chainring fitting with ideally a 30mm axle, but 29mm will also work.

Any suggestions please

shaxberd

Re: I need some super cheap crank arms
« Reply #1 on: March 27, 2026, 09:36:01 AM »
That sounds like a Senicx PR2 job: https://aliexpress.com/item/1005006082575629.html

I think the other cheap 3-bolt options for road bikes (Prowheel, Goldix) only come in 24mm.

alfiomotrambo

Re: I need some super cheap crank arms
« Reply #2 on: March 27, 2026, 09:44:30 AM »
Or the ZRACE, witch i think is the same as the Senicx https://it.aliexpress.com/item/1005010692898957.html

POTOOOOOOOO

Re: I need some super cheap crank arms
« Reply #3 on: March 28, 2026, 03:37:23 AM »
Thanks guys.

That ztto could work but I wouldn’t mind something shorter than 170mm.
That’s my current length, so wouldn’t mind taking this opportunity to experiment.


Any more than 50-60 euro and I might as well get a used SRAM force crank.

If anyone has any other suggestions, I’m open to any ideas.

shaxberd

Re: I need some super cheap crank arms
« Reply #4 on: March 28, 2026, 01:19:27 PM »
The PR2 exists as a 165mm variant, but can be hard to find - does this work for you?
https://a.aliexpress.com/_Ezp4fWC
« Last Edit: March 28, 2026, 01:23:34 PM by shaxberd »

POTOOOOOOOO

Re: I need some super cheap crank arms
« Reply #5 on: March 28, 2026, 03:13:36 PM »
Thanks.

I decided to go ahead and buy some SRAM Force arms for a very good deal.

« Last Edit: March 28, 2026, 04:41:28 PM by POTOOOOOOOO »