Answered Trek powerfly 4 crank arm

[Woodyboy]

I’ve managed to bend a crank arm on my trek powerfly 4. I’m finding it really difficult to find a replacement, even Evans are struggling. Does anybody know what arms I need? It’s a Bosch gen4
Thanks in advance!

 

[Doomanic]

Any Trek dealer will be able to order you the correct part. Evans are a box shifter these days, have you got a proper LBS nearby?

 

[Woodyboy]

Any Trek dealer will be able to order you the correct part. Evans are a bos shifter these days, have you got a proper LBS nearby?

I had a small warranty issue as well so took to them as that’s where I bought it. They have been helpful but saying no stock anywhere. I was trying to search myself and no obvious which are the correct ones. I can contact trek direct ??

 

[coregrind]

Does anybody know what arms I need?

The stock set on the 2021 Powerfly 4 looks to be the FSA CK-220 in 165mm. If so, they're cheap. I bought a 160mm set and didn't have much trouble tracking them down in the US at the time. Nowadays, and in a different country, it might be a different story. The FSA part number for the 165mm set is 324-0055002090. Otherwise, you might invest in a pair that are higher quality.

 

[Woodyboy]

The stock set on the 2021 Powerfly 4 looks to be the FSA CK-220 in 165mm. If so, they're cheap. I bought a 160mm set and didn't have much trouble tracking them down in the US at the time. Nowadays, and in a different country, it might be a different story. The FSA part number for the 165mm set is 324-0055002090. Otherwise, you might invest in a pair that are higher quality.

Thanks for your help, just went I needed