Shorter cranks for a Bosch SX system. Which offset will be compatible, and general sense check!

[Rockhopper70]

I’m getting quite a few pedal strikes on my bike, a Canyon Neuron On:Fly, which came stock with 170mm cranks.

I’m wondering about going shorter, as short as 155mm which seems to be a good length to encourage a decent cadence, which is what the SX system needs.

Hope are the boutique choice, a bit speedy, but they come in two offsets, standard and narrow, and the latter seems to be the correct choice. I’ve also seen the SRAM X0 155mm for around £100. They have no options for offset, so are they likely to be narrow, or standard?

 

[irie]

Have a look at Miranda cranks - they go to round and round just like Hope and SRAM but are far less spendy.

 

[MTcycler]

OEM on Pivot Shuttle SL/AM is 160mm Praxis eCranks; 160mm RaceFace ERA on Transition Regulator; both work fine with Bosch SX. When I dropped to a 155-mm crank on a different eMTB, I felt less stable off the saddle while riding chunkier terrain, and switched back to 160 mm.

 

[Rockhopper70]

First test ride out today with the X0 155mm cranks. The riding didn’t feel noticeably different but there was definitely fewer pedal strikes, even none that I could notice. Went across my usual rocky moonscape route to check and all good. Definitely a worthy upgrade.

 

[sjturner2112]

First test ride out today with the X0 155mm cranks. The riding didn’t feel noticeably different but there was definitely fewer pedal strikes, even none that I could notice. Went across my usual rocky moonscape route to check and all good. Definitely a worthy upgrade.View attachment 185205View attachment 185206

yeah, I can't tell the diff between my 155s and my 165s except far fewer pedal strikes and a lot more confidence when I need to pedal over roots and rocks.