Shorter crank arms?

[1oldfart]

I want to change my 160mm on my small 2021 Stance E+ for some 155 mm
Can you please recommand me some that will fit?
What is the price? Do you have a link?
Thanks

 

[Nobrks]

I had the same queation in the Reign e+ 2022, thread:
Hope 155mm is the recomendation.

 

[pwiles1968]

I assume if you shorten cranks you may get less range from battery as your leverage on the pedal is reduced ? It will be nominal with 5mm reduction though.

 

[1oldfart]

I assume if you shorten cranks you may get less range from battery as your leverage on the pedal is reduced ? It will be nominal with 5mm reduction though.

Some say shorter equal faster rotation so more time at high cadence when the assist is in the better zone so range is improved. I know some use a smaller chain ring to achieve this goal, faster cadence/better range.
3 years ago i had 175mm on my Haibike/Yamaha and for 50$ i switched to 165.
Hope are 255$canadian so i might get a 140 or 150mm fork to replace my 130 this will
lift pedals and BB and add value when i resale it.

 

[RickBullotta]

The only noticeable impact from shorter cranks on an eMTB is more ground clearance. Anything else is largely subjective or "rounding error".

 

[jeanmarc]

The only noticeable impact from shorter cranks on an eMTB is more ground clearance. Anything else is largely subjective or "rounding error".

For a similar Force applied to the pedals (same rider), the difference in Torque from 160mm to 150mm cranks is about 6%. If you sustain a 6% higher cadence because of shorter cranks (60 to 64 rpm) then, at the end of the day impact = 0

 

[pwiles1968]

When I said assume I meant all things being equal your cadence being the same etc but as I said 5mm or 6% is not a big change at the end of the day.