These shorter crank arms for my BAFANG 620 motor arm perfect. No more pedal strikes. I can tell that the push force in the pedal is less, but I think the savings $ on pedals will pay off. Plus with a sprocket and cassette change in the gearing these new cranks are just right.

I ordered new cranks and peddles for my Juggernaut FS Ultra. I ordered directly from the website. The new cranks appear to be about 1/2” shorter than the the ones i am replacing. Biktrix has been very good about everything i have ordered, I don’t know what went wrong here.

Quality parts, lightning fast shipping! What more can you ask for! These arms were a great upgrade for my Bafang m610 motor eBike!

These 20mm shorter cranks work better than the oem 170mm cranks. Less hits to the ground.

Excellent quality but way to wide offset,bought another brand with 18mm offset not 35mm, would of never ordered if I knew that.

Perfect for my cobra pro and biktrix ultra fs

Miranda ISIS Crank Arms Set 150mm Q35

Had to purchase a replacement set because one got bent due to a mishap.
Great length and less prone to pedal strikes they say.
However, Biktrix support (as good and responsive as they are) needs to NOT send a universal style puller to change these out.
It absolutely will not work on these arms and the Bafang ISIS setup!
Please stock and sell -OR- recommend the Park Tool CWP-7, it works like a charm! It has 2 interchangeable tips that go on the extruder bolt,
whereas the universal tip is much too small and doesn't press up against anything, as the spline is hollow. And the video link to lay the bike on it's side to help the universal do the job is unprofessional and an unacceptable way to do the job.
Biktrix universal on the left, Park Tool CWP-7 on the right. Happy e-Biking!

Shorter cranks are great for avoiding hits. But the q-factor is a bit wider and takes a bit to get used to. Otherwise very high quality and would recommend!