6KU Fixie Crankset

6KU's durable and affordable fixed gear crankset designed for urban exploring. Finish that build or refresh that old bike with this powerhouse. Directly compatible with all of 6KU's fixie and track models, plus many other make/models too. 

Recommended bottom bracket spindle length: 103mm. Bottom bracket is not included. 


  • Alloy Crank Set 170mm
  • Compatible most square taper bottom brackets (i.e. Neko bottom bracket)
  • 110 BCD / 5 bolt mounting pattern
  • 46 tooth chainring

Customer Reviews

Based on 9 reviews
Always be or always have a good bicycle mechanic.

Hello friends, the pedals are maked L and R for left and right sides of the bike-as viewed from the riding position. Each pedal is threaded opposite of the other, great care should be used at this point of assembly, and a little grease on the pedal threads is reccomended.
You will never have a problem if done correctly.

My pedals flew off.

I recently bought a 6ku fixie I followed the instructional video and on the first ride my pedals flew right off almost causing me to crash.

Kealoa, sorry to hear about the issue, hope that you didn't get seriously hurt. Feel free to send us some more pictures & your order number to info@6ku.com for a warranty evaluation.
Pedals came loose

My bike just came less than a week ago and I decided to assemble it on 12/7/18. It has only been 4 days of use (not constant) and the left pedal flew off mid- ride which almost led me to get run over. I got back home only to see the inside threading of the crank arm was completely shaved off. I do not hate this bike but if I am paying 200$ and this is what is happening then I think I have to bring this to your attention for the safety of future costumers.

Hi Brandon, Sorry to hear about this issue, we would love to lend a hand. Feel free to email us at info@6ku.com, thanks.
Pedals came loose

Recently bought myself a fixie from 6ku, within a week of use, one of the pedals came right off as I was using it, I checked to see the problem only to see the threading on the inside of the crankset to be completely flushed out and now I need to pay again to get a new one

Pretty Solid - Good Riding

careful not to strip the cranks when putting in pedals, especially if your pedals are steel. This crankset is aluminum so steel can over power it carefully. Just a warning. Make sure to screw your pedals in nice and straight