Thanks for the info! I’ll stick with the 21mm, though I will try and find some ways to improve it.

mhm, well I guess Iwill try my luck with a steel bushing. I will though still keep looking for a K needle bearing

Well the bearing is HK type, im sure you know what kind of needle bearing it is (if not just google it). A shop has some but they arent so cheap, they are 16eur/piece. If you are intrested I can order a few more for you. As for the bushing, i was thinking that instead of bronze I would use a steel alloy. Its very hard and heat resistant. It would…[Lees meer]

I have 2 solutions in mind and i would like to hear your thought.

1. I would make a bronze bushing and fit it into the crank sort of like a spacer
2. I found a HK type needle bearing size 10x15x15 wich are the perfect measurements for the simo crank. The reason they are hard to find is because their seize is a non standard one.

send me that link when you have the time 🙂

no sorry mate, but thanks for trying. The thing is i got the 10 pin piston not a 12

mailed them, waiting for an anwser 😀

never mind 😐

Thank you very much 😀