Front sprocket 420 to 520

[jcone]

Hi , is there a manufacturer out there that makes a 520 pitch front sprocket for 17mm shaft. I’ve got a custom build going on and I’m trying to figure this out. it’s a Piranha 140 engine that’s why I thought I would post it in the pit bike section.

Edited July 9, 2020 by jcone

[dirtbkr188]

THIS ONE might work for you

My mistake, it's a 20mm OD, not 17mm

Edited July 9, 2020 by dirtbkr188

[jcone]

Thanks I made one

[Randy K]

19 hours ago, jcone said:

Thanks I made one

good job, should work good for you as long as the welds didn't warp anything

[Affy Khan]

I have this same problem too on my custom project any idea what to do??

[jcone]

I cut the center out of the 420 and welded it to the center of the 520, it’s holding up just fine with 30hrs of ride time on my custom build.

[777654321]

Sprocket specialists have made them for me in the past.