Moose Sealed Chain Rollers
 

I noticed Moose has sealed bearing chain rollers for GasGas. I decided to replace the stock lower chain roller because the stock one was rather weak.

http://www.mooseracing.com/catalog.j..._group_id=4478

Upper - Part# M795-00

Lower - Part# 1231-0036

Contrary to popular belief, the Gas Gas roller is the best one made.
I have tried the ones with the bearings, they get ruined real quick in muddy rides.
The GG roller is "self cleaning" and it will always roll.