All Balls Black Upper Chain Roller For Honda CRF 250R 2010-2017 dirt-yamaha-ttr-50-2015 Needle thrust bearings have been

Needle thrust bearings have been replaced with Teflon bearings

Seal 1 Seal 1 Washer 2 Tapered Bearing 1 Tapered Bearing 1

and even up to 800 degree celsius over a short term

Water and dirt act as a grinding compound between the seal face and the mating surface of the spacer

Description QTY per Kit Needle Bearing 2 Needle Bearing 4 Seal 2 Seal 2 Seal 4 Spherical Bearing 1 Needle Bearing Shaft 1 Needle Bearing Shaft 1 Needle Bearing Shaft 1

All Balls Black Upper Chain Roller For Honda CRF 250R 2010-2017 dirt-yamaha-ttr-50-2015 Needle thrust bearings have beenSpecifications All Balls Racing Dirt Bike & ATV Chain Rollers are a direct replacement for the OEM design. We use a triple lip sealed ball bearing for superior dirt exclusion compared to OEM bearings. Chain Rollers are model specific.