The answer is easy, Pyramid Parts Oil seals are all Low Stiction (low friction) seals designed specifically for motorcycles.
Honda CRF 450 R ( 2002 - 2008 ) Water Pump Shaft Seal Gasket & KOYO Bearing Kit
Yamaha YZ 250 2-Stroke ( 1999-2026 ) Water Pump Repair Service Kit KOYO Bearing
Koyo Bearing 5203-2RS-C3 (ID:17mm x OD:40mm x W:17.5mm)
Honda CR 250 R 1985 1986 1987 1988 1989 1990 1991 Water Pump Kit & KOYO Bearing
Honda CR 125 R ( 1990 - 2004 ) Water Pump Repair Service Kit with KOYO Bearing
Yamaha YZF 450 YZ 450 F ( 2003 2004 2005 ) Water Pump Kit with KOYO Bearing
