Complete assemblies with all new seals. Fits: YZ125/250/250F/450F - 06-10 CRF450R - 09-10 KX450F - 07-10 $59 per each assembly. Total weight per assembly is 63 grams (2.20 ounces). Stock units are 45 grams (1.6 ounces). Updated shaft seal, (same as 09 to 10 seal). Fully compatible with EPNP ICS kits. Lifetime warranty on the metal section(s) of the unit. Plastic equivalent assemblies are still available for $45.