Factory Effex (12-26326 B4 Seat Cover
Factory Effex B4 Seat Cover Fits Honda CRF250 14-15, CRF450 13-15. The B4 features super durability high grip seat material to keep you in place, and heavy duty DuraTech ballistic nylon reinforcements to prevent knee brace wear. The seat includes raised OEM logos, just like the TC4. Track-tested by the FX race teams, the B4 is the pro riders' seat cover of choice.