This is the FX upgrade to the Factory Effex bestseller - the B3. The B4 features all new high-durability Super Grip seat material to keep you in place, and heavy-duty DuraTechTM ballistic nylon reinforcements to prevent knee brace wear.
The seat includes raised OEM logos, just like the TC4. Track-tested by the FX face teams, the B4 is the pro riders' seat of choice.
Available for YZ125/250 2002 to 2013.
