If you run the electric starter, the bulkiness of
the battery will cut down on airflow to the engine
(the kit comes with the CRF450RX enduro bike
battery tray). To combat this, MXA super glues a
3/8-inch rubber bumper to the back of the seat
base. The bumper raises the rear of the seat up
off the rear fender, even when you are sitting on
it, to allow extra air to flow down into the airbox.
PROBLEMS WITH THE SEAT
On several occasions MXA test riders had
the front of the seat come unhooked. When
we landed hard on the seat, the middle section
flexed so much that the front hook popped out.
Additionally, when the seat pulls out, the gap
between the seat and the bodywork often causes
the rider’s thigh to get pinched between the two.
Test riders always made sure to push the seat
as far forward as possible and weight the saddle
before tightening the seat bolts.