You can also use S100 wax which is basicly P21, but made for Harley Davidson at a much cheaper price. I got mine from the local Harley dealership and I paid $16 cdn.

'99 Silver Frost.SE.V6.MTX Drop-in K&N / Masked rear Reflector st200/Eibach / SVT E1's FMS Wires / ES Rear Bushings