HPI starter shaft for the Roto Start system.
HPI case for backplate unit for the optional Roto Start for the Savage.
HPI Roto-Start Engine Starting System. Replaces the standard pullstarter with a durable metal gear backplate and a handheld shaft driven starter.
HPI Back Plate unit for Nitro Star K Series w/Pullstart.
HPI Roto Start 2 System (FOR NITRO STAR F SERIES ENGINE w/PULLSTART.
HPI Roto Start 2 System (FOR NITRO STAR K SERIES ENGINE w/PULLSTART)
HPI Starting Shaft for the Nitro Star G3.0 Engine.
HPI Case for the Roto Start Motor Unit.
HPI Battery Lid for the Motor Unit on the Roto Start.
HPI Roto Start Gear Set for the K4.6 Engine.