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HPI Backplate - HPI NS BB & Force 21/25
This is the Back Plate Unit for Nitro Star BB Series & Force 21/25 from HPI.
Back plate unit designed for the Nitro Star BB Series engine and the Force 21/25 (roto start). Designed for use with the Roto Start. Black nylon back plate. Steel constructed screws, hex tool, gears. Spare parts for HPI's Roto Start System, for Nitro Star BB, or Force 21/25.