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precision steering response (unlike other 2 pieces bolt together design of other manufactures)
Installation onto vehicle
The RPM version has a larger front radius to help ease transitions up and over tall obstacles
Thatâs right
How many times have the bragging sessions gotten out of hand
HPI Racing 14mm Hex V3 Roto Start Back Plate HPI120277 SCP125R precision steering response (unlike otherThis is a Roto Start back plate for the F & G Series Nitro Star Engines that use a 14mm hex one way bearing. To use this back plate, your F or G Series engine must be fitted with #107829 ONE WAY BEARING 14mm HEX FOR PULLSTART ROTOSTART. Use with any Starter unit from a Roto Start or Roto Start 2 system.
