Tired of broken pull-starts and blistered fingers? Upgrade your worn out pull-start with the HSP Racing Electric Rotary-Starter. It comes with a small backplate which fits many .15-.21 nitro engines like the Vertex .16, .18, Sh .18 .21 and Infinity .18 nitro Engines. It has a 1" bolt pattern (measured from one bolt hole to the other, and 39mm when measured diagonally) and a 12mm hex drive for the one-way bearing (one-way bearing is not included).) and requires a 6-cell NiMH stick-pack or a 2S LiPo pack (accepts Tamiya style plug) and charger. Starter also works with the majority of roto-start style backplates on market.
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