Reviews for Viper R/C 12.8mm High Torque VST Tuning Rotor [VIP8VSPVSTR04]
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Sunday, Feb 24 2013 (about 2 years ago)
Viper R/C 12.8mm High Torque VST Tuning Rotor
It may not be ROAR legal, but this option makes your Viper VST motor into a monster. Try it in an 8.5T on a 2wd short course truck.