The kit pinion is 21t, I use 21t in my x4 with a 6.5t motor but I do have a hole cut out under the motor to aid cooling and I use a fan on the esc, on rare occasions I go up to 23t if the track has a long straight.
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Website: http://www.wbmcc.co.uk/bingham-model-raceway.html
Schumacher Cat Xls, Rc10 Team(retired), Mardave Cobra, SST 98 Rally Car, TT02 Rally car, Wpl-c24 and Element Enduro builders kit #71 #deaddogracing
Autocare, unit 5 candleby Court, Cotgrave NG123RT.
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