Quick view Add to Cart Force Models .21R Nitro Engine with pull start, for 1/8 Scale FC-E21R36-1 $189.00 inc GST Type - 21R, Rear Exhaust, Pull Start C.C. - 3.46 Bore - 16.6mm Stroke - 16.0mm Crankshaft: 13mm SG Output - 1.9 PS @ 29000rpm Practical RPM range - 2,500~33,000 Compare