Power Hobby - Twister Twin / Dual 40mm 1/8 1/5 Motor Aluminum Cooling Fan - Green RGRB1209 If you've got plenty of

If you've got plenty of power to strap into your RC

one top reduction gear

The radius of rounded corners is calculated by multiplying square side length by R (10mm square x R10% = 1mm radius corners)

This kit is an all-new molding

and engine braking control

Power Hobby - Twister Twin / Dual 40mm 1/8 1/5 Motor Aluminum Cooling Fan - Green RGRB1209 If you've got plenty ofSuper high speed fan with a monster performance. Extremely high airflow. Recommended power source 3s lipo. The 3S adaptor is included with an on off switch. Specifications: Dimensions: 80x40x28mm Bearing: Ball Bearing Operating: Voltage 6V 11. 1V Motor mount sold separately: 36 38 Dia. Motor: Part# PHMount01 40 42 Dia. Motor: Part# PHMount02 47 49 Dia. Motor: Part# PHMount03 56 58 Dia. Motor: Part# PHMount04