2 Speed Transmissin **hpi Rs4 3 Ss**
There are 2 set screw from your 2 speed transmission, turn the adjusting set screw from your 2 speed transmission counterclockwise so the transmission will kick in soon, be carefull not to turn the locking set screw of the drive cup. For you to run faster, use 20 to 30 % nitro, replace your pinion and spur gears, and whoolaaaa ! Your car will be flying !!! WHOOOHOOOO ! ! ! :spinnyeye