Features:
CNC machined for precision
Made of high-quality metal materials
Wear-resistant and strong, maintain the good performance of your rc car
Stable operation easy to use
Fine and durable workmanship in use

Specifications:
Material: Metal
Suitable for HSP 94122 02023 16 style and other oil truck
Double Gear Set Suitable for 94102 94106 94109 94110 94122 94155 94166
16-21T Clutch Housing: 25.58mm*28.1mm
Bearings: 10mm x 5mm x 4mm
Lightweight alloy flywheel: Outer diameter 34.93mm, Center hole dia 5mm
Axle: to fit 5mm crankshaft thread - 21.43mm long (entire length)
Axle: requires (not included) M3 x 8 metric thread screw and a couple of washers

Package include:
1 x Double Gear Set(Random color of spring)