Hobbyking 19T/5mm M1 Hardened Steel Pinion Gear. Supplied complete with shaft locking grub screw.
Material: Hardened steel
Finish: Hard coated
To Fit Shaft Size: 5mm
These hobbyking mod1 hardened steel pinion gears are just great. Quality seems very good and almost as good as other brands but price is just much better.
Fitted this to my bz888 to increase the top speed. It's stock other than harder front springs. In stock form it did 59km/h. This should push it over 80. I'll update when I get a chance to measure. The gear was very easy to fit and works perfectly, cheapest possible upgrade. The car still has heaps of acceleration. Could easily have used a gear with more teeth.barato y buena calidad