Tekno RC TKR7221 Differential Ring Gear 40T ET410 Transmitters The bright green door is

The bright green door is a little rugged now and the wood paneled walls could use a good wash

With its combination of advanced features and user-friendly design

Renowned for its robust design and versatility

1D feature fully interchangeable parts between the two kits which allows the user to pick and choose what configuration they want to use depending on track conditions

Tekno RC TKR7221 Differential Ring Gear 40T ET410 Transmitters The bright green door isTekno RC TKR7221 Differential Ring Gear (40t, ET410, use with TKR7222) Product Description: The TKR7221 is a 40 tooth differential ring gear for the Tekno ET410, used with the TKR7222 diff pinion. CNC machined and hardened for smooth, durable operation. A direct replacement. Features: 40 tooth differential ring gear Use with the TKR7222 diff pinion Hardened steel for durability For the ET410 Fits: Tekno ET410 (with TKR7222 pinion) Includes: 1