TT02-01D-KAL156 comes with a new aluminum suspension and gear box with a 1: 1.56 helical gear. This helical gear will make a maximum efficiency and it will support a powerful drift driving! This kit has a 2.6mm GRT chassis. Also, the front and rear gear-box has become more rigid.
https://www.broadtech.hk/eagleshop/shop/ShopProductDetail.aspx?id=TT02-01D-KGA156
This chassis uses 61T Spur Gear to the center of the motor but it can use normal 70T and 67T Speed Tune Gear.
In addition, the rear solid axle adopts a helical gear that combines strength and smoothness, and the standard rear diffuser will produce a scaled feeling. The Steering wiper is designed for light weight handling, and the CS ratio is 1:1.56.
Included in the kit: Front One Way, Strong Helical Gear, Rear Solid Axle, Aluminum Center Shaft, TSD Universal Shaft, Drift tire foil set