Hop-Up Options no.2047 XV-02/TT-02 Front Direct Coupling Set (39T) Item No: 22047 ★Used in place of the standard gear differential, this front direct coupling improves initial acceleration and makes your car more stable on the brakes. ★The set includes 39T ring gear, bevel pinion gears, aluminum front direct couplings, joint cups and more. ★The image at right shows an assembled example. Compatible Chassis TT-02*1, TT-02D*1, TT-02 Type-S*1 & XV-02 PRO Chassis*1: Use with Items 54623,…