For serious club racers and hobbyists, the Arrowmax AM-010070 BB DJC provides a straightforward performance upgrade for the Xray T4. This 52mm double cardan joint shaft smooths out driveline feedback and contributes to more controlled throttle response. It is a practical mod for drivers chasing consistent performance lap after lap.
The BB DJC helps cut vibration in the driveline and reduces parasitic friction, resulting in cleaner power transfer. That clarity in drive feel makes car behaviour more predictable when pushing on corner exits.
Designed to match the Xray T4 series, the part drops in with basic tools and little fuss. Swapping the shaft lets you quickly test handling differences during track sessions.
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