The Arrowmax BB DJC Set is engineered for the Serpent X20 to deliver a noticeable drivetrain improvement. Replacing stock blade-style driveshafts with ball-bearing double jointed cardan (DJC) shafts cuts mechanical resistance and helps the car transfer power more efficiently.
Ball bearings in the DJC joints provide a tighter engagement with drive cups, curbing unwanted free-play. That precision lowers wear on related parts and improves throttle response, giving the X20 crisper acceleration and more stable mid-corner behaviour.
These driveshafts are made to fit the Serpent X20 as a direct replacement, so installation is straightforward and requires no major chassis changes. They are a practical upgrade for racers and club drivers wanting better drivetrain feel without a complex build.
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