RDX aluminum spool outdrives

D1-501CS - Aluminum spool outputs RDX - Rêve D

A steel cup that can be attached to the D1-500SPM spool cup, standard equipment on the RDX.
The increased stiffness of the steel spool cup improves the direct feel and responsiveness of the throttle.
Moreover, if you like driving on asphalt and other road surfaces that put a lot of load on the cup, you can reduce damage to the cup by replacing it with the original plastic cup from the kit.