This GPM/HotRacing Swing Arm Chain guide is a 3D printed designed for the Losi Promoto-MX motorcycle model. Your Promoto-MX swingarm has to have been upgraded to a GPM swingarm (check eBay listings for this upgrade). It's a great addition to the vehicle for those who enjoy off-road racing and want to protect their original plastics. It comes in a multiple colors - please select from the menu.

This Swing Arm/Chain guide fits (has been tested) GPM/HotRacing Swingarms for the Losi Promoto MX motorcycle. We recommend putting some thin double sided tape or shoe goe to keep it from sliding (it fits tight already but may ride up/down the swingarm).

This print uses a COARSE 3d printing configuration and also a higher temperature setting for durability. The final product shows the larger filament extrusion and is a rougher cut than usual prints but sustains impacts slightly better.

Please note that some drivers have reported that they had to use slightly longer screws.