Mini 4WD anodised red 17mm ringless roller M4WD-31/RE by 3Racing  [M4WD-31/RE]

17mm ringless M4WD-31/RE roller for Mini 4WD race setups

This 17mm ringless aluminium ball race roller is supplied as a spare part for Mini 4WD models. Intended for use on racing 4WD chassis, it can replace standard rollers in tuned machines. The ringless construction reduces internal contact surfaces in the roller housing versus ringed designs; experienced hobbyists will notice how this changes fitment and rolling characteristics on tuned chassis.

Compatibility notes: the roller suits common Mini 4WD roller mounts and axle systems used on race chassis. It is not a full upgrade package; fitters should confirm axle diameter and spacer fit before mounting. Not recommended for Wild Mini 4WD or Scale Mini 4WD; tuning tips here target performance chassis such as MA, MS, AR, FM-A, VS and Super-II when relevant.

Finish and handling: the part is anodised red and machined from aluminium. Avoid over-torquing roller screws and check for side play after initial runs. Regular cleaning and burr checks will keep rolling consistent and reduce wear on chassis parts.