Tamiya - JR Double Aluminum Rollers w/ Rubber Rings (13-12mm) Electric Accessories Wire the standard 12mm hex design

the standard 12mm hex design will accept your favorite aftermarket wheels and tires

including 2 caster blocks and 2 spindle blocks

Tooth face width: ~5mm

the rocket can reach cloud topping altitudes of 1000 feet

Machined brass

Tamiya - JR Double Aluminum Rollers w/ Rubber Rings (13-12mm) Electric Accessories Wire the standard 12mm hex designWhen a Mini 4WD machine leans during a corner section, the upper 12mm roller makes contact with the course walls and helps to stabilize your machine's positioning and keeps you on track. This Double Aluminum Roller set features rubber rings on the 12mm rollers, which provide a braking effect to produce more stable cornering action.