M10X1.25X160 (Part #00167)Listed under the Rear Chain, Brake and Axle Part and Tire on Exploded View in Burromax Electric Mini Bike TT350R Matte Black Carbon Fiber Burromax Fork Clamp Assembly Upper Black (#8 #9 #10) (Part # Electric Mini Bike Rear Chain, Brake and Axle Part Burromax Electric Mini Mike Burromax M10X1.25X160 (Part #00167) Fits TT250 TT350R TT750R Designed with the junior riders in mind, our training wheels add safety and stability to your child's Burromax mini bike. Easy bolt on design makes installation a breeze. Heavy duty design and real air filled tires gives you the added safety and security. Bike in picture is not included. Purchase includes training wheels set. Compatible with the Burromax TT250 and the TT350R. Training Wheels Accessory Kit for TT Series Burromax Mini Bike Models (Part #19705) Fits Tt250 TT350R Burromax Chain 25H-130 Includes Master Link (Part #10032) Fi Burromax Electric Mini Bike TT750R Lithium Ion Powered (Colo Burromax Electric Mini Bike TT750R Lithium Ion Powered (Colo