Chain T8F-110 (Part #10149) Fits Burromax TT750R electric mini bike. It will also work with all Burromax 750 watt motors. Chain includes master link. This chain is heavy duty, has an 8mm (5/16") center to center spacing between each link pin, a 4.7mm (3/16") spacing between inner plates, and is approximately 10mm (3/8") wide. This chain has 110 links.