Inner diameter: 10mm. Vary colors for you to choose
Can also be used on gas petrol motorized conversions kits
Attached the swing arm; the chain then runs over it to keep it aligned
Dirtbike nylon chain roller wheel complete with heavy duty bearings ready to use
Product Detail: Built to meet standard specification, strictly follow factory quality control.Fine workmanship, wear‑resistance and the service life is longer.
Quality Assurance: We offer a 24-month return service, please feel to us if you encounter any problems in using.