Only for single speed, inner 3-speed out 2-speed, inner 5-speed, inner 8-speed<br> Material: Use high-quality production, which is fine workmanship and wear-resistant.<br> Fine Workmanship: Strictly control product quality and specifications during production.<br> Durable: Durable construction for long-lasting performance.<br> Speed compatible: 2-3-6 Speed Freewheel<br> Material: Aluminum alloy<br> colour: Black<br> Package Contents:<br> 1 x guide chain<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store