For Brompton Chain Tensioner 2-3-6 Speed Chain Tensioner Stable Chain Zipper Folding Bicycle Pressure Chain _x000D_ For Brompton Chain Tensioner 2-3-6 Speed Chain Tensioner Stable Chain Zipper Folding Bicycle Pressure Chain _x000D_ _x000D_ Only for single speed, inner 3-speed out 2-speed, inner 5-speed, inner 8-speed_x000D_ Material: Use high-quality production, which is fine workmanship and wear-resistant._x000D_ Fine Workmanship: Strictly control product quality and specifications during production._x000D_ Durable: Durable construction for long-lasting performance._x000D_ _x000D_ Speed compatible: 2-3-6 Speed Freewheel_x000D_ Material: Aluminum alloy_x000D_ colour: Black_x000D_ _x000D_ Package Contents: _x000D_ 1 x guide chain_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ 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._x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_