Bánh răng ròng rọc bằng hợp kim nhôm độ bền cao chống trầy cho xe đạp

Description: Hollow design makes it lightweight and adds no extra pressure to the bike. Sealed bearing design makes it smooth and helps protect it from water and dust. Deep tooth design helps effectively reduce the chain drop while bringing smooth shifting and stable winding. Premium aluminum alloy material makes it solid and not easy to break. Made of high-quality aluminum alloy material, it is firm and durable to use. The diameter of the product is 4.1cm, the thickness is 0.8cm, and the suitable axis diameter is 0.4/0.5/0.6cm. It is suitable for mountain bike or road bike. Item Name: Rear Derailleur Pulley Material: Aluminum Alloy Attribute: 11T, 13T Features: Lightweight, Hollow, Sealed Bearing Size Details: Diameter: 4.1cm/1.61" (Approx.) Thickness: 0.8cm/0.31" (Approx.) Suitable Axis Diameter: 0.4cm/0.16", 0.5cm/0.2", 0.6cm/0.24" (Approx.) Notes: 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. Package Includes: 1 x Rear Derailleur Pulley With Screw 1 x 4mm Reduction Sleeve 1 x 5mm Reduction Sleeve