Bánh lăn ròng rọc gắn cùi đề xe đạp 11T chuyên dụng

Specifications: It is made of good quality material, durable to use. Bearings are made of a ceramic material, which can reduce friction. So, you can accelerate faster and maintain speed with less power input. Item Name: Derailleur Pulley Material: Aluminum Alloy, Ceramic Ball Specification: 11T Features: Durable, Stable, Useful Size: 4.5cm x 1.5cm/1.77" x 0.59" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Derailleur Pulley