✨bánh đà Xe đạp leo núi Cassette chuyển số 9 tốc độ,bằng thép cường độ cao, chống oxy hóa mạnh

This cassette is a cassette sprocket for 9-speed or 10-speed shift mountain bike. It is made of high tensile steel and made by the technology of quench-temper hardening with higher strength, durability and has extreme resistance to abrasion. Features: It has higher strength, durability and has extreme resistance to abrasion. The strong antioxidation makes it hard to rust to have a long service life. Unique design of the gear sprocket exclusively for mountain bike, you can control the shift function well. Hollow design, and the weight is reduced to some extent. The surface made by the technology of chrome plating, no fading on the plated surface. A fine appearance and will give you a luxurious feel.

Specifications: Type: 9-speed, 10-speed (optional) Material: steel Number of tooth: 9-speed: 11-40T 10-speed: 11-42T Item weight: 9-speed: 535g/ 18.9ounce 10-speed: 542g/ 19.1ounce Package size: 155 155 60mm / 6.1 6.1 2.4in Package weight: 9-speed: 560g/ 19.8ounce 10-speed: 600g/ 21.2ounce

Packing List: 1* Flywheel