8/9/10/11 Speed 11T/12T/13T Freewheel Flywheel Pinion For

Is it difficult to change the speed of bicycle? Do you feel that it's hard to ride your bike? It is time to change the chain. Our chain is easy to install and fine workmanship. You won't be disappointed.

Features:

The surface is waterproofing.

Compatible with Shimano mid or long cage derailleur.

Suitable for highway or mountains.

The shape of cogs are specially designed for shifting performances.

Made of fine material.

Specifications:

Material: aluminum

Color: silver

Species: 8s 11T, 8s 12T, 8s 13T, 9s 11T, 9s 12T, 9s 13T, 10s 11T, 10s 12T, 10s 13T, 11s 11T, 11s 12T, 11s 13T (optional)

Item size:

8s 11T / 9s 11T / 10s 11T / 11s 11T: 4.20 * 4.20 * 0.55cm / 1.65 * 1.65 * 0.22in

8s 12T / 9s 12T / 10s 12T / 11s 12T: 4.40 * 4.40 * 0.38cm / 1.73 * 1.73 * 0.15in

8s 13T / 9s 13T / 10s 13T / 11s 13T: 5.30 * 5.30 * 0.44cm / 2.09 * 2.09 * 0.17in

Item weight:

8s 11T / 9s 11T / 10s 11T / 11s 11T: 10g / 0.35oz

8s 12T / 9s 12T / 10s 12T / 11s 12T: 11g / 0.39oz

8s 13T / 9s 13T / 10s 13T / 11s 13T: 15g / 0.53oz

Package size: 8 * 6 * 1cm / 3.15 * 2.36 * 0.39in

Package weight:

8s 11T / 9s 11T / 10s 11T / 11s 11T: 10g / 0.35oz

8s 12T / 9s 12T / 10s 12T / 11s 12T: 11g / 0.39oz

8s 13T / 9s 13T / 10s 13T / 11s 13T: 15g / 0.53oz

Package list:

1 * Cassette cog