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

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:

Brand: ZTTO

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 * 0.22in8s 12T / 9s 12T / 10s 12T / 11s

12T: 4.40 * 4.40 * 0.38cm / 1.73 * 1.73 * 0.15in8s 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 / 0.39oz8s

13T / 9s 13T / 10s 13T / 11s

13T: 15g / 0.53oz

Package list:

1 * Cassette cog