Feature:
1. PRODUCT FUNCTION: This chain tensioner can replace Brompton's original rear derailleur as a whole, helping the chain to prevent the chain from falling off more effectively, so that you can enjoy riding happily.
2. APPLY TO: TThe rear derailleur chain tensioner has 10T teeth, which is not only suitable for internal shifting folding bikes such as 3sixty, but also very suitable for mountain bikes, road racing, stationary bikes, single speed bikes, etc.
3. WEAR-RESISTANT: The folding chain guide is made of high-quality aluminum alloy and POM steel material, which is light in weight, wear-resistant and durable, and has a long service life, which can accompany you for a long time.
4. LIGHT WEIGHT: 10T Bike Chain Tensioner is light weight, weight: about 320g/11.3oz, it will not put extra burden on the bike, you can use it with confidence.
5. GUARANTEE: If you are not satisfied with our product you received, you can send emails to us at any time. We will reply you instantly and help you solve your problem.

Specification:
Item Type: Bike Chain Tensioner
Material: Aluminum alloy+POM
Number of Teeth: 10T
Fitment: Fit for 3sixty and other internal variable speed folding bike (single speed, internal 3 speeds, external 2 speeds, internal 5 speeds and internal 8 speeds)
Application: For Brompton special rear derailleur can replace for Brompton original rear derailleur as a whole, and help the chain to prevent the chain from falling off more effectively
Weight: Approx. 320g / 11.3oz

Package List:
1 x Bike Chain Tensioner
2 x Wrench