Chain Tensioner, 2 Speed

This is our new version of the CNC machined aluminium Chain Tensioner for 2 Speed Brompton's. We have completely re-designed the chain tensioner to get a cleaner and more elegant look then the original plastic tensioner. The main difference from the old design is that the tensioner arm now rotate around a pivot bolt mounted directly on the rear hub axle. This make it possible to reduce the bulky base of the tensioner and make it follow the lines of the tensioner arm.

More then 2 hours of CNC machining is going into making each of these chain tensioner. The tensioner is machined from 6061-T6 aluminium, one of the highest grades of aluminium alloy you can get. By using 6061-T6 aluminium it have been possible for us to design a light weight and elegant chain tensioner, without comprimising on strength and stiffness. With a weight of only 124 grams including the spring and the privot bolt, just 7 grams more then the plastic version , it is one of the lightest aluminium chain tensioner for Brompton on the marked. The tensioner come with a stainless steel spring that replace the original steel spring, and a pivot bolt in titanium.

The tensioner is black anodized to give it a wear resistant and corrosion resistant surface. 
The tensioner consist of 1 chain tensioner arm, 1 tensioner base, 2 jockey pivot bolts, 1 pivot bolt and 1 spring.

Weight:  124 grams including spring and privot bolt.




USD 164.00

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