This is a new " nov chain tensioner full set series " for Brompton folding bike.
(included nov Bearing Pulleys PRO ver2.0)
"[nov 268] nov chain tensioner full set / Silver" only supports
"2 SPEED & 6 SPEED"
It is made by nov design. They are the specialist on CNC process.
Basically, novdesign chase always light weight. No doubt on the weight.
<One Set Included>
Most of the products in novdesign are light weight line, that means it's more light but can be damaged easily.
Usually, a product for the light weight has to be treated well.
And really prohibit over torque for the light weight product.
So don't screw it too much at all!