CNC machined lightweight, less 18g off stock
Compatible to 22T cog (original max 17T) = 25% increase in gear range
Titanium tensioner spring.
Smooth surface treatment with multiple colors to match your style.
Listing only for one tensioner. Jocky wheels, hub or external 3 cogs modification kit not included (Shimano spec, up to 22T).
Modification Example : 12T – 16T – 22T
Original Brompton tensioner – 107g