Have you wanted a good quality tensioner but couldn't run the MKS one because it wouldn't fit your thick BMX frame? They've heard your complaints.
This compact chain tensioner may be small but it is top quality. Due to the ingenious use of a double-threaded screw, it adjusts from 1cm in reach all the way up to3cm. New design uses a 4mm wrench. Fits drop-outs up to 8mm thick or just over 1/4" - like those on most Aluminum and Steel BMX frames! Made in Japan by Mikashima ( MKS). One tensioner per package.