The DMR Simple Tension Seeker converts geared bikes to single speed and bolts into most vertical dropouts in minutes, tensioning the chain is simple, the STS is then securely clamped in place.

Designed to run with a geared chain, this limits the cost of going single speed on your existing geared mountain bike. Remove your shifters and mechs, fit the DMR STS behind your quick release (please note not for nutted axles) and you're ready to ride. 

Specifications:
Stainless Steel arm
PU Pulley
Sealed bearings
Mounts to QR Axle
Weight: 103g