DMR Viral lower double chain device (ISCG05) – tough and fully adjustable - 28t to 38t
Tough stainless steel lower section adjust independently allowing fine tuning to suit frame and set-up.
Nylon double pulley allows use of a double chainring setup.
DMR Viral double lower chain device to fit frames with ISCG05 mounts (adapter if required available to buy separately).
Only 130 grams.