Genuine Oset Chain/Sprocket Upgrade Kit.
This kit upgrades the drive train on the 16.0 24v 2012/2013/2014 & 16.0 36v 2012/2013 models from the standard 9mm chain/sprockets for the much stronger 12mm set-up.
Kits contains a Heavy Duty 12mm Chain, 9T Front Sprocket and a 68T Rear Bolt On Sprocket.
Rear sprocket supplied is now the "Solid" version.