If you're a 1X CX, gravel or road cyclist and you can't afford to drop a chain, the Wolf Tooth GnarWolf® braze-on chain guide is for you. Designed specifically around wide/narrow 1x chainrings, the GnarWolf will keep your chain glued to your chainring in the toughest, muddiest conditions. No other CX chain guide is as stiff or as easy to adjust as the GnarWolf.

Patented infinite chainline adjustment between 45 mm and 51 mm via an elliptical expanding mandrel. No shims required.

Infinite vertical adjustment between 34 and 46 teeth for round and oval chainrings

Loosen one screw to flip the guide out of the way for easy chain removal without losing any of the guide settings

All adjustments made with a common 4 mm hex key

Designed for the rigours of the muddiest CX course or roughest gravel riding, Wolf Tooth engineers have made this guide extremely stiff and strong whilst keeping it lightweight at 44 g.

The specific shape of the guide is optimised for use with elliptical/oval and round chainrings

Installation takes just minutes: no need to remove your cranks

Compatibility

Designed to fit any bike with an integrated braze-on mount. If you have a round seat tube without a braze-on mount, you can purchase a braze-on adapter

Designed to accommodate chainlines of approx. 45mm to 51mm

Minimum distance of 10 mm between crank and ring centre

See photos above as installation guide

Optimised for use with 34t-46t elliptical and round chainrings 

For 1x use only

Not compatible with crankset-mounted bashrings