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If you are a 1X CX, gravel or road rider and can't afford to drop a chain, the Wolf Tooth GnarWolf™ braze-on chainguide is for you. Designed specifically around 1x wide/narrow chainrings like our patented Drop-Stop® chainrings, the GnarWolf will keep your chain glued to your chainring in the roughest and muddies of conditions. No other CX chainguide is as rigid or as easy to adjust as the GnarWolf! Refer to image on this page for installation and adjustment instructions.

The GnarWolf™ features:

  • Patent pending infinite chainline adjustment between 45mm and 51mm via an elliptical expanding mandrel. There are no shims required!  
  • Infinite vertical adjustement between 34t and 46t 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's adjustments.
  • All adjustments made with common 4 mm hex key.
  • Designed for the rigors of the muddiest CX course or roughest gravel riding, the Wolf Tooth engineers made this guide extremely stiff and strong while keeping it light at 44g.
  • Specific guide shaping is optimized for use with elliptical/oval and round chainrings.
  • Installation takes just a few minutes -- no need to remove your crank arms.
  • Patent pending chainline adjustment system.


  • Designed to fit on any bike with an integral braze-on mount. If you have a round seat tube with no braze-on mount, you can buy a braze-on adapter.
  • Minimum distance of 10 mm between crank and center of ring
  • Installation instructions shown in photos on this page.
  • Optimized for use with both Elliptical and Round Chainrings.
    • fits chainrings 34t-46t
  • For 1x use only

    Complementing products:

     Our patented Drop-Stop® chainrings

     Tech Specs:

    • Design and manufactured in Minneapolis, MN USA
    • Material 6061-T6 with stainless steel hardware
    • Colors - black
    • Designed to accommodate chainlines from approx. 45mm to 51mm.
    • For round chainrings 34t-46t or elliptical chainrings 34-46t
    • Note: braze-on mount is not at the same height on all bikes so max chainring size will vary somewhat depending on frame brand and model.
      • Weight - 44g