Wolf Tooth GnarWolf Chainguide ISCG-05 Mount rev2

Wolf Tooth GnarWolf Chainguide ISCG-05 Mount rev2 Info

Wolf Tooth GnarWolf Chainguide ISCG-05 Mount rev2 is built for riders who refuse to gamble with chain security when the terrain turns rough. Designed specifically for bikes with an ISCG-05 mount and 1x drivetrains, the GnarWolf delivers rock-solid chain retention for mountain biking, aggressive gravel, cyclocross, and even downhill conditions.

At the heart of the rev2 design is Wolf Tooth’s GuideLock quick adjustment system, offering up to 8mm of chainline adjustment with no shims required. Vertical adjustment is continuous, accommodating a wide range of chainring sizes, while the guide’s shape is carefully optimized to work equally well with both round and oval chainrings. Once set, the guide stays put—even in deep mud, high-speed chatter, and hard impacts.

Serviceability is just as thoughtful as performance. A single bolt allows the guide to flip out of the way for fast chain removal without losing any of your carefully dialed-in adjustments. All setup and tuning is handled with a common 4mm hex key, and installation takes only minutes with no need to remove crank arms.

Specs at a Glance

• Weight: 46g.
• Material: 6061-T6 aluminum with stainless steel hardware and glass-filled nylon guide head.
• Adjustment: 8mm chainline adjustment via GuideLock system.
• Vertical Range: 28–36T round chainrings or 28–34T oval chainrings.
• Manufacturing: Made in the USA.

Compatibility & Fit Notes

• Mount: ISCG-05 only.
• Drivetrain: 1x systems only.
• Chainrings: Optimized for both round and oval designs.
• Clearance: Minimum 10mm between crank and center of chainring.
• Not Compatible With: Crankset-mounted bashrings.

Known Frame Exceptions

• Will Not Fit: Ibis Mojo 3, Ripmo, Ripley; Evil The Following; Santa Cruz Tallboy and Nomad.
• Special Fit: Specialized Stumpjumper (2016–2017) requires 1mm spacers between the frame’s ISCG-05 mounts and the guide.

Final Take

The GnarWolf ISCG-05 rev2 is a race-proven chainguide for riders who demand absolute reliability from their drivetrain. Lightweight, incredibly stiff, and easy to adjust, it’s a smart insurance policy for any 1x setup that sees real-world abuse.