Made in the USA, US Patent 10464635. Easy to install, no need to remove your crank arm, adjustments made with common 4mm hex key, loosen one skrew for easy chain removal without losing guide settings, and weighs only 44g. Infinite vertical adjustment between 34t and 46t for round and oval chainrings. 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. Patented infinite chainline adjustment between 45mm and 51mm via an elliptical expanding mandrel. No shims required. Designed specifically around 1x wide/narrow chainrings the GnarWolf will keep your chain glued to your chainring in the roughest and muddies of conditions. 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.

Date First Available: August 2, 2016. Best Sellers Rank: #108,626 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 33 ratings 4.6 out of 5 stars. : B06Y26SPML. Part Number: ?GNARWOLF-BRAZE. Manufacturer: ?Wolf Tooth Components. Number of Items: ?1. Color: ?Black. Brand Name: ?Wolf Tooth Components. Item Weight: ?0.04 Pounds. Item Dimensions LxWxH: ?4 x 2.5 x 1.5 inches. Package Weight: ?0.05 Kilograms. Item Package Dimensions L x W x H: ?5.55 x 2.6 x 1.02 inches.