A Trail Bike Tailored for Drop Bars Off-road enthusiasts have been Frankensteining drop bars onto trail bikes for decades, so we designed the Grappler to scratch that itch with a little more precision. Engineered first and foremost around a stable and comfortable drop-bar hand position, its trail-ready geo provides a spirited ride on mixed terrain. Cleared for girthy tires and decorated with an array of mounts for hauling your daily provisions and overnight gear, the Grappler is ready to take you and your paraphernalia down that overgrown fire road for an extrasensory experience. There’s nothing to be afraid of. Probably. Featuring Surly’s versatile Gnot-Boost spacing, allowing riders to run 142mm or Boost 148mm rear hubs; thru-axles; stealth dropper post routing; non-suspension corrected Custom dropouts ready to run single-speed or internally geared hub setups Seatstay-mounted bottle bosses, plus three-pack mounts at the top and bottom of the down tube Frame tire clearance: 27.5 x 2.8" w/ fender, 27.5 x 3.0" w/o fender, 29 x 2.1" w/ fender (front axle position, 29 x 2.5" w/ fender (rear axle position) Frameset Frame Surly Grappler - 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated Fork Surly Dinner Fork - 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated Components Seatpost Clamp Surly Stainless 33.1 Frame Specs Design Wheel/Tire Sizes 27.5 x 2.5" Alternate Wheel/Tire Sizes 29 x 2.2" Frame Construction 100% Surly Chromoly Steel frame, Natch tubing, double-butted main triangle, TIG welded, E.D. coated Fork Construction 100% Surly Chromoly Steel fork, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated Rear Spacing "Gnot-Boost" 145mm 12 x 142mm or 12 x 148mm (Surly axle included) 10 x 135mm with Surly 10/12 Adapter Washers (not included) Rear Brake (Rotor) Disc - 51mm I.S. (203mm max rotor) Front Brake (Rotor) Disc - 51mm I.S. (203mm max rotor) Headset - Upper EC34/28.6 Headset - Lower EC34/30 Front Spacing 15 x 110mm (Surly axle included) Crankset (Max Ring) 1x (mtn): 36T 2x (mtn): 36/26T 1x (Boost): 38T 2x (Boost): 39/32T
