Grappler is a drop-bar trail bike built for single-track sessions, all-day dirt rides, and bikepacking excursions. 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) Specs: Build Kit Frameset Frame Surly Grappler - 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated Color Purple Dust Bunny Fork Surly Dinner Fork - 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated Components Headset Cane Creek 40 Seatpost Clamp Surly Stainless 33.1 Seatpost TranzX YSP15, 30.9, 100mm travel Stem Promax DA-296, 31.8mm Grips/Bar Tape Black Cork Saddle WTB Volt Handlebar Salsa Cowchipper Drivetrain Front Derailleur N/A Rear Derailleur microSHIFT ADVENT X Cassette microSHIFT ADVENT X, 11-48t, 10-spd Chain KMC X10 Crankset Samox, 32t Shifter microSHIFT ADVENT X Brake Levers microSHIFT ADVENT X Brake Calipers Tektro Mira Bottom Bracket Samox BSA Rotors Tektro Front: 180mm, Rear: 160mm Wheels Front Tire Teravail Ehline, 27.5 x 2.5", Light and Supple, Tan Sidewalls Rear Tire Teravail Ehline, 27.5 x 2.5", Light and Supple, Tan Sidewalls Front Hub Novatec 15 x 110mm, 6-bolt, 32h Rear Hub Novatec 12 x 148mm, 6-bolt, 32h Spoke 14G Black Rim WTB ST i40 TCS 2.0 Weight Complete Bike 30 lb. 5 oz. for Medium *Specifications are subject to change without notice Frame specs: 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 Rigid Fork Length 420mm Fork Offset 50mm Axle to Crown 420mm Rear Spacing "Gnot-Boost" 145mm12 x 142mm or 12 x 148mm (Surly axle included)10 x 135mm with Surly 10/12 Adapter Washers (not included) Rear Axle Size 12 x 148mm (Surly axle included) Front Brake (Rotor) Disc - 51mm I.S. (203mm max rotor) Headset - Upper EC34/28.6 Headset - Lower EC34/30 Front Axle Size 15 x 110mm (Surly axle included) Steerer Tube Ø28.6mm Crown Race Ø30mm (1-1/8") Stem Clamp Ø28.6mm Seatpost Ø30.9mm Dropper Post Compatible Yes Seatpost Clamp 33.1mm Front Derailleur Clamp Ø34.9mm Front Derailleur Type High direct mount top-pull (Ø34.9mm) 26mm offset adapter (not included) for 142 or 135mm rear hub spacing; 29mm offset adapter (not included) for 148mm rear hub spacing Bottom Bracket 73mm BSA, threaded Crankset (Max Ring) 1x (mtn): 36T / 2x (mtn): 36/26T / 1x (Boost): 38T / 2x (Boost): 39/32T Bottle Mounts 3-pack mounts on upper and lower downtube; seat tube bottle mounts on frame sizes S–XL Fork Mounts 3-pack mounts on each fork blade, upper and lower threaded rack mounts Front Fender Mounts Yes Rear Fender Mounts Yes
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