Surly "Grappler" MTB Frame + Fork Set - 27.5 Inch
- Weight : 3.5kg / 7.72lbs
- Packaging Unit: 1 Set
- Product ID (PID): 44843
- Product safety
Weight
Source: BMX Glossary
Printed: 10/22/2026
The Surly "Grappler" MTB Frame + Fork Set - 27.5 Inch is Surly's trail bike tailored for drop bars: the geometry is built first around a stable, comfortable drop bar hand position, and the trail geometry underneath rides playfully on mixed terrain.
Room for big tires and mounts for gear on frame and fork make it a bike for day trips and overnighters. Gnot-Boost spacing for 142 and 148 mm hubs, thru axles, stealth dropper routing and dropouts for single speed or internal gear hubs.
Facts: Surly "Grappler" MTB Frame + Fork Set - 27.5 Inch
- Wheel size: 27.5" or 29", designed around 27.5 x 2.5", alternatively 29 x 2.2"
- Material: 100% Surly Chromoly (Natch tubing), double-butted main triangle, TIG welded, E.D. coated; Dinner Fork in 4130 chromoly
- Geometry:
- Reach: 381 mm (XS), 420 mm (M)
- Stack: 585 mm (XS), 623 mm (M)
- Effective toptube (TT): 560 mm (XS), 610 mm (M)
- Headtube length: 160 mm (XS), 200 mm (M)
- Seattube length: 316 mm (XS), 437.2 mm (M)
- Wheelbase: 1057 mm (XS), 1109 mm (M)
- Standover (SO): 719 mm (XS), 795 mm (M)
- Chainstay (CS): 425 mm
- Headtube angle (HA): 69.5°
- Seattube angle (SA): 73°
- BB drop: 50 mm - Seat clamp: 33.1 mm, Surly Stainless (included)
- Bottom Bracket: BSA 73 mm, threaded
- Seatpost (dropper):
- Diameter: 30.9 mm
- dropper post compatible, stealth routing - Dropouts: "Gnot-Boost" 145 mm: 12 x 142 mm or 12 x 148 mm thru axle (Surly axle included), 10 x 135 mm with adapter washers; front 15 x 110 mm (axle included); single speed and internal gear hubs possible
- Brake type: disc brake
- Brake mount: IS 51 mm, front and rear up to 203 mm rotor
- Headset: EC34/28.6 upper, EC34/30 lower, 1 1/8" straight steerer
- Features:
- trail bike with geometry designed around drop bars
- frame clearance: 27.5 x 3.0" without, 27.5 x 2.8" with fenders, 29 x 2.1" (front axle position) or 29 x 2.5" (rear axle position) with fenders
- rigid fork, not suspension corrected
- Three-Pack mounts on the upper and lower downtube and both fork blades, seat tube bottle mounts (S to XL)
- front derailleur: high direct mount top pull (34.9 mm) - Contains: 1 frame, 1 fork (Dinner Fork, 420 mm axle-to-crown, 50 mm offset), front and rear thru axles, 1 seat clamp





















































