Surly Grappler frame set – new colour: Caramelised Copper
Description
The Surly Grappler in Caramelised Copper features a warm, robust copper hue with a subtle metallic finish. The new colour emphasises the frame’s adventurous character and is ideal for gravel riding and bikepacking. Durable, eye-catching and perfect for riders looking for a distinctive bike.
Sizes: XS, S, M, L, XL
Please enquire about current availability
Compatible headset: Cane Creek
The Surly Grappler frameset is a specially designed trail bike for drop-bar enthusiasts – perfect for bikepacking, singletrack and fire roads.
Inspired by decades of creative customisation, the Grappler offers stable geometry and a comfortable handlebar position for challenging terrain and long rides.
Specifications:
Frame & Fork
• Frame material: 100 % Surly 4130 chromoly steel, Natch tubing
– Double-butted main frame
– TIG-welded
– Electrodeposition coating (E.D. Coating) for corrosion protection
• Fork material: 100 % Surly 4130 chromoly steel, Natch tubing
– Double-butted, tapered fork legs
– TIG-welded, E.D. coated
– Rigid fork, length: 420 mm
– Fork offset: 50 mm
– Axle-to-crown: 420 mm
🧩 Compatibility & Dimensions
• Designed for wheel size: 27.5 x 2.5"
• Alternative wheel size: 29 x 2.2"
• Tyre clearance:
– 27.5 x 2.8" with mudguards
– 27.5 x 3.0" without mudguards
– 29 x 2.1" with mudguards (front)
– 29 x 2.5" with mudguards (rear)
🔧 Axles & mounting dimensions
• Rear triangle: Gnot-Boost 145 mm
– 12 x 142 mm or 12 x 148 mm (Surly axle included)
– 10 x 135 mm with adapter (not included)
• Front axle: 15 x 110 mm (Surly axle included)
• Rear axle: 12 x 148 mm (Surly axle included)
⚙️ Component compatibility
• Head tube:
– Top: EC34/28.6
– Bottom: EC34/30
– Steerer tube: Ø28.6 mm
– Crown: Ø30 mm (1-1/8")
– Stem clamp: Ø28.6 mm
• Seatpost: Ø30.9 mm (dropper-compatible)
• Seat clamp: Ø33.1 mm
• Front derailleur: Ø34.9 mm High Direct Mount, top-pull
– Offset adapter required (not included)
• Bottom bracket: 73 mm BSA, threaded
• Chainring sizes (max.):
– 1x MTB: 36T
– 2x MTB: 36T/26T
– 1x Boost: 38T
– 2x Boost: 39/32T
🧳 Mounting points
• Bottle cage:
– 3-pack mounts at the top and bottom of the down tube
– Seat tube mounts (sizes S–XL)
• Fork mounts:
– 3-pack mounts on each fork leg
– Threaded eyelets for luggage racks at the top and bottom
• Mudguard mounts: available at the front and rear
