The Surly Krampus redefined trail riding when it first hit the market as the original “plus” bike. With high-volume, large-diameter tires, it transformed the way riders experience traction, control, and confidence on technical terrain — all without sacrificing speed. This steel-framed trail machine proves that big tires don’t mean slow, and it’s perfect for riders looking to tackle chunky roots, rock gardens, and steep descents with ease.
Built from 100% Surly Chromoly steel, the Krampus offers a supple, durable ride with plenty of compliance for aggressive trail riding. Modern trail standards like dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, and thru-axles make it adaptable to contemporary components, while suspension-corrected geometry ensures forks track properly across all terrain. With clearance for 29" × 3" tires and compatibility with most mountain bike standards, it’s the ultimate “parts-bin” bike — except rim brakes, which aren’t allowed.
Whether you’re exploring technical singletrack or enjoying extended trail adventures, the Krampus delivers confidence, control, and a surprisingly fast ride on big tires.
FEATURES
Modern trail-ready geometry: dropper post compatible, 44mm headtube, Gnot-Boost rear spacing, thru-axles
Suspension-corrected fork for proper handling
Clearance for 29" × 3" tires
Compatible with most MTB standards (except rim brakes)
High-volume tires improve traction and ride experience without slowing you down
SPECIFICATIONS
Intended Use: Trail
Wheel Size: 29"
Braking System: Mechanical Disc (Avid BB5)
Frame Material: Surly Chromoly Steel
Fork Material: Surly Chromoly Steel
Weight (Approx.): 13.23 kg
COMPONENTS
Frame: Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated
Fork: Surly Chromoly Steel, double-butted tapered blades, TIG welded, E.D. coated
Bottom Bracket: Shimano
Crank: Shimano Deore MT510
Chain: KMC X12 Anti-Rust
Shifters: Shimano Deore SL-M6100
Rear Derailleur: Shimano Deore RD-M6100
Handlebar: Salsa Rustler 31.8
Stem: Kalloy 31.8
Saddle: Selle Italia
Seatpost: Surly Stainless 33.1 mm
Wheels: WTB ST i40 TCS 2.0, front & rear
Tires: Surly Dirt Wizard 29 × 3", 60 TPI, Tubeless Ready
Brakes: Avid BB5 Mechanical Disc, 180F / 160R
