The bike that started it all — the plus-size movement that is. The Krampus features Surly’s Gnot-Boost rear hub spacing of 145mm; compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle and 135mm quick-release hubs. Rolling on 29 x 3” tires, this bike can get you over just about anything you point it at.

100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube
The tubeset uses Surly custom trumpet tubes for greater stiffness and durability
Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru-axle, as well as 135mm with 10/12 washer
Internal dropper seatpost routing
E.D. coated for an added layer of internal frame protection
Clearance for 29 x 3" tires

Frameset

Frame

100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, E.D. coated

Fork

100% Surly Chromoly Steel, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated

Seatclamp

Surly stainless, 33.1mm

Drivetrain

Crankset

Shimano Deore MT510

Bottom Bracket

Shimano

Front Derailleur

N/A

Rear Derailleur

Shimano Deore RD-M6100

Cassette / Cog

OE 12-spd, 11-51t

Chain

KMC X12 Anti-Rust

Components

Grips / Bar Tape

Velo Black

Handlebar

Salsa Rustler 31.8

Stem

Kalloy 31.8

Headset

Cane Creek

Rear Shifter

Shimano Deore SL-M6100

Brake & Rotors

Avid BB5 mechanical brakes, 180F/160R

Brake Levers

SRAM FR5

Saddle

Selle Italia

Seatpost

Kalloy, 30.9, 400

Wheels

Front Hub

Novatec 15x110, 32h, 6-bolt

Rear Hub

Novatec 12x148, 32h, 6-bolt

Rims

WTB ST i40 TCS 2.0

Tires

Surly Dirt Wizard 29 x 3", 60tpi, Tubeless Ready

Tubes

included

Surly Bikes

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