Krampus Frameset - 29" Steel Prickly Pear Mountain Bike Frame
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Experience the pioneering design that ignited the plus-size mountain bike movement with this exceptional 29" steel frameset. Crafted from 100% premium Surly 4130 CroMoly steel, the frame and fork feature a double-butted main triangle and a robust 44mm headtube, ensuring durability and responsive handling on rugged trails. The updated tube-set incorporates the same trumpet tubes found on the acclaimed 2017 Karate Monkey frame, enhancing strength without compromising weight.

  • Surly’s innovative Gnot-Boost rear hub spacing of 145mm is compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle, and 135mm quick-release hubs, offering versatile wheel options.
  • Adjustable Gnot-Boost rear dropouts provide precise alignment for various drivetrain setups.
  • Internal routing for dropper seatposts supports seamless integration and clean aesthetics.
  • The 30.9mm seat tube diameter accommodates a wide range of seatpost options.
  • Designed to fit up to 29 x 3.0” tires, this frame delivers exceptional traction and stability across diverse terrains.

Surly

Krampus Frameset - 29" Steel Prickly Pear Mountain Bike Frame

$1,099.00
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Size Guide

No size chart available for this product.

Low stock (1 left)
PRO SETUP Expert Assembly 95% Ready to ride out of the box.
CERTIFIED Master Mechanic Assembly Precision dialed before shipping.
SINCE 1992 Over 30 Years of Trust Decades of cycling expertise.

SKU: 04-002344

Experience the pioneering design that ignited the plus-size mountain bike movement with this exceptional 29" steel frameset. Crafted from 100% premium Surly 4130 CroMoly steel, the frame and fork feature a double-butted main triangle and a robust 44mm headtube, ensuring durability and responsive handling on rugged trails. The updated tube-set incorporates the same trumpet tubes found on the acclaimed 2017 Karate Monkey frame, enhancing strength without compromising weight.

  • Surly’s innovative Gnot-Boost rear hub spacing of 145mm is compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle, and 135mm quick-release hubs, offering versatile wheel options.
  • Adjustable Gnot-Boost rear dropouts provide precise alignment for various drivetrain setups.
  • Internal routing for dropper seatposts supports seamless integration and clean aesthetics.
  • The 30.9mm seat tube diameter accommodates a wide range of seatpost options.
  • Designed to fit up to 29 x 3.0” tires, this frame delivers exceptional traction and stability across diverse terrains.
SPECIFICATIONS

Frameset

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

Color: Prickly Pear

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

Components

Seatpost Clamp: Surly Stainless, 33.1mm

Drivetrain

(Details not provided – can add if available)

Wheels

Front Axle: 15 x 110mm (Surly axle included)

Rear Axle: 12 x 142mm or 12 x 148mm (Surly axle included)

Weight

Frame: 9 lb. 10 oz. (Medium)

GEOMETRY
Size Small Medium Large X-Large
A. Effective Top Tube 23.03 24.02 25 25.98
B. Stand Over 30.31 31.38 32.48 33.58
C. Reach 15.91 16.77 17.64 18.5
D. Stack 23.35 23.7 24.09 24.45
E. Total Seat Tube Length 14.49 16.5 18.5 20.51
F. Headtube Length 3.54 3.94 4.33 4.72
G. Headtube Angle
69.0
69.0
69.0
69.0
H. Seat Tube Angle
73.0
73.0
73.0
73.0
I. BB Drop 2.56 2.56 2.56 2.56
K. Chainstay Length 17.13 17.13 17.13 17.13
L. Fork Length Axle to Crown 19.02 19.02 19.02 19.02
M. Fork Offset 1.85 1.85 1.85 1.85
N. Wheelbase 42.8 43.82 44.8 45.83
Crank Arm Length
Handlebar Width
Recommended Rider Height
Stem Length