Surly Karate Monkey Bike
Surly Karate Monkey Bike
Surly Karate Monkey Bike
Surly Karate Monkey Bike

Surly Karate Monkey Bike

$ 2,379.97
$ 2,379.97
$ 2,649.00
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Shipping calculated at checkout.
SKU BK3498
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Details

Multipurpose Hardtail Mountain Bike

Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations.

Originally designed as a 29er (and the frame that helped spark the 29” wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a shit-eating grin, of course.

  • Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork
  • Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though)
  • Clearance for 29” x 2.5” or 27.5” x 3” tires
 

FRAME SPECS:

Frame Construction
4130 Chromoly, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, ED coated
Fork Construction
4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
Rear Dropout Configuration
Horizontal slotted with optional vertical dumpout
Rear Hub Spacing
"Gnot-Boost" 145mm
12 x 142mm or 12 x 148mm (Surly axle included)
10 x 135mm with Surly 10/12 Adapter Washers (not included)
Front Hub Spacing
15 x 110mm (Surly axle included)
Rear Brake
Disc - 51mm I.S. (203mm max rotor)
Front Brake
Disc - 51mm I.S. (203mm max rotor)
Head Tube
Ø44mm
Steerer Tube
Ø28.6mm (1-1/8")
Crown Race
Ø30mm (1-1/8")
Stock Headset Upper (S.H.I.S)
ZS44/28.6
Stock Headset Lower (S.H.I.S)
EC44/30
Seat Collar
Ø33.1mm
Seatpost
Ø30.9mm
Front Derailleur (Clamp)
High direct mount top-pull (Ø34.9mm)
26mm offset adapter (not included) for 142 or 135mm rear hub spacing
29mm offset adapter (not included) for 148mm rear hub spacing
Max Chainring (CL) [3]
1x (Mtn):  28T
2x (Mtn):  24/34T
1x (Boost):  32T
2x (Boost):  24/36T
Bottom Bracket
73mm threaded (1.37" x 24TPI)
Tire Clearance Frame [1]/[2]
27.5 x 3.0”
29 x 2.5"
Tire Clearance - Rigid Fork [1][5]
29 x 3.0”
Rigid Fork Spec
483 x 47mm
Max Suspension Fork Length [4]
551 x 51mm (27.5+ 140mm)
Bottle Mounts Frame
1 Standard + 1 Three-Pack (XS - M)
2 Standard + 1 Three-Pack (L - XL)
Bottle Mounts Fork
2 Three-Pack
Rack Mounts Frame
Yes (upper and lower threaded)
Rack Mounts Fork
Yes (upper, lower, and mid-blade threaded)
Fender Mounts Frame
Yes
Fender Mounts Fork
N/A
Other Features
Internal dropper post routing compatible

 

GEOMETRY:

Frame Construction

4130 Chromoly, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, ED coated

Fork Construction

4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated

Rear Dropout Configuration

Horizontal slotted with optional vertical dumpout

Rear Hub Spacing

"Gnot-Boost" 145mm
12 x 142mm or 12 x 148mm (Surly axle included)
10 x 135mm with Surly 10/12 Adapter Washers (not included)

Front Hub Spacing

15 x 110mm (Surly axle included)

Rear Brake

Disc - 51mm I.S. (203mm max rotor)

Front Brake

Disc - 51mm I.S. (203mm max rotor)

Head Tube

Ø44mm

Steerer Tube

Ø28.6mm (1-1/8")

Crown Race

Ø30mm (1-1/8")

Stock Headset Upper (S.H.I.S)

ZS44/28.6

Stock Headset Lower (S.H.I.S)

EC44/30

Seat Collar

Ø33.1mm

Seatpost

Ø30.9mm

Front Derailleur (Clamp)

High direct mount top-pull (Ø34.9mm)
26mm offset adapter (not included) for 142 or 135mm rear hub spacing
29mm offset adapter (not included) for 148mm rear hub spacing

Max Chainring (CL) [3]

1x (Mtn):  28T
2x (Mtn):  24/34T
1x (Boost):  32T
2x (Boost):  24/36T

Bottom Bracket

73mm threaded (1.37" x 24TPI)

Tire Clearance Frame [1]/[2]

27.5 x 3.0”
29 x 2.5"

Tire Clearance - Rigid Fork [1][5]

29 x 3.0”

Rigid Fork Spec

483 x 47mm

Max Suspension Fork Length [4]

551 x 51mm (27.5+ 140mm)

Bottle Mounts Frame

1 Standard + 1 Three-Pack (XS - M)
2 Standard + 1 Three-Pack (L - XL)

Bottle Mounts Fork

2 Three-Pack

Rack Mounts Frame

Yes (upper and lower threaded)

Rack Mounts Fork

Yes (upper, lower, and mid-blade threaded)

Fender Mounts Frame

Yes

Fender Mounts Fork

N/A

Other Features

Internal dropper post routing compatible