Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals

2025 Surly

Karate Monkey Front Suspension

A 27.5″ steel frame hardtail trail bike with upper mid-range components.
Compare the full range

Manufacturer Price

$2,599
FrameSteel
SuspensionHardtail, 140mm
ForkRockShox 35 Gold RL
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetXT, Deore
BrakesTektro Gemini Hydraulic Disc
View on surlybikes.comLearn about Surly
Similar Bikes
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Karate Monkey Front Suspension
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

22 mph

Karate Monkey Front Suspension

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
XS

4'9" – 5'3"

SM

5'1" – 5'7"

MD

5'4" – 5'11"

LG

5'8" – 6'4"

XL

6'0" – 6'8"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Price History
Geometry
Specs
Build
Frame

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

BB StandardBSA, 73mm, Threaded

Fork

RockShox 35 Gold RL, 27.5", 15 x 110mm, 140mm travel, 44mm offset

Travel140mm

Spring TypeAir

Bottom Bracket

73mm threaded (1.37" x 24TPI)

Headset

Cane Creek

Stem

Promax 31.8mm

Handlebar

Salsa Rustler

Saddle

WTB Volt

Seatpost

Ø30.9mm

TypeRigid

Groupset
Rear Derailleur

Shimano Deore XT M-8100

Front Derailleur

N/A

Crank

Shimano Deore M-6100, 30t

Shifters

Shimano Deore XT, 12-spd

Cassette

OE 12-spd, 11-51t

Chain

KMC X12 Anti-Rust

Brakes

Tektro Gemini HD-M520

TypeTektro Gemini Hydraulic Disc

Brake Levers

Tektro Gemini HD-M520

Wheels
Rims

WTB ST i35 TCS 2.0 27.5"

Front Hub

Novatec 15x110mm, 32h

Rear Hub

Novatec 12x148mm, 32h

Tires

Front: Surly Dirt Wizard 27.5 x 2.8", 60tpi, Tubeless Ready, Rear: Surly Dirt Wizard 27.5 x 2.8", 60tpi, Tubeless Ready

Disc Rotors

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

Rider Notes
Riders Also Viewed

First added April 18

Last updated May 30