NEW Surly Karate Monkey Steel Rigid Mountain Bike - Snow Mold White - 210000059449
The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset and Surly’s Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.
Features
- 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube
- The tubeset uses the same trumpet tubes found on Instigator 2.0 frame
- Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142, 148 12mm thru, as well as 135mm w/ 10/12 washer
- Internal dropper seatpost routing with 30.9mm seat tube ID
- Clearance for 29 x 2.55 or 27.5 x 3 tires
- Complete Bike Weight: 31 lb. 12 oz. for Medium
Specifications
- Frame: Surly Karate Monkey - 4130 Chromoly, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, ED coated
- Fork: Surly Karate Monkey - 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
- Color: Snow Mold White
- Rear Derailleur: Shimano Deore M6100 SGS
- Cassette: SunRace CSMZ800, 11-51t, 12-spd
- Chain: KMC X12 Anti-Rust
- Crankset: Shimano MT511, 30T
- Bottom Bracket: Shimano MT501, BSA
- Shifter: Shimano Deore M6100
- Brakes and Rotors: Tektro HD-M275/HD-M276, 2 piston, Tektro 180/160, 6-Bolt
- Headset: Cane Creek
- Stem: Promax DA-296, 31.8mm
- Handlebar: Salsa Rustler
- Grips / Bar Tape: Velo Black
- Seatpost: Promax SP-2019, 30.9mm
- Saddle: WTB Volt Medium
- Front Hub: Novatec 15x110mm, 32h
- Rear Hub: Novatec 12x148mm, 32h
- Rims: WTB ST i40 TCS 2.0 27.5"
- Tires: Surly Dirt Wizard 27.5 x 3", 60 tpi, Tubeless Ready
- Spokes: 14G Black
What our Experts Think
- Highly versatile steel hardtail platform designed for trail riding, bikepacking, commuting, and off-road exploration.
- Chromoly steel frame delivers a durable, smooth-riding feel that excels on rough trails and long adventure rides.
- 29" wheel compatibility supports efficient rolling over obstacles, while 27.5+ compatibility increases traction and comfort options.
- Rigid fork setup prioritizes simplicity, low maintenance, and direct trail feedback for confident handling.
- Progressive, adventure-ready geometry balances stability on descents with responsive control in technical terrain.
- Wide tire clearance allows high-volume tires for improved grip, comfort, and all-season capability.
- Multiple mounting points make it an excellent platform for bikepacking builds and utility setups.
- “Snow Mold White” finish gives it a clean, minimalist look that suits both rugged and urban environments.
Q&A
Q: What type of riding is the Surly Karate Monkey designed for?
A: The Surly Karate Monkey is a versatile steel hardtail mountain bike built for trail riding, bikepacking, commuting, and singletrack exploration with a focus on adaptability.
Q: What material is the frame made from?
A: It uses 4130 Chromoly steel (Surly Natch tubing), offering durability, comfort, and a forgiving ride feel on rough terrain.
Q: What wheel size does it support?
A: The Karate Monkey is highly adaptable and can run both 27.5”+ and 29” wheels depending on build preference and terrain needs.
Q: Is this a rigid or suspension setup?
A: This version is a rigid build, meaning it uses a steel fork for simplicity, low maintenance, and direct trail feedback.
Q: What makes the Karate Monkey unique?
A: Its flexible geometry and multi-wheel compatibility make it a true “do-it-all” platform for riders who want one bike that can handle many roles.
Q: Does it support bikepacking and cargo setups?
A: Yes. It includes multiple mounting points for racks, bottles, and gear, making it a strong choice for touring and off-road bikepacking.
Q: What type of terrain is it best for?
A: It performs well on singletrack, gravel, forest roads, and urban terrain, balancing trail capability with everyday usability.
Q: What is special about the “Snow Mold White” color?
A: It is a clean, minimalist white finish that highlights the frame’s classic steel design and utilitarian character.
Q: Who is this bike best for?
A: Riders who want a durable, simple, and highly adaptable steel mountain bike for trail riding, commuting, and adventure cycling.
Maintenance Tips
Damage 
Loss 
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