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

Frameset

• 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

Components

• Seatpost Clamp
  • Surly stainless, 33.1mm

Frame Specs

• Design Wheel/Tire Sizes
  • 27.5 x 3.0"
    
• Max Tire Outer Diameter
  
  • 29 x 2.5"
  • Different tire and rim combinations will result in different clearances. Depending on drivetrain configuration, tire clearance may be limited by the chain and not the frame. For suspension fork tire clearance, please reference the fork manufacturer's website.
    
• 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 Spacing
  • "Gnot-Boost" 145mm
    
• Rear Brake (Rotor)
  • Disc - 51mm I.S. (203mm max rotor)
• Front Brake (Rotor)
  • Disc - 51mm I.S. (203mm max rotor)
    
• Headset - Upper
  • ZS44/28.6
    
• Headset - Lower
  • EC44/40
• Front Spacing
  • 15 x 110mm (Surly axle included)
    
• Crankset (Max Ring)
  • 1x (Mtn): 28T
  • 2x (Mtn): 24/34T
  • 1x (Boost): 32T
  • 2x (Boost): 24/36T 
  • Listed chainring clearance is worst-case scenario. Clearances vary widely depending on components and configurations.