Surly Karate Monkey Frameset - Organic Eggplant

With so many different types and sizes of tires now on the market, riders have begun to understand the effect that tire width has on overall wheel diameter, and with ample tire clearance, you can see the benefits of multiple wheel sizes all on one bike. 27+ tires have the same rolling diameter as a 29” wheel, yet you get all the traction and floatation benefits of extra-wide knobbies. And that’s just the tires

• Tubing: Surly 4130 CroMoly Steel ‘Natch tubing
  
• Rear Dropouts: Horizontal slotted with derailleur hanger; Surly “Gnot Boost” 142 or 148mm hub spacing compatibility, threaded fender eyelets
  
• Brake Compatibility: 51mm I.S. disc caliper mounts, 180mm max rotor size
  
• Braze-ons/extras: Dual bottle-mounts on XS and S, three bottle-mounts on M–XL, dropper post routing, rack and fender mounts
  
• Seatpost diameter: 30.9mm
  
• Seatpost clamp diameter: 33.1mm (Surly stainless included)
  
• Headtube: 44mm
  
• Front Derailleur: 34.9mm, high direct-mount (adapter included)
  
• Bottom bracket shell: 73mm
  
• Chainring Clearance: 32t Boost 1x, 24/36t Boost 2x, 28t 1x, 24/34t 2x
  
• Tire Clearance: 27.5 x 3.0" and 29 x 2.5", individual tire and rim combos affect tire clearance
  
• Fork: 140mm travel suspension fork compatible (547mm A-to-C max)
  
• Color: Black