SURLY KARATE MONKEY

Surly Karate Monkey

Highly versatile trail and adventure bike – and an icon!

The Surly Karate Monkey is an icon if the MTB world, having been one of the bikes that sparked the whole 29″ wheel revolution.  It’s a true multipurpose hardtail – is it a cross country marathon bike, a trail bike, a bikepacking rig, or an adventure racer?  The simple answer is yes – to everything!  The Karate Monkey has done everything from winning the Tour Divide and Iditarod to round the world expeditions to conquering local trail centres.  It’s one bike that genuinely does deserve to be called an icon – and its story is only just unfolding, as Surly continue to develop the Karate Monkey as their premier all-purpose hardtail.

The Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever set up or adventure you’ve got in mind.  According to Surly it can be set up in approximately 487 different configurations.  We’ve no idea how they’ve come up with that figure, but it illustrates the range of applications that the Karate Monkey is not just capable of being put to, it shines at them too.

Originally designed as a 29er, the latest Karate Monkey has been re-designed to perform just as admirably as a 27.5+ rig as well, picking up of Surly’s design principle that their adventure orientated bikes should be adaptable to all riding styles and terrain conditions.  This dual capability allows you to pick your poison — provided your poison is having a really great time while wearing a permanent grin.

The Karate Monkey frameset is built with modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing (adaptable to all axle lengths from 135mm right up to 148mm Boost), thru-axles, suspension corrected steel fork (giving the option of running gthe standard rigid steel fork or a 140mm suspension fork up front) etc.

The frameset has clearance for up to 29” x 2.5” or 27.5” x 3” tyres, and features a huge number of braze-ons for carrying pretty much every form of luggage you can come up with, as well as mudguards if needed.

Frame Information

  • 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
  • Tyre Clearance Frame [1]/[2]:  27.5 x 3.0”; 29 x 2.5″
  • Tyre 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
[1] Different tire and rim combinations will result in different clearances.[2] Depending on drivetrain configuration, tire clearance may be limited by the chain and not the frame.[3] Listed chainring clearance is worst-case scenario. Clearances vary widely depending on components and configurations.[4] Suspension fork length listed at full extension (not at sag)[5] For suspension fork tire clearance, please reference the fork manufacturer’s website.

The Surly Karate Monkey comes to us as a frameset, for building up into a complete bike in our workshop using components of your choice.  And with a huge variety of build options the Karate Monkey can be tuned to ride exactly the mind of terrain you have in mind.

KARATE MONKEY

All Surly Karate Monkeys start out as a bare frameset initially, for building up into a complete bike with suitable components of your choice. Below are sample builds that we offer as standard Epic Escape specifications, and frequently use as a start point for custom quotations.

Surly Karate Monkey Deore 11s – from £1,819

Specification

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
HEADSET: M:Part
BOTTOM BRACKET: Shimano BB52
SHIFTER: Shimano M5100 Deore 11-speed
BRAKE LEVERS: Shimano M6100 Deore
FRONT BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
REAR BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
FRONT DERAILLEUR: n/a
REAR DERAILLEUR: Shimano M5100 Deore 11-speed, Shadow+, SGS long cage
CRANKSET: Shimano M5100 Deore 11-speed, 32T
CASSETTE: SunRace MX80 11-speed cassette, 11-50T
HANDLEBAR: PRO LT Riser
GRIPS: ODI Attack
STEM: PRO LT
SEATPOST: PRO LT
SADDLE: WTB Steel
WHEELS: Shimano MT600 Boost 29″ or Mavic Crossmax Boost 29″ (add £140 for HUNT Trail Wide 27.5″ or Crossmax XL 27.5″)
TYRES: Continental Mountain King Shieldwall 29″x2.3″ or 27.5″x2.8″
PEDALS: Not Include

COLOUR:  Black, Fools Gold, High Fibre Green

Surly Karate Monkey Deore 12s – from £2,069

Specification

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
HEADSET: M:Part
BOTTOM BRACKET: Shimano BB52
SHIFT/BRAKE LEVERS: Shimano M6100 Deore 12-speed
FRONT BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
REAR BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
FRONT DERAILLEUR: n/a
REAR DERAILLEUR: Shimano M6100 Deore 12-speed, Shadow+, SGS long cage
CRANKSET: Shimano M6100 Deore 12-speed, 32T
CASSETTE: Shimano Deore 10-51T or SunRace CSMZ91X Black 10-50T (add £50) 12-speed cassette
HANDLEBAR: PRO LT Riser
GRIPS: ODI Attack
STEM: PRO LT
SEATPOST: PRO LT
SADDLE: WTB Steel
WHEELS: HUNT Trail Wide 27.5″ 30mm Boost Microspline (add £25 for Mavic Crossmax XL Boost) – also available as 29-er wheels
TYRES: Continental Cross King Shieldwall 27.5″x2.8″
PEDALS: Not Included

COLOUR:  Black, Fools Gold, High Fibre Green

EPIC CYCLES

ESCAPE – EXPLORE – ADVENTURE