Karate Monkey Front Suspension Bike

Karate Monkey Front Suspension Bike


  • 100% Surly 4130 chromoly steel frame, double-butted main triangle and 44mm headtube
  • The tubeset uses Surly custom trumpet tubes for greater stiffness and durability
  • Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142 and 148 x 12mm thru, as well as 135mm w/ 10/12 washer
  • RockShox Sektor RL suspension fork with 140mm travel
  • TranzX SP15 dropper post with stealth routing; 80mm travel on XS/SM 120mm travel on MD/LG/XL
  • Clearance for 27.5 x 3 or 29 x 2.55″ tires

Bicycles cannot be shipped must be picked up at our physical storefront in Urbana, Illinois. So we can ensure your bicycle will have the proper fit.

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The Karate Monkey Front Suspension bike features a RockShox Sektor RL suspension fork with 140mm travel, and paired with a dropper post out the box. Progressive trail geometry combined with Surly’s Gnot-Boost rear dropout system, deliver a versatile bike with the ability to swap hubs and wheel sizes. If you want to round-house kick some trail right in the face, the Karate Monkey is your sled.

Frame“Surly 4130 Cro-Moly Steel. Custom double butted externally flaired tubing. Horizontal slotted with derailleur hanger
Fork“RockShox Sektor RL 27.5 140mm travel, 51mm offset, 15X110 front axle, Disc.
CranksetSRAM Descendant 32T
Bottom BracketSRAM Powerspline
Front Derailleurn/a
Rear DerailleurSRAM NX Eagle
Cassette / CogSRAM Eagle 11-50t
ChainSRAM NX Eagle
Grips / Bar TapeVelo Single lock-on
HandlebarSalsa Rustler 31.8mm
Stem“ProMax 31.8mm
HeadsetCane Creek
Front Shiftern/a
Rear ShifterSRAM NX Eagle
Brake LeversSRAM Level hydraulic
BrakesetSRAM Level hydraulic
Front RotorSRAM Centerline 180
Rear RotorSRAM Centerline 160
SaddleWTB Volt Sport
SeatclampSurly Stainless
Seatpost“TranzX SP15 dropper post 80mm travel on XS/SM 120mm travel on MD/LG/XL
Front Hub“110mm 15mm thru-axle, 32h”
Rear Wheel“148mm 12mm thru-axle, 32h”
Front Thru Axle / QRThru Axle
Rear Thru Axle / QRThru Axle
Tires“Surly Dirt Wizard 27 x 3, 60tpi

Additional information


Large, Medium, Small, X-Large, X-Small



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