SRAM FR5 w/Jagwire compression-less housing

483mm axle-to-crown x 47mm offset, 110mm hub spacing, tapered and butted straight blade, 4130 CroMoly. 51mmI.S. disc mount

Horizontal slotted with derailleur hanger; Surly “Gnot Boost” 135, 142, and/or 148mm hub spacing compatibility

The Karate Monkey was one of the first production 29ers. It put the 29˝ platform in front of a lot of people at a price within reach of many a bike nerd. Since then, 29” has become a full-blown category, with entire bike companies dedicated to the platform. In contrast to the old standard 26” wheels, 29˝ wheels have unique benefits: delivering increased traction, smoothing out terrain, carrying inertia, and generally fitting tall riders better.
The Karate Monkey helped set the standard for 29er geometry. While its tucked-in rear wheel keeps it nimble and maneuverable, its lack of shifting componentry keeps the bike simple — and the rider filled with a cathartic rage.
With a frame and fork made of custom-designed Surly CroMoly “’Natch” steel, the Karate Monkey delivers a resilient, lively, durable ride. The Karate Monkey frame has recently been updated to include features like internal dropper post routing, a new tubeset that uses the same trumpet tubes found on our Instigator 2.0, and a slight tweak in geometry that is more progressive and trail oriented. The Karate Monkey uses a horizontal dropout with a derailleur hanger spaced to what we call Gnot-Boost spacing. 10 x 135mm QR, 12 x 142, or 12 x 148 Boost™ will all work in the Karate Monkey frame. The frame uses a 44mm headtube for broad fork compatibility and is ED coated for an added layer of internal protection.
The Karate Monkey SS is the sensei for all of your single speed sensations.

MSRP
Where to Buy	$1,849 At Jenson USA $1,848 At Campfire Cycling See more
Category	Trail

Frame	Steel
	Steel
Wheels	Aluminum
Wheel Size	29″
	Hayes Mechanical Disc


	NX
Drivetrain	Single-speed
Brand Site
Summary	The Surly Karate Monkey SS is a 29″ steel frame rigid trail bike with modest components and hayes mechanical disc brakes.

Frame	Horizontal slotted with derailleur hanger; Surly “Gnot Boost” 135, 142, and/or 148mm hub spacing compatibility Tire Clearance: 3"
Fork	483mm axle-to-crown x 47mm offset, 110mm hub spacing, tapered and butted straight blade, 4130 CroMoly. 51mmI.S. disc mount
Bottom Bracket	73mm
Headset	Cane Creek
Stem	H.L. 4-bolt, 31.8mm
Handlebar	Answer Pro Taper
Saddle	WTB Volt Sport
Seatpost	H.L. 30.9mm Type: Rigid

Rear Derailleur	None
Front Derailleur	None
Crank	SRAM Nx 30t
Shifters	None
Cassette	Surly 17t cog w/Surly spacer kit
Chain	KMC X11
Brakes	Hayes Mx Comp Type: Hayes Mechanical Disc
Brake Levers	SRAM FR5 w/Jagwire compression-less housing

Rims	Alex Draw 2.1
Front Hub	Salsa 110mm, 15mm thru-axle, 32h
Rear Hub	Salsa 148mm, 12mm thru-axle, 32h
Tires	Maxxis Ardent 29 x 2.4, 60 tpi