We take extra care to ensure your bike arrives ready to ride. Our meticulous build and testing process takes about 4 business days before your bike is ready to ship. This attention to detail guarantees that your bike will be easy to assemble on arrival. Please note that most bikes do not come with pedals. To make the most of your new bike right away, be sure to select a pair of pedals when checking out and we will include them with the build!The Karate Monkey Front Suspension bike features a Rock Shox 35 Gold RL A2 suspension fork with 140mm travel, and it's paired with a dropper post out the box. Progressive trail geometry and 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.
100% Surly Chromoly steel frame, double-butted main triangle and 44mm headtube
Adjustable rear dropouts with 145mm Gnot-Boost spacing. Works with 142 and 148 x 12mm thru, as well as 135mm w/ 10/12 washer
Clearance for 27.5 x 3 or 29 x 2.55" tires
RockShox 35 Gold RL A2 suspension fork with 140mm travel
The tubeset uses Surly custom trumpet tubes for greater stiffness and durability
TranzX YSP15 dropper post with stealth routing; 100mm travel on XS, 120mm travel on SM-XL
WARNING: Cycling involves risks. To ensure your safety, have your bike and its accessories assembled and serviced by a professional mechanic. Do not alter your bicycle or its components. Always adhere to the instructions and warnings provided, including those found on the manufacturer’s website. Inspect your bicycle thoroughly before each ride and always wear a helmet.
Specifications & Identifiers
Bike Type
27.5plus Hardtail, Hardtail, Hardtail 29er
Bottom Bracket
Shimano
Brake Rotors
Tektro 180mm/160mm
Brake Type
Disc
Brakes
Tektro Gemini HD-M520
Cassette
OE 12-spd, 11-51t
Chain
KMC X-12
Color
Orange, Peach Salmon Sundae
Crank
Shimano Deore FC-M6100-1, 30t
Fork
RockShox 35 Gold RL
Fork Type
Suspension Fork
Frame Material
Steel
Frame Type
Rigid
Front Axle Type
15mm Thru x 110mm
Front Derailleur
N/A
Front Shifter
N/A
Front Tire
Surly Dirt Wizard Tubeless Ready
Front Wheel
WTB ST i35 TCS
Grips
Velo
Handlebar
Salsa Rustler
Headset
Cane Creek
Rear Axle Type
12mm Thru x 145mm, 12mm Thru-axle
Rear Derailleur
Shimano XT M8100
Rear Shifter
Shimano Deore XT SL-M8100, 1x12
Rear Tire
Surly Dirt Wizard Tubeless Ready
Rear Wheel
WTB ST i35 TCS
Saddle
WTB Volt Sport
Seatpost
Trans-x Dropper
Stem
ProMax Alloy
TT (Effective)
565mm, 590mm, 615mm, 640mm, 665mm
Wheel Size
27.5" (650b), 29er
Peach Salmon Sundae - Large UPC
708752388482
Peach Salmon Sundae - Large MPN
04-001923
Peach Salmon Sundae - Medium UPC
708752388345
Peach Salmon Sundae - Medium MPN
04-001923
Peach Salmon Sundae - XL UPC
708752388628
Peach Salmon Sundae - XL MPN
04-001923
Tree Fort ID:
333222459743
Review Summary
LIKES
Tires (1),
Handling (1),
Brakes (1)
WORKS FOR
Downhill (1),
In-Town (1),
Trails (1),
Recreation (1)
DISLIKES
none
5.0 GEARS 1 review
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Customer Questions
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Owned quite a few MTBs over the last 30 years from full rigid to full squish but mostly hardtails, and from budget to high end, but never a steel MTB. The Kmonk has quickly become my fav mtb by a country mile.
I've only had the KMonk for a month now and have ridden it at least 5x a week from chunky dh trails, to sandy mountain wash trails & fire roads (aka "gravel"), and just riding around town on paved roads for exercise and recreation..
Not only is it capable across the board, the KMonk is surprisingly fast on pavement, terrific on the climbs off and on road while being pretty supple and comfortable to the point where it's become my go-to rig for all my riding except group road rides.
Some specifics on components etc after some dialing-in and breaking it in, so to speak:
Frame: Chromoly steel, natched tubing. First time on a steel mtb. Only other steel bike I've owned was as a young teen. It was an old Schwinn 10-speed. Love the feel of steel. Sturdy but compliant in all the right ways. Sure, a bit on the heavy side compared to my other mtbs, but I don't care much about bike weight other than the fact that I could lose a bunch of lbs myself before heading into weight weenie territory. Besides, it's a fantastic looking frame with the Peach Salmon Sundae color scheme (and name).
Bottom line is that the Karate Monkey (and Surly bikes in general) is where quality, capability, and durability meet a fun aesthetic.
Gearing: Shimano Deore XT shifting has been terrific. No problems at all thus far and I like the *harder* feel in shifting on mtb's.
Brakes: Tektro Gemeni HD-M520 provide excellent stopping power. Haven't put them in a situation where I've needed to smash on the levers. Same time, they've functioned flawlessly and responded quickly when asked. I feel confident about them.
Tires/Wheelset: The stock Surly Dirt Wizards are some good tires. I have a second set of tires (Teravail Warwicks) that I haven't used yet because I'm really happy with how well the DW's performed across the different terrains.
Rockshox 35mm Gold RL (140mm travel): High quality suspension fork to complement such a quality frame. Can't really go wrong Provides plenty of what I need with the 140mm of travel. I will be picking up a rigid KMonk fork just to switch out once in awhile.
TranzX YSP15 Dropper: This is the first mtb I've owned with a dropper post so I'm not sure how much I can say about it other than it eeded some adjusting and perhaps "breaking-in" and I haven't gotten it where it's worked extremely well. I'll keep fiddling with it.
Salsa Rustler Bar & Velo Black Grips: Not sure how I feel about the bar that came stock. Fits me well enough that I don't plan on switching it out right now but I might in the future just to try some others out. Same with the grips.
WTB Volt Saddle: It's a good saddle for the inexpensive price. Comfortable thus far including the several times I've done some long-ish rides (20 miles). Don't see any reason to upgrade since it's been just fine for me.
What I love about the KMonk and of Surly's attitude in general, is their emphasis on making your bike your own, so to speak. I don't plan on any upgrades right now because it's spec'd pretty damn good for the stock build. If I do, it's mainly to try out different things or change the ride up a bit, for instance, putting the rigid fork on it; turning it into a single-speed. Trying out 29ers on it etc. More @ just having fun with it.
Tree Fort: Had the bike in hand within a week of ordering it online on a Friday night and having it shipped out to SoCal. Bike came fully assembled other than front wheel & bars removed for shipping. They greased prepared the bike well to make it ride ready almost immediately and showed obvious care in packaging it for transport. Kudos to Tree Fort for doing exactly as they said they would.
In short, I'd absolutely recommend that everyone get a Surly KMonk or some other Surly bike.