Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 27.5" / 29" -
Travel Front 140mm -
Fork RockShox 35 Gold RL
-
Groupset XT, Deore -
Suspension Hardtail -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
XS
156cm - 166cm
XS
156cm - 166cm
SM
163cm - 174cm
SM
163cm - 174cm
MD
171cm - 182cm
MD
171cm - 182cm
LG
179cm - 189cm
LG
179cm - 189cm
XL
185cm - 195cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
100% Surly Chromoly Steel. Custom double butted externally flaired tubing. Horizontal slotted with derailleur hanger, Surly “Gnot Boost” 142 or 148mm hub spacing compatibility
Suspension Fork
RockShox 35 Gold RL, 27.5 - 140mm travel, 44mm offset, 15 x 110mm Axle, disc
Drivetrain
Rear Derailleur
Shimano Deore XT, RD-M8100, 12-speed
Front Derailleur
N/A
Shift Levers
Shimano Deore XT, SL-M8100
Cassette
SunRace CSMZ800, 11-51t, 12-Speed
Crank
Shimano Deore FC-M6100-1, 30t
Bottom Bracket
Shimano, included with crankset
Chain
KMC X12, NP/BK
Wheels
Front Hub
110mm, Novatec, 32h, Thru-Axle
Rear Hub
148mm, Novatec, 32h, Thru-Axle
Rims
WTB ST i35 TCS
Tires
Surly Dirt Wizard 27 x 2.8", 60tpi Tubeless Ready
Brakes
Brakes
Tektro Gemini HD-M520
Brake Levers
Tektro Gemini HD-M520
Disk Rotors
Tektro 180/160mm
Cockpit
Stem
Promax 31.8
Handlebar
Salsa Rustler without logo
Grips
Velo - lock on
Headset
Cane Creek 15
Seat
Saddle
WTB Volt 142
Seatpost
TranzX SP15, dropper post 120mm travel, 30.9
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | XS | SM | SM | MD | MD | LG | LG | XL | XL |
|---|---|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.69 mm | 1.69 mm | 1.57 mm | 1.57 mm | 1.48 mm | 1.48 mm | 1.42 mm | 1.42 mm | 1.37 mm | 1.37 mm |
| Bottom Bracket Height | 311 mm | 330 mm | 311 mm | 330 mm | 311 mm | 330 mm | 311 mm | 330 mm | 311 mm | 330 mm |
| Front Center | 652 mm | 652 mm | 677 mm | 677 mm | 702 mm | 702 mm | 728 mm | 728 mm | 753 mm | 753 mm |
| Rake | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm |
| Trail | 91 mm | 99 mm | 92 mm | 100 mm | 92 mm | 100 mm | 92 mm | 100 mm | 94 mm | 102 mm |
| Stack | 605 mm | 605 mm | 605 mm | 605 mm | 606 mm | 606 mm | 615 mm | 615 mm | 625 mm | 625 mm |
| Reach | 359 mm | 359 mm | 385 mm | 385 mm | 410 mm | 410 mm | 432 mm | 432 mm | 455 mm | 455 mm |
| Top Tube Length | 563 mm | 563 mm | 588 mm | 588 mm | 613 mm | 613 mm | 638 mm | 638 mm | 663 mm | 663 mm |
| Seat Tube Angle | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° |
| Seat Tube Length | 330 mm | 330 mm | 368 mm | 368 mm | 419 mm | 419 mm | 470 mm | 470 mm | 521 mm | 521 mm |
| Head Tube Angle | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° |
| Head Tube Length | 100 mm | 100 mm | 100 mm | 100 mm | 100 mm | 100 mm | 110 mm | 110 mm | 120 mm | 120 mm |
| Chainstay Length | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm |
| Wheelbase | 1069 mm | 1069 mm | 1094 mm | 1094 mm | 1119 mm | 1119 mm | 1145 mm | 1145 mm | 1170 mm | 1170 mm |
| Bottom Bracket Drop | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Standover Height | 755 mm | 755 mm | 773 mm | 773 mm | 795 mm | 795 mm | 824 mm | 824 mm | 853 mm | 853 mm |
| Wheels | 27" | 29" | 27" | 29" | 27" | 29" | 27" | 29" | 27" | 29" |
| Rider Min Height | 156 cm | 156 cm | 163 cm | 163 cm | 171 cm | 171 cm | 179 cm | 179 cm | 185 cm | 185 cm |
| Rider Max Height | 166 cm | 166 cm | 174 cm | 174 cm | 182 cm | 182 cm | 189 cm | 189 cm | 195 cm | 195 cm |
About this model
Karate Monkey belongs to the Surly Karate model. Surly launched 18 bikes of this model so far. You can get a glimpse at all models from 2020, by clicking on this link.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Trail bikes
According to our calculations, the average cost of a Trail bike that is reliable is 2762$. However, this doesn’t mean that if you spend less money on a Trail bike, you couldn’t get a decent one. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Furthermore, this bike was made available in 2020 for 2299$. Comparing the average cost of a Trail bike to this one, you will see that Karate Monkey price is 20.14% lower.
Overview of components
Fork
The fork installed on this bike is the RockShox 35 Gold RL model. The travel on this model is 140mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. In short, make sure you choose one with a decent fork when you purchase your dream bike.
Fork material
When it comes to the fork, this bike has a steel one, which tends to be more flexible than carbon forks in general. However, a carbon fork is considerably lighter.
Wheels
The Karate Monkey 2020 bike is equipped with 27.5″ aluminum wheels when leaving the factory. These wheels will provide you with more control over the bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
For your safety, it is important to have quality breaks on your bike. Surly Karate Monkey has Hydraulic Disc brakes installed. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.
Sizes
Surly Karate Monkey bike has 10 sizes, in the range of 156 cm – 195 cm (5.12 ft – 6.4 ft). In short, it won’t be difficult to find the right one for you.
Dropper post
Surly Karate Monkey comes with a dropper post. If you are a technical rider, a dropper post is essential. A dropper post provides increased safety while riding. The lever system, allows you to move your saddle up and down, which is very useful on climbs and descends.