Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Surly
2018 Surly Karate Monkey 27.5+
Value Guide market data · 2018 Surly Karate Monkey 27.5+
12-month trend
6%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2018 Surly Karate Monkey 27.5+
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Karate model years
2018 Karate Monkey 27.5+ lineup
Overview
About this bike
2018 Surly Karate Monkey 27.5+ value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- 483mm axle-to-crown x 47mm offset, tapered and butted straight blade, 4130 CroMoly. 51mm I.S. disc mount
- Frame
- Horizontal slotted with derailleur hanger, Surly “Gnot Boost” hub spacing compatibility
Drivetrain
- Groupset
- 2018 Surly Karate Monkey 27.5+
- Crankset
- SRAM NX
- Bottom Bracket
- SRAM Powerspline
- Chain
- KMC X11-1
- Rear Derailleur
- SRAM NX
- Cassette/Rear Cogs
- SunRace 11-speed; 11-42t
- Chainrings
- 30t
- Shifters
- SRAM NX
Brakes
- Brake Levers
- SRAM Level
- Brakes
- SRAM Level
Cockpit
- Saddle
- WTB Volt Sport
- Headset
- Cane Creek
- Stem
- Promax, 31.8mm
- Handlebars
- Answer Pro Taper
- Seat Post
- Promax 30.9
Wheels & Tires
- Hubs
- Salsa, 32h
- Tires
- Surly Dirt Wizard, 27.5 x 3.00, 60 tpi
- Axles
- Front: 15 x 110mm<br>Rear: 12 x 148mm
Accessories
- Rims/Wheels
- Alex MD40
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.