Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Jamis
2018 Jamis Defcon 1
Value Guide market data · 2018 Jamis Defcon 1
12-month trend
7%
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Price over time - 2018 Jamis Defcon 1
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Defcon model years
2018 Defcon 1 lineup
Overview
About this bike
2018 Jamis Defcon 1 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Fox 36 Float Factory Series 27.5" w/3-position compression, Open Mode Adjust & Kashima coating, air spring, rebound adjust, tapered alloy steerer, 160mm travel
- Frame
- Triple-butted 6061 air-formed aluminum, 160mm travel mp4 suspension, Enduro Max sealed bearing pivots, 1.5 - 1 1/8” tapered head tube, asymmetrical chainstays, dropper post routing, ISCG05 chainguide mounts, 10mm hardware, replaceable derailleur hanger, Rock Shox Maxle rear axle
- Rear Shock
- Fox Float X Factory Series EVOL shock w/3-position compression, Open Mode Adjust & Kashima coating,
Drivetrain
- Groupset
- Shimano XT
- Bottom Bracket
- Enduro® BSA
- Chain
- KMC X11SL-1 DLC, 11-speed
- Chainrings
- 32T
- Crankset
- Shimano XT, 11 speed
- Rear Cogs
- Shimano XT M8000, 11-speed, 11-46T
- Rear Derailleur
- Shimano XT Shadow Plus, 11-speed
- Shifters
- Shimano XT, 1x11-speed
Brakes
- Brake Levers
- Shimano Saint
- Brakes
- Shimano Saint M820 hydraulic disc, Ice-Technology pads & 180mm RT86 Ice-Technology 6-bolt rotors
Cockpit
- Handlebar
- Answer ProTaper Riser, 780mm x 25mm rise, 31.8 mm diameter
- Headset
- FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer
- Saddle
- WTB Volt Comp
- Seatpost
- KS LEV DX, 125mm travel, Southpaw remote
- Stem
- Answer ATAC AME
- Grips
- Jamis Lock-On
Wheels & Tires
- Axles
- Front: 15x110mm thru-axle; Rear: 12x142mm thru-axle
- Front Tire
- Vittoria Goma 27.5 x 2.4" front & 2.25” rear, TNT tubeless
- Hubs
- Neo Series hubs
- Rims
- Stan's NoTubes Flow MK3 Team 27.5" tubeless wheels
- Spokes
- Sapim Race spokes
Pedals
- Pedals
- N/A
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.