Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Specialized
2015 Specialized Demo 8 II
Previous used estimate
$1,505 - $1,549
Actual value depends on condition, size, and local demand.
Value Guide market data · 2015 Specialized Demo 8 II
12-month projected trend
3%
Direction and magnitude, not judgment
vs. category average
2%
Drops faster than category avg
Price over time - 2015 Specialized Demo 8 II
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Demo model years
2025$5,096 - $5,243▲ 239% vs. 2015
2024$4,032 - $4,148▲ 168% vs. 2015
2023$3,530 - $3,632▲ 135% vs. 2015
2022$3,063 - $3,151▲ 103% vs. 2015
2021$2,662 - $2,738▲ 77% vs. 2015
2020$2,235 - $2,299▲ 48% vs. 2015
2018$1,889 - $1,943▲ 25% vs. 2015
2017$1,728 - $1,778▲ 15% vs. 2015
2016$1,793 - $1,845▲ 19% vs. 20152015$1,505 - $1,549Currently viewing
2014$1,614 - $1,660▲ 7% vs. 2015
2013$1,785 - $1,836▲ 19% vs. 2015
2012$1,162 - $1,196▼ 23% vs. 2015
2011$1,152 - $1,185▼ 23% vs. 2015
2010$1,043 - $1,073▼ 31% vs. 2015
2009$1,092 - $1,123▼ 27% vs. 2015
2008$1,188 - $1,222▼ 21% vs. 2015Overview
About this bike
Specialized's Demo 8 II is built to dismantle the world's toughest, gnarliest downhill courses. Its legendary FSR suspension now partners with 650b wheels to smooth every trail, delivering a low-center of gravity that's confident soaring through the air and skimming across techy tracks. No matter how gnar-filled the trail is, the Boxxer Team fork and Öhlins rear shock deftly control the biggest, fastest hits, and they boast the adjustments you need to perfectly tune the suspension for each course. For even more control, SRAM's Guide RS DH discs and fat Specialized tires bite hard and stop quick, while the burly Roval wheels take all the huge air and harsh landings that you can dish out. Plus, this monster is spec'd with quick-shifting SRAM X0 gearing and a Gamut bashguard.
Specifications
- Category
- Mountain
- Component Fork
- RockShox Boxxer Team, 200mm travel w/coil spring, tapered steerer, high/low speed compression and rebound, 20mm thru-axle
- Component Hubs
- Front: Specialized Hi Lo disc, 20mm thru-axle; Rear: Custom DT Swiss, 12mm rear axle
- Component Stem
- Specialized, direct-mount
- Product Family
- Demo
- Component Frame
- Specialized FSR M5-aluminum, 650b S3 Geometry, 1.5" forged headtube, 135mm rear spacing, ISCG '05 mount, cartridge bearing rear shock mount, 200mm travel
- Component Tires
- Specialized; Front: Butcher DH, 650b x 2.5; Rear: Slaughter DH, 650b x 2.3
- Component Brakes
- SRAM Guide RS DH, 200/180mm Centerline rotor
- Component Pedals
- Specialized Bennies aluminum w/removable pins
- Component Saddle
- Body Geometry Phenom Comp, 143mm wide
- Component Cassette
- SRAM PG-1030, 7-speed: 9-25
- Component Crankset
- SRAM X0 DH w/Gamut bashguard, carbon arms
- Component Seatpost
- Thomson
- Component Shifters
- SRAM X9
- Component Handlebar
- Specialized Demo low-rise, aluminum
- Component Wheel Set
- Roval DH 650b
- Component Chainrings
- 30T
- Component Rear Shock
- Custom Öhlins TTX22M, coil over w/piggy back, high/low speed compression and rebound
- Component Tape Grips
- Specialized Sip Grip, lock-on
- Component Brake Levers
- SRAM Guide RS DH
- Component Bottom Bracket
- SRAM PressFit 30
- Component Rear Derailleur
- SRAM X0 Type 2
- Rear Shock
- Custom Öhlins TTX22M, coil over w/piggy back, high/low speed compression and rebound
- Hubs
- Front: Specialized Hi Lo disc, 20mm thru-axle; Rear: Custom DT Swiss, 12mm rear axle
- Tires
- Specialized; Front: Butcher DH, 650b x 2.5; Rear: Slaughter DH, 650b x 2.3
- Crankset
- SRAM X0 DH w/Gamut bashguard, carbon arms
- Pedals
- Specialized Bennies aluminum w/removable pins
- Bottom Bracket
- SRAM PressFit 30
- Seatpost
- Thomson
- Saddle
- Body Geometry Phenom Comp, 143mm wide
- Handlebar
- Specialized Demo low-rise, aluminum
- Rear Derailleur
- SRAM X0 Type 2
- Stem
- Specialized, direct-mount
- Brake Levers
- SRAM Guide RS DH
- Brakes
- SRAM Guide RS DH, 200/180mm Centerline rotor
- Cassette
- SRAM PG-1030, 7-speed: 9-25
- Chainrings
- 30T
- Fork
- RockShox Boxxer Team, 200mm travel w/coil spring, tapered steerer, high/low speed compression and rebound, 20mm thru-axle
- Frame
- Specialized FSR M5-aluminum, 650b S3 Geometry, 1.5" forged headtube, 135mm rear spacing, ISCG '05 mount, cartridge bearing rear shock mount, 200mm travel
- Shifters
- SRAM X9
- Tape/Grips
- Specialized Sip Grip, lock-on
- Wheel Set
- Roval DH 650b
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.