Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2020 Trek Marlin 6
Previous used estimate
$267 - $275
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 Trek Marlin 6
12-month projected trend
9%
Direction and magnitude, not judgment
vs. category average
2%
Drops faster than category avg
Price over time - 2020 Trek Marlin 6
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Marlin model years
Overview
About this bike
Marlin 6 is a quality introductory cross country mountain bike with front suspension and an upgraded 2x8 drivetrain that's light, simple, and easy to use. It's built-in Trek's trail heritage, but also equipped with features like mounts for a rack and kickstand that make it a great choice for daily commuters. It's right for you if... You're testing the waters of off-road riding, and want a real mountain bike at a great value, with a wide range of gears to cover more ground on the road and trail. The tech you get The heart of Marlin 6 is a lightweight Alpha Silver Aluminum frame with internal routing to protect your cables and add to the bike's sleek look. It has an efficient 2x8 drivetrain, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a suspension fork with 100mm of travel and a lockout feature that lets you temporarily lock the suspension for better efficiency while climbing. The final word Performance features like suspension lockout, stronger double-walled rims, and hydraulic disc brakes. It's also equipped with rack and kickstand mounts and a wide range of gears. These design details make it a great choice if your mountain bike doubles as your commuter. Why you'll love it - The 2x drivetrain gives you all the gears you need and none you don’t - Smaller frame sizes (XS and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - It has separate brake and shift levers (a feature that's common on more expensive mountain bikes) so you can fine-tune the positioning for comfort - Rack and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 51mm offset for 29" wheel, 100mm QR, 100mm travel
- Component Hubs
- Front: Formula DC-20, alloy, 6-bolt Rear: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub
- Component Size
- X-Small, Small, Medium, Medium/Large, Large, X-Large, XX-Large
- Component Stem
- Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
- Product Family
- Marlin
- Component Axles
- Front: 5x100mm QR Rear: 135x5mm QR
- Component Chain
- KMC Z8.3, 8 speed
- Component Color
- Slate
- Component Frame
- Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
- Component Brakes
- Tektro HD-M276 hydraulic disc, short reach lever
- Component Pedals
- VP-536 nylon platform
- Component Saddle
- Bontrager Arvada, steel rails
- Component Headset
- Semi-integrated, 1-1/8"
- Component Cassette
- Shimano HG31, 11-34, 8 speed
- Component Crankset
- Shimano M315
- Component Shifters
- Shimano Altus M315, 8 speed
- Component Handlebar
- Bontrager alloy, 31.8mm, 5mm rise
- Component Seat Post
- Bontrager alloy, 31.6mm, 12mm offset
- Component Chainrings
- 36/22
- Component Front Tire
- Bontrager XR2 Comp, wire bead, 30 tpi
- Component Tape Grips
- Bontrager XR Endurance Comp, lock-on
- Component Wheel Size
- 27.5-inch, 29-inch
- Component Bottom Bracket
- VP BC73, 73mm, threaded cartridge
- Component Rear Derailleur
- Shimano Altus M310
- Component Front Derailleur
- Shimano Altus M315, 34.9mm clamp, top swing, dual pull
- Hubs
- Front: Formula DC-20, alloy, 6-bolt Rear: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub
- Crankset
- Shimano M315
- Pedals
- VP-536 nylon platform
- Bottom Bracket
- VP BC73, 73mm, threaded cartridge
- Chain
- KMC Z8.3, 8 speed
- Saddle
- Bontrager Arvada, steel rails
- Handlebar
- Bontrager alloy, 31.8mm, 5mm rise
- Headset
- Semi-integrated, 1-1/8"
- Front Derailleur
- Shimano Altus M315, 34.9mm clamp, top swing, dual pull
- Rear Derailleur
- Shimano Altus M310
- Stem
- Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
- Axles
- Front: 5x100mm QR Rear: 135x5mm QR
- Brakes
- Tektro HD-M276 hydraulic disc, short reach lever
- Cassette
- Shimano HG31, 11-34, 8 speed
- Chainrings
- 36/22
- Fork
- SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 51mm offset for 29" wheel, 100mm QR, 100mm travel
- Frame
- Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
- Seat Post
- Bontrager alloy, 31.6mm, 12mm offset
- Shifters
- Shimano Altus M315, 8 speed
- Tape/Grips
- Bontrager XR Endurance Comp, lock-on
- Color
- Slate
- Size
- XX-Large
- Wheel Size
- 29-inch
- Front Tire
- Bontrager XR2 Comp, wire bead, 30 tpi
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.