Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2021 Trek Marlin 5
Previous used estimate
$248 - $255
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Trek Marlin 5
12-month projected trend
9%
Direction and magnitude, not judgment
vs. category average
1%
Holds value better than category avg
Price over time - 2021 Trek Marlin 5
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 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A suspension fork, 21 speeds, and mounts for a rack and kickstand make it an ideal choice for new trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike. It's right for you if... You're new to the trail and you’re looking for a real mountain bike that doubles as a commuter—and you want it all at an exceptional value. The tech you get A lightweight aluminum frame with internal shift cable and brake hose routing to protect your cables and add to the bike's sleek look, 21 speeds, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes, and a suspension fork that takes the edge off bumps and rough terrain. The final word It’s built in Trek's MTB heritage, so you get a great ride for all your adventures. But it's also versatile, and Marlin 5 is a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorize and haul a load. Why you'll love it - It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus, or just getting from A to B on any surface - 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 - Marlin models in XS and S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount - 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
- X-Small: SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 80mm travel Small: SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm travel Medium – XX-Large: SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm travel
- Component Hubs
- Front: Formula DC-20, alloy, 6-bolt Rear: Formula DC-27, alloy, 6-bolt, 7sp 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: 100 x 5mm QR Rear: 135 x 5mm QR
- Component Chain
- KMC Z7, 7 speed
- Component Color
- Dark Aquatic/Trek Black, Trek Black/Lithium Grey, Factory Orange/Lithium Grey
- Component Frame
- Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount
- Component Brakes
- Tektro HD-M275 hydraulic disc
- Component Pedals
- VP-536 nylon platform
- Component Saddle
- Bontrager Arvada, steel rails, 138mm width
- Component Headset
- Semi-integrated, 1-1/8"
- Component Cassette
- Shimano HG200, 12-32, 7 speed
- Component Crankset
- Shimano Tourney TY301
- Component Shifters
- Shimano Altus M315
- Component Handlebar
- Bontrager alloy, 31.8mm, 5mm rise
- Component Seat Post
- Bontrager alloy, 31.6mm, 12mm offset, 330mm length
- Component Chainrings
- 42/34/24T
- 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 Brake Levers
- Tektro HD-M276 hydraulic disc, short reach
- Component Bottom Bracket
- VP BC73, 73mm, threaded cartridge
- Component Rear Derailleur
- Shimano Tourney TY300, long cage, 34T max cog
- Component Front Derailleur
- Shimano Tourney TY300, 34.9mm clamp, down swing, down pull
- Hubs
- Front: Formula DC-20, alloy, 6-bolt Rear: Formula DC-27, alloy, 6-bolt, 7sp freehub
- Crankset
- Shimano Tourney TY301
- Pedals
- VP-536 nylon platform
- Bottom Bracket
- VP BC73, 73mm, threaded cartridge
- Chain
- KMC Z7, 7 speed
- Saddle
- Bontrager Arvada, steel rails, 138mm width
- Handlebar
- Bontrager alloy, 31.8mm, 5mm rise
- Headset
- Semi-integrated, 1-1/8"
- Front Derailleur
- Shimano Tourney TY300, 34.9mm clamp, down swing, down pull
- Rear Derailleur
- Shimano Tourney TY300, long cage, 34T max cog
- Stem
- Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
- Axles
- Front: 100 x 5mm QR Rear: 135 x 5mm QR
- Brake Levers
- Tektro HD-M276 hydraulic disc, short reach
- Brakes
- Tektro HD-M275 hydraulic disc
- Cassette
- Shimano HG200, 12-32, 7 speed
- Chainrings
- 42/34/24T
- Fork
- X-Small: SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 80mm travel Small: SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm travel Medium – XX-Large: SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm travel
- Frame
- Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount
- Seat Post
- Bontrager alloy, 31.6mm, 12mm offset, 330mm length
- Shifters
- Shimano Altus M315
- Tape/Grips
- Bontrager XR Endurance Comp, lock-on
- Color
- Factory Orange/Lithium Grey
- 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.