Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2021 Trek Marlin 8 Gen 2
Previous used estimate
$497 - $512
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Trek Marlin 8 Gen 2
12-month projected trend
11%
Direction and magnitude, not judgment
vs. category average
3%
Drops faster than category avg
Price over time - 2021 Trek Marlin 8 Gen 2
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 8 is a race-worthy mountain bike that won’t break the bank. The smooth, lightweight RockShox fork, tubeless ready wheels, and wide-range 1x drivetrain make this model the best choice for new riders who want a fast cross country hardtail that will hold its own against our higher-end race bikes.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Rim
- Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, presta valve
- Component Fork
- Rock Shox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 100mm QR, 80mm travel, SRAM Part Number 00.4020.414.000
- Component Stem
- Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 35mm length; Bontrager Comp Blendr Stem, 31.8x50mm, 7 Degree Rise, Black
- Component Tire
- Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 26x2.40''
- Component Tube
- Innertube, 26x2.20-2.50, 32mm Presta Valve
- Product Family
- Marlin
- Component Armor
- Trek Marlin 29 2019 Chainstay Armor
- Component Chain
- SRAM Chain SX Eagle 12-Speed 114 Links with Powerlink, SRAM Part Number 00.2518.040.003
- Component Color
- Redlight; Bluedark_Black
- Component Crank
- SRAM SX Eagle, 30T steel ring (49mm chainline), 155mm length, SRAM Part Number 00.6118.554.003
- Component Decal
- Stick-On Trek Shield Headtube Badge, Black
- Component Frame
- Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
- Component Grips
- Bontrager Grips XR Trail Comp Black
- Component Pedal
- VP Pedals 536C Platform Style, Black
- Component Nipple
- NIPPLE TREK APPROVED, 14G 12MM BRASS BLACK FINISH
- Component Saddle
- Bontrager Saddle Arvada Steel Rails Medium Black
- Component Spacer
- Headset Spacer, 10mm 1-1/8in, Black
- Component Spokes
- Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 250mm Front Drive Side; Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 253mm Front Non-Drive Side; Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 254mm Rear Drive Side; Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 255mm Rear Non-Drive Side
- Component Bearing
- 3/16'' Loose Ball Bearings; 1/4'' Loose Ball Bearings
- Component Headset
- Headset 1.125 ZS VP A42 Black
- Component Shifter
- SRAM Shifter SX Eagle 12-Speed Trigger Not Matchmaker Compatible Black, SRAM Part Number 00.7018.385.000
- Component Cassette
- SRAM Cassette PG1210 12-Speed 11-50 tooth Mounts to Shimano Freehub Body, SRAM Part Number 00.2418.095.000
- Component Fastener
- Fastener Trek Derailleur Hanger Bolt M5x0.8x9mm Countersunk head Stainless Steel 3mm Hex Head Driver; M5 X 16mm Water Bottle Bolt, Stainless Steel, Black
- Component Hub Axle
- Front Hub Rebuild Kit, for Approved Loose-Ball 6-Bolt Hubs; Rear Hub Rebuild Kit, for Approved Loose-Ball 6-Bolt Hubs
- Component Hub Body
- Freehub Body, 8/9/10-Speed Hyperglide, Bontrager Comp, FH-204 for OE hubs
- Component Rear Hub
- Hub Rear Formula DC-22 28H 6 bolt disc, Black
- Component Seatpost
- Bontrager Approved Seatpost, 31.6x300mm, 12mm Offset, Black; Bontrager alloy, 31.6mm, 12mm offset, 300mm length
- Component Brake Pad
- Brake Pad, Shimano B-Series Shape : CONFIRM COMPATIBILITY BEFORE USE. BRAKE SPEC IS SUBJECT TO SUBSTITUTION AND MAY VARY.
- Component Brake Set
- Shimano Acera Brake Set. Item Number: BL-MT200(L) - BR-MT200(F), Resin Pad (without Fin), Post Mount, Hose: SM-BH59-SS, Hose length: 750mm, Compatible brake pads: B03S (Resin). (Visit si.shimano.com for compatibility, manuals and exploded views); Shimano Acera Brake Set. Item Number: BL-MT200(R) - BR-MT200(R), Resin Pad (without Fin), Post Mount, Hose: SM-BH59-SS, Hose length: 1700mm, Compatible brake pads: B03S (Resin). (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Front Hub
- Hub Front Formula DC-20 28H 6 bolt disc, Black
- Component Handlebar
- Bontrager Approved Lowriser, 31.8x690mm, 5mm Rise, 9D Bend/4D Upsweep, Black
- Component Rim Strip
- Rim Strip 26 X 25mm
- Component Rear Wheel
- Bontrager 26'' Kovee TLR/DC-22 LW 6-bolt Disc, Shimano Freehub, 135mm OLD, 28h, Black Spokes, Black Nipples, Black Rim Graphics
- Component Brake Rotor
- Shimano Tourney Rotor. Item Number: SM-RT26-S, 160mm, 6-Bolt, For Resin Pad only. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Component Front Wheel
- Bontrager 26'' Kovee TLR/DC-20 LW 6-bolt Disc, 100mm OLD, 28h, Black Spokes, Black Nipples, Black Rim Graphics
- Component Rear Skewer
- Skewer Rear Formula, QR22, 135mm OLD, Black
- Component Seat Collar
- Seat Post Clamp 2012 Bontrager 36.4mm QR Black
- Component Bar End Plug
- Bontrager Handlebar End Plug
- Component Front Skewer
- Formula Front Skewer, 100mm OLD, Black
- Component Headset Part
- Bontrager Headset Topcap, w/ Star Nut, Black
- Component Bike Part Misc
- Trek Kickstand Mount Plug; Water Bottle Plug
- Component Bottom Bracket
- SRAM Powerspline Bottom Bracket, 73x118mm, SRAM Part Number 00.6400.005.250
- Component Touch Up Paint
- Paint Color: Gloss Dnister Black, TK003-M; Paint Color: Gloss Alpine Blue, TK524-M
- Component Rear Derailleur
- SRAM Rear Derailleur SX Eagle 12-Speed Black, SRAM Part Number 00.7518.154.000; SRAM Rear Derailleur SX Eagle 12-Speed Black
- Component Cable Management
- Bottom Bracket Cable Guide Trek Marlin 2019, Includes M5 Bolt, works as a Cable Stop for the front derailleur cable
- Component Cable Housing Set
- Bontrager Shift Housing 4mm Black
- Component Derailleur Hanger
- Rear Derailleur Hanger, Trek FX/MTB Two-Bolt, Black
- Bottom Bracket
- SRAM Powerspline Bottom Bracket, 73x118mm, SRAM Part Number 00.6400.005.250
- Chain
- SRAM Chain SX Eagle 12-Speed 114 Links with Powerlink, SRAM Part Number 00.2518.040.003
- Seatpost
- Bontrager Approved Seatpost, 31.6x300mm, 12mm Offset, Black; Bontrager alloy, 31.6mm, 12mm offset, 300mm length
- Saddle
- Bontrager Saddle Arvada Steel Rails Medium Black
- Handlebar
- Bontrager Approved Lowriser, 31.8x690mm, 5mm Rise, 9D Bend/4D Upsweep, Black
- Headset
- Headset 1.125 ZS VP A42 Black
- Rear Derailleur
- SRAM Rear Derailleur SX Eagle 12-Speed Black, SRAM Part Number 00.7518.154.000; SRAM Rear Derailleur SX Eagle 12-Speed Black
- Stem
- Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 35mm length; Bontrager Comp Blendr Stem, 31.8x50mm, 7 Degree Rise, Black
- Cassette
- SRAM Cassette PG1210 12-Speed 11-50 tooth Mounts to Shimano Freehub Body, SRAM Part Number 00.2418.095.000
- Fork
- Rock Shox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 100mm QR, 80mm travel, SRAM Part Number 00.4020.414.000
- Frame
- Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
- Front Hub
- Hub Front Formula DC-20 28H 6 bolt disc, Black
- Rear Hub
- Hub Rear Formula DC-22 28H 6 bolt disc, Black
- Shifter
- SRAM Shifter SX Eagle 12-Speed Trigger Not Matchmaker Compatible Black, SRAM Part Number 00.7018.385.000
- Color
- Redlight; Bluedark_Black
- Spokes
- Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 250mm Front Drive Side; Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 253mm Front Non-Drive Side; Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 254mm Rear Drive Side; Trek Approved 14g Round J-Bend, 6.2mm Elbow, Stainless Steel, Black, 255mm Rear Non-Drive Side
- Rear Wheel
- Bontrager 26'' Kovee TLR/DC-22 LW 6-bolt Disc, Shimano Freehub, 135mm OLD, 28h, Black Spokes, Black Nipples, Black Rim Graphics
- Front Wheel
- Bontrager 26'' Kovee TLR/DC-20 LW 6-bolt Disc, 100mm OLD, 28h, Black Spokes, Black Nipples, Black Rim Graphics
- Cable Housing Set
- Bontrager Shift Housing 4mm Black
- Crank
- SRAM SX Eagle, 30T steel ring (49mm chainline), 155mm length, SRAM Part Number 00.6118.554.003
- Decal
- Stick-On Trek Shield Headtube Badge, Black
- Grips
- Bontrager Grips XR Trail Comp Black
- Nipple
- NIPPLE TREK APPROVED, 14G 12MM BRASS BLACK FINISH
- Pedal
- VP Pedals 536C Platform Style, Black
- Rim
- Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, presta valve
- Rim Strip
- Rim Strip 26 X 25mm
- Seat Collar
- Seat Post Clamp 2012 Bontrager 36.4mm QR Black
- Tire
- Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 26x2.40''
- Touch-Up Paint
- Paint Color: Gloss Dnister Black, TK003-M; Paint Color: Gloss Alpine Blue, TK524-M
- Tube
- Innertube, 26x2.20-2.50, 32mm Presta Valve
- Armor
- Trek Marlin 29 2019 Chainstay Armor
- Bar End Plug
- Bontrager Handlebar End Plug
- Bearing
- 3/16'' Loose Ball Bearings; 1/4'' Loose Ball Bearings
- Brake Rotor
- Shimano Tourney Rotor. Item Number: SM-RT26-S, 160mm, 6-Bolt, For Resin Pad only. (Visit si.shimano.com for compatibility, manuals and exploded views)
- Cable Management
- Bottom Bracket Cable Guide Trek Marlin 2019, Includes M5 Bolt, works as a Cable Stop for the front derailleur cable
- Derailleur Hanger
- Rear Derailleur Hanger, Trek FX/MTB Two-Bolt, Black
- Fastener
- Fastener Trek Derailleur Hanger Bolt M5x0.8x9mm Countersunk head Stainless Steel 3mm Hex Head Driver; M5 X 16mm Water Bottle Bolt, Stainless Steel, Black
- Headset Part
- Bontrager Headset Topcap, w/ Star Nut, Black
- Front Skewer
- Formula Front Skewer, 100mm OLD, Black
- Rear Skewer
- Skewer Rear Formula, QR22, 135mm OLD, Black
- Spacer
- Headset Spacer, 10mm 1-1/8in, Black
- Brake Pad
- Brake Pad, Shimano B-Series Shape : CONFIRM COMPATIBILITY BEFORE USE. BRAKE SPEC IS SUBJECT TO SUBSTITUTION AND MAY VARY.
- Hub Body
- Freehub Body, 8/9/10-Speed Hyperglide, Bontrager Comp, FH-204 for OE hubs
- Brake Set
- Shimano Acera Brake Set. Item Number: BL-MT200(L) - BR-MT200(F), Resin Pad (without Fin), Post Mount, Hose: SM-BH59-SS, Hose length: 750mm, Compatible brake pads: B03S (Resin). (Visit si.shimano.com for compatibility, manuals and exploded views); Shimano Acera Brake Set. Item Number: BL-MT200(R) - BR-MT200(R), Resin Pad (without Fin), Post Mount, Hose: SM-BH59-SS, Hose length: 1700mm, Compatible brake pads: B03S (Resin). (Visit si.shimano.com for compatibility, manuals and exploded views)
- Hub Axle
- Front Hub Rebuild Kit, for Approved Loose-Ball 6-Bolt Hubs; Rear Hub Rebuild Kit, for Approved Loose-Ball 6-Bolt Hubs
- Bike Part Misc
- Trek Kickstand Mount Plug; Water Bottle Plug
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.