Marlin 4
A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with mid-range components and mechanical disc brakes.
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MSRP | $619 |
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Weight | 31.7 lbs |
Frame | Aluminum |
Suspension | Hardtail, 100mm |
Fork | Suntour XCE |
Wheels | 27.5″ / 29″ Aluminum |
Drivetrain | 3 × 7 |
Groupset | Tourney, Altus |
Brakes | Mechanical Disc |
For This Bike
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full Marlin model range
View Comparison4'9" – 5'2"
5'0" – 5'6"
5'4" – 5'9"
5'7" – 6'0"
5'10" – 6'3"
6'1" – 6'6"
Sep 2023
Not only is the Trek Marlin one of the most searched bikes on our website, it's also Trek's best selling mountain bike! And for good ...
May 2023
Riders can expect updated geometry, a new frame, increased tire clearance and a rear axle system that "enhances stability," Trek said.
Feb 2023 · Oscar Huckle
Can the Marlin compete with the bigger players?
Lots of frame sizes
Excellent tyre choice
Dropper seatpost
Upgrade potential
Roomier seated position would be preferred
Quick-release rather than thru-axle
Rattly internal cable routing
Dec 2019
This cheap mountain bike is the perfect gateway drug to your next (trail riding) addiction.
Wide range of gears with 2x9 drivetrain
Wheels and tires aren’t tubeless-ready
Jun 2019 · Alan Muldoon
The first of two 29er to make it into the sub 500 category, the Trek Marlin 6 certainly didn't behave like a fish out of water.
Top-rate frame quality, available in seven sizes Independent Shimano shifters
Cable and chain rattle. Rear tyre is too skinny
Frame | aluminum frame BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.2" Colors: Matte Trek Black; Voodoo Aloha Green; Matte Anthracite; Magenta |
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Fork | Size: XS, SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel; Size: S, SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, XXL, SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel Travel: 100mm Spring Type: Coil |
Bottom Bracket | Size: XS, S, M, ML, L, XL, XXL, VP BC73, 73mm, threaded cartridge; Size: XS, S, M, ML, L, XL, XXL, Sealed cartridge, 73mm |
Headset | Semi-integrated, 1-1/8'' |
Stem | Size: XS, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length; Size: S, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: M, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: ML, L, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: XL, XXL, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length |
Handlebar | Size: XS, S, Bontrager alloy, 31.8mm, 5mm rise, 690mm width; Size: M, ML, L, XL, XXL, Bontrager alloy, 31.8mm, 5mm rise, 720mm width |
Saddle | Bontrager Arvada, steel rails, 138mm width |
Seatpost | Size: XS, S, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: M, Bontrager alloy, 31.6mm, 12mm offset, 360mm length; Size: ML, L, XL, XXL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length Type: Rigid |
Pedals | VP-536 nylon platform |
Grips | Bontrager XR Endurance Comp, lock-on |
Rear Derailleur | Shimano Tourney TY300, long cage, 34T max cog |
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Front Derailleur | Shimano Tourney TY300, 34.9mm clamp, down swing, down pull |
Crank | Size: XS, S, M, Shimano Tourney TY301, 42/34/24, 170mm length; Size: ML, L, XL, XXL, Shimano Tourney TY301, 42/34/24, 175mm length |
Shifters | Shimano Altus EF500, 7 speed |
Cassette | Shimano TZ500, 14-28, 7 speed |
Chain | KMC Z7, 7 speed |
Brakes | Size: XS, S, M, ML, L, XL, XXL, Tektro MD-M280 mechanical disc, 160mm rotor; Size: XS, S, M, ML, L, XL, XXL, Tektro MD-M281 mechanical disc, 160mm rotor Type: Mechanical Disc |
Rims | Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve |
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Spokes | 14g stainless steel |
Front Hub | Formula DC-20, alloy, 6-bolt, 5x100mm QR |
Rear Hub | Formula DC-31, alloy, 6-bolt, 6/7/8 speed freewheel, 135x5mm QR |
Tires | Size: XS, S, Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20''; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20''; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00'' |
Last updated August 15
Not listed for 585 days