2023 Trek
Marlin 7 Gen 3
A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with upper mid-range components.
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Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
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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 ...
Apr 2024 · James Huang
Trek’s entry-level aluminum hardtail mountain bike.
Fantastic frame geometry
Excellent shifting
Good tires
Looks great
Generous tire clearance
Easy-to-live-with semi-internal routing
Sort of a rear thru-axle.
Mega-heavy fork with minimal adjustability
Tubeless costs extra
Limited upgrade potential.
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
| Frame | Size: XS, Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew; Size: S, M, ML, L, XL, XXL, Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.4" |
|---|---|
| Fork | Size: XS, S, RockShox Judy, coil spring, preload, TurnKey lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, XXL, RockShox Judy, coil spring, preload, TurnKey lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel Travel: 100mm Spring Type: Coil |
| Bottom Bracket | FSA, 73mm, threaded cartridge, 122.5mm spindle |
| Headset | Semi-integrated, 1-1/8'' |
| Stem | Size: XS, S, Bontrager Comp, 31.8mm, 7 degree, 35mm length; Size: M, ML, L, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length; Size: XL, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: XXL, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length |
| Handlebar | Size: XS, Bontrager alloy, 31.8mm, 5mm rise, 690mm width; Size: S, Bontrager alloy, 31.8mm, 15mm rise, 720mm width; Size: M, ML, L, XL, XXL, Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
| Saddle | Bontrager Arvada, steel rails, 138mm width |
| Seatpost | Size: XS, S, M, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: ML, L, XL, XXL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length Type: Rigid |
| Pedals | VP-536 nylon platform |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Rear Derailleur | Shimano Deore M5120, long cage |
|---|---|
| Crank | Size: XS, S, M, FSA Alpha Drive, 28T steel ring, 55mm chainline, 170mm length; Size: ML, L, XL, XXL, FSA Alpha Drive, 28T steel ring, 55mm chainline, 175mm length |
| Shifters | Shimano Deore M4100, 10 speed |
| Cassette | Shimano Deore M4100, 11-46, 10 speed |
| Chain | KMC X10, 10 speed |
| Brakes | Shimano MT200 hydraulic disc Type: Hydraulic Disc |
| Rims | Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve |
|---|---|
| Front Hub | Formula DC-20, alloy, 6-bolt, 100mm ThruSkew |
| Rear Hub | Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR |
| Tires | Size: XS, S, Bontrager XT3 Comp, wire bead, 30 tpi, 27.5x2.40''; Size: M, ML, L, XL, XXL, Bontrager XT3 Comp, wire bead, 30 tpi, 29x2.40'' |
| Disc Rotors | Size: XS, S, M, ML, L, XL, XXL, Shimano RT26, 6-bolt,160mm; Size: M, ML, L, XL, XXL, Shimano RT26, 6-bolt,180mm |
Last updated April 13