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Today’s DealsMarlin 5 Gen 2
A 27.5″ aluminum frame hardtail crosscountry bike with modest components.
Mentioned in Which Trek Marlin is Best for You?
Manufacturer Price
$449| Weight | 30.8 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Hardtail, 100mm |
| Fork | Suntour XCM |
| Wheels | 27.5″ Aluminum |
| Drivetrain | 2 × 8 |
| Groupset | Altus |
| Brakes | Tektro Hydraulic Disc |
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 · Andrew McLemore
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 | Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR - XXS , XS , S : Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR; M , ML , L , XL , XXL : Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR Tire Clearance: 2.2" Color: Radioactive Red |
|---|---|
| Fork | SR Suntour XCM 30, coil spring, preload, hydraulic lockout, for 26'' wheel, 100mm QR, 100mm travel - XXS : SR Suntour XCM 30, coil spring, lockout, preload, 100 mm QR, 100 mm travel, 26" wheel; XS : SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel; S : SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel; M , ML , L , XL , XXL : SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel Travel: 100mm Spring Type: Coil |
| Bottom Bracket | Sealed cartridge, 73mm |
| Headset | Semi-integrated, 1-1/8" |
| Stem | Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 35 mm length - XXS : Bontrager Comp, 31.8 mm, 7-degree, 35 mm length; XS : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length; S : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length; M : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length; ML , L : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length; XL , XXL : Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 90 mm length |
| Handlebar | Bontrager Approved Lowriser, 31.8x690mm, 5mm Rise, 9D Bend/4D Upsweep, Black - XXS , XS : Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width; S , M , ML , L , XL , XXL : Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
| Seatpost | Bontrager alloy, 31.6mm, 12mm offset, 300mm length - XXS : Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length; XS , S , M : Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length; ML , L , XL , XXL : Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length Type: Rigid |
| Rear Derailleur | Shimano Altus M310 |
|---|---|
| Front Derailleur | Shimano Altus M315, 34.9 mm clamp, top swing, dual pull |
| Crank | Prowheel CV10 Crankset, 36/22, 160mm length - XXS : Prowheel TM-CY10, 36/22, 160 mm length; XS , S , M : Shimano M315, 36/22, 170 mm length; ML , L , XL , XXL : Shimano M315, 36/22, 175 mm length |
| Shifters | Shimano Altus Shifter. Item Number: SL-M315-2L, 7-Speed, Rapidfire Plus, Inner Cable Length: 1800mm, With Optical Gear Display. (Visit si.shimano.com for compatibility, manuals and exploded views) - XXS , XS , S , M , ML , L , XL , XXL : Shimano M315, 2-speed; XXS , XS , S , M , ML , L , XL , XXL : Shimano M315, 8-speed |
| Cassette | Shimano 8-speed, 12-32T |
| Chain | KMC Z8.3, 8 speed |
| Brakes | Tektro HD-M275 hydraulic disc, 180 mm rotor Type: Tektro Hydraulic Disc |
| Rims | Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve |
|---|---|
| Spokes | 14 g stainless steel, black |
| Front Hub | Formula DC-20, alloy, 6-bolt, 100x5 mm |
| Rear Hub | Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm |
| Tires | Bontrager Tire XR2 Comp 26 x 2.20'' - XXS : Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20"; XS , S : Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20"; M , ML , L , XL , XXL : Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20" |
First added August 15
Last updated June 7