The Trek Marlin 7 is where race-worthy mountain bikes begin. The smooth, lightweight RockShox fork and upgraded parts 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. You're new to the trail but have serious singletrack aspirations, and want a race-worthy mountain bike with upgrades on the parts that make a big difference in performance, like a higher quality suspension fork and a wide-range 1x drive train.
Key Features
Alpha Silver Aluminium Frame allows easier handling on the toughest of trails
RockShox Judy Fork is ready to tackle the most demanding trail and enduro rides
Shimano Deore 10 Speed Drivetrain delivers personalized gear choices that take you as far and wide as you want to go
Shimano MT200 Hydraulic Disc Brakes for reliability and consistency you can count on
Bontrager XR2 Comp 27.5/29 x 2.2" Tyres offers Incredible traction and cornering for loose and rocky trails, wet or dry
Smart Wheel Size - The right wheel size is paired with your frame size to give the perfect fit to enhance your cycling experience
27.5" Wheel- XS and S29" Wheel- M, ML, L, XL, XXL
Specifications
Frameset
Frame: Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR
Fork: RockShox Judy, coil spring, preload, TurnKey lockout
Max compatible fork travel: 100mm (XS & S: 490mm axle-to-crown, M & up: 509mm axle-to-crown)
Wheels
Rims: Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve

Hubs: Formula DC-20 QR / Formula DC-22, QR

Tyres: Bontrager XR2 Comp, wire bead, 2.2 width
Spokes: 14g stainless steel
Drivechain
Pedals: VP-536 nylon platform
Crank: Shimano M315, 36/22
Front Derailleur: Shimano Altus M315, 34.9 mm clamp, top swing, dual pull
Rear Derailleur: Shimano Deore M5120, long cage
Cassette: Shimano Deore M4100, 11-46, 10-speed
Shifter: Shimano Deore M4100, 10 speed
Chain: KMC X10, 10-speed
Bottom Bracket: FSA, 73 mm, threaded cartridge, 122.5 mm spindle
Components
Handlebar: Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width (XS) / Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width (S - XXL)
Grips: Bontrager XR Trail Comp, nylon lock-on
Stem: Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree,
Headset: Semi-integrated, 1-1/8
Brakes: Shimano MT200 hydraulic disc
Saddle: Bontrager Arvada, steel rails, 138 mm width
Seatpost: Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length (XS-M) / 400mm length (ML - XXL)
Weight
Weight: M - 29.70lbs / 13.47kg
Max Capacity: 136kg / 300lbs (including bike & cargo)
Bike Sizing XS S M M/L L XL XXL Rider Height 4'9-5'0 / 145cm - 154cm 5'1-5'4 / 155cm - 164cm 5'5-5'7 / 165cm - 172cm 5'8-5'10 / 172cm - 180cm 5'11-6'1 / 180cm - 187cm 6'2-6'4 / 188cm - 195cm 6'5-6'8 / 195cm - 203cm