Trek Marlin 5 Gen 3

Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting, and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

• Marlin Gen 3 gives you serious trail capability, with big tire clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city
• Fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
• Its ThruSkew system is safer, simpler, and stronger, plus it makes removing the rear wheel easy for flat fixes in a pinch
• Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending
• Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount

Will my bike have a curved top tube?

Smaller frames have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frame sizes have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Fit for every rider

Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you’re on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control.

High tech, high value

Marlin looks and feels great. It’s packed with features usually found only on more expensive bikes, like a stylish frame with internal shift cable and brake hose routing, which can help your cables last longer by protecting them from the elements.

Shimano CUES

Inspired by rider demand for trouble-free drivetrain longevity and performance, Shimano CUES offers a new foundation for versatility and durability across a range of both electric and standard bikes. CUES features Shimano’s new LINKGLIDE drivetrain technology for significantly increased life on wear items like chain, cassette, and chainrings.

Shimano LINKGLIDE

LINKGLIDE technology has been specifically engineered for incredible durability while still delivering smooth and decisive shifting – along with a great pedalling experience. Available exclusively on Shimano CUES drivetrains.

Upgrade your pedals and love your bike more

Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.

Frame	Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew
Fork	SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel
Tire	Bontrager XT3 Comp, wire bead, 30 tpi, 27.5x2.40''
Hub Front	Formula DC-20, alloy, 6-bolt, 100x5mm
Hub Rear	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm
Rim	Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
Spokes	14g stainless steel, black
Skewer Front	116x5mm QR
Skewer Rear	173x5mm QR
Shifter	Shimano U4000, 9 speed
Rear Derailleur	Shimano CUES U4000
Crank	Prowheel C10Y-NW, 30T steel narrow-wide ring, 160mm length
Bottom Bracket	VP BC73, 73mm, threaded cartridge
Cassette	Shimano LINKGLIDE LG300, 11-46, 9 speed
Chain	Shimano LG500, 9/10/11 speed
Brake Rotor	Tektro, 6-bolt, 160mm
Pedal	VP-536 nylon platform
Seatpost	Bontrager alloy, 31.6mm, 12mm offset, 330mm length
Handlebar	Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Stem	Bontrager Comp, 31.8mm, 7 degree, 35mm length
Headset	Semi-integrated, 1-1/8''
Grips	Bontrager XR Trail Comp, nylon lock-on

Geometry Chart

B B Drop	4.5
B B Height	31.3
Chainstay Length	43.3
Eff Seat Tube Angle	74.0°
Eff Top Tube	55.1
Frame Reach	39
Frame Size Letter	XS
Frame Size Number	14.5"
Frame Stack	56.3
Head Angle	66.5°
Head Tube Length	9
Offset	4.2
Seat Tube	34
Seat Tube Angle	73.8°
Standover	65.8
Trail	11
Wheelbase	109.2
Wheel Size	27.5"