Zipping through town, dipping your toes into the trail for the first time or slicing through switchbacks, no matter where you roll, the Marlin is a confidence-inspiring hardtail that’s ready for anything. With versatile trail geometry and Smart Wheel Sizing, this hardtail MTB is built to tackle everything. There’s a good reason it’s the world’s favourite Trek.

Marlin 4 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, 8-speed Shimano ESSA 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.

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.

frame	Size - XS - Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew, Size - ML , M , L , S , XL - Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kic
fork	Size - XS - SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel, Size - S - SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel, Size - ML , M , L , XL - SR Suntour XCE
front hub	Formula DC-20, alloy, 6-bolt, 5x100 mm QR
rear hub	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
rear skewer	173x5 mm QR
rim	Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
tire	Size - XS , S - Bontrager Montrose comp, wire bead, 30 tpi, 27.5x2.40", Size - ML , M , L , XL - Bontrager Montrose comp, wire bead, 30 tpi, 29x2.40"
shifter	Shimano M315, 8-speed
rear derailleur	Shimano ESSA U2000
crank	Size - XS - ProWheel alloy, 32T narrow-wide steel ring, 160 mm length, Size - ML , M , S - ProWheel alloy, 32T narrow-wide steel ring, 170 mm length, Size - L , XL - ProWheel alloy, 32T narrow-wide steel ring, 175 mm length
cassette	Shimano HG300, 11-45, 8-speed
chain	KMC Z8.3, 8-speed
pedal	Nylon platform
saddle	Bontrager Verse Short, stainless steel rails
seatpost	Size - M , XS , S - Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length, Size - ML , L , XL - Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
handlebar	Size - XS - Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width, Size - S - Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width, Size - ML , M , L , XL - Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
grips	Trek Line Comp, nylon lock-on
stem	Size - XS , S - Bontrager Comp, 31.8 mm, 7-degree, 35 mm length, Size - ML , M , L - Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length, Size - XL - Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length
headset	Semi-integrated, 1-1/8''
brake	Size - XS , S - Tektro HD-M276 hydraulic disc, Size - ML , M , XS , L , S , XL - Power BH-M286TF hydraulic disc, 160 mm rotor, Size - ML , M , L , XL - Tektro HD-M275 hydraulic disc, Size - ML , M , L , XL - Power BH-M286TF hydraulic disc, 180 mm rotor
brake rotor	Size - ML , M , XS , L , S , XL - Tektro, 6-bolt, 160mm, Size - ML , M , L , XL - Tektro, 6-bolt, 180mm
weight	M - 14.90 kg / 32.85 lbs
weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

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