2023 TREK Marlin 4 Gen 2

Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tyres, that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds and mounts for a rack and mudguards make this a great bike for new trail riders and campus commuters alike.

You want an introductory mountain bike at an incredible price, but also want a commuter that's rugged enough to hop kerbs on the way to class.

A lightweight aluminium frame with internal routing to protect your cables and add to the bike's sleek look, 21 speeds, a wide range of gearing so you always have the right gear for your terrain, powerful mechanical disc brakes and a suspension fork that takes the edge off bumps and rough terrain.

The Marlin is made for any adventure. The rack and mudguard mounts make it a great choice for commuters who want to get a little rad on the way to class or the shops.

It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus or just getting from A to B on any surface
Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
Smaller frame sizes (XS and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently
Marlin models in XS and S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount
Like every Trek, it's backed by a lifetime warranty

Specs

*Please note – spec applies to all sizes unless listed separately

Frameset

*Frame	Size: XS , S Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR
*Frame	Size: M , ML , L , XL Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR
*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: M , ML , L , XL SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel
Max compatible fork travel	100mm (XS and S: 490mm axle-to-crown, M and up: 509mm axle-to-crown)

Wheels

Hub front	Formula DC-20, alloy, 6-bolt, 5x100 mm QR
Hub rear	Formula DC-31, alloy, 6-bolt, 6/7/8-speed freewheel, 135x5 mm QR
Skewer rear	152x5 mm QR
Rim	Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
*Tyre	Size: XS , S Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20"
	Size: M , ML , L , XL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20"
	Size: M , ML , L , XL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00"
Max tyre size	Frame: 29x2.20" (XS & S: 27.5x2.40"), Fork: See manufacturer

Drivetrain

Shifter	Shimano Altus EF500, 7-speed
Front derailleur	Shimano Tourney TY300, 34.9 mm clamp, down swing, down pull
Rear derailleur	Shimano Tourney TY300
*Crank	Size: XS , S , M Shimano Tourney TY301, 42/34/24, 170 mm length
*Crank	Size: ML , L , XL Shimano Tourney TY301, 42/34/24, 175 mm length
*Bottom bracket	Size: XS , S , M , ML , L , XL VP BC73, 73 mm, threaded cartridge
*Bottom bracket	Size: XS , S , M , ML , L , XL Sealed cartridge, 73mm
Cassette	Shimano TZ500, 14-28, 7--speed
Chain	KMC Z7, 7-speed
Pedal	VP-536 nylon platform
Max. chainring size	1x/2x: 34T, 3x: 42T

Components

Saddle	Bontrager Arvada, steel rails, 138 mm width
*Seatpost	Size: XS , S Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
	Size: M Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length
	Size: ML , L , XL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
*Handlebar	Size: XS , S Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width
*Handlebar	Size: M , ML , L , XL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width
*Grips	Size: XS , S , M , ML , L , XL Bontrager XR Endurance Comp
*Grips	Size: XS , S , M , ML , L , XL Bontrager XR Endurance Comp, lock-on
*Stem	Size: XS Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length
	Size: S Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
	Size: M Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length
	Size: ML , L Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length
	Size: XL Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 90 mm length
Head set	Semi-integrated, 1-1/8"
*Brake	Size: XS , S , M , ML , L , XL Tektro MD-M280 mechanical disc, 160 mm rotor
*Brake	Size: XS , S , M , ML , L , XL Tektro MD-M281 mechanical disc, 160 mm rotor

Weight

Weight	M - 14.40 kg / 31.75 lb
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.

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2023 TREK Marlin 4 Gen 2

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