2025 Trek Marlin 4 Gen 2 - Crimson

R 9,499.00 ZAR
Size

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The Marlin 4 is the gateway mountain bike that will take you from rail trails to singletrack. It's ideal for riders who want a mountain bike with knobby tyres that can double as a rugged commuter. Disc brakes, front suspension, Shimano 14-speed shifting and mounts for a rack and mudguards make this a great bike for trail riders and campus commuters alike.

It's right for you if...
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.

The tech you get
A lightweight aluminium frame with internal routing to protect your cables and add to the bike's sleek look, trustworthy 14-speed Shimano shifting with a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes and a suspension fork that takes the edge off bumps and rough terrain.

The final word
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.
Why you'll love it
The Marlin Gen 2 is ready to roll with easy to use features that help you get the best bang for your buck
Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter (sold seperate)
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

OVERVIEW

SPECS

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

Frameset
Specifications
*Frame Size: XS , S
Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR
Size: ML , M , L , XL , XXL
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: ML , M , L , XL , XXL
SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel
Wheels
Specifications
*Front Hub Size: ML , M , XS , L , S , XL , XXL
Formula DC-20, alloy, 6-bolt, 5x100 mm QR
*Rear Hub Size: ML , M , XS , L , S , XL , XXL
Formula DC-31, alloy, 6-bolt, 6/7/8-speed freewheel, 135x5 mm QR
*Rear Skewer Size: ML , M , XS , L , S , XL , XXL152x5 mm QR
*Rim Size: ML , M , XS , L , S , XL , XXL
Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
*Spokes Size: ML , M , XS , L , S , XL , XXL
14 g stainless steel, black
*Tire Size: XS , S
Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20"
Size: ML , M , L , XL , XXL
Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20"
Max tyre size Frame: 29x2.20" (XS & S: 27.5x2.40"), Fork: See manufacturer
Drivetrain
Specifications
*Shifter Size: ML , M , XS , L , S , XL , XXL
Shimano EF500, 2-speed
Size: ML , M , XS , L , S , XL , XXL
Shimano Altus EF500, 7-speed
*Front Derailleur Size: ML , M , XS , L , S , XL , XXL
Shimano Altus M315, 34.9 mm clamp, top swing, dual pull
*Rear Derailleur Size: ML , M , XS , L , S , XL , XXL
Shimano Tourney TY300
*Crank Size: M , XS , S
ProWheel TM-CY10, 36/22, 170 mm length
Size: ML , L , XL , XXL
ProWheel TM-CY10, 36/22, 175 mm length
*Bottom Bracket Size: ML , M , XS , L , S , XL , XXL
VP BC73, 73 mm, threaded cartridge
*Cassette Size: ML , M , XS , L , S , XL , XXL
Shimano TZ500, 14-34, 7-speed
*Chain Size: ML , M , XS , L , S , XL , XXL
KMC Z7, 7-speed
*Pedal Size: ML , M , XS , L , S , XL , XXLVP-536 nylon platform
Max. chainring size 1x: See FAQ, 2x: 36T, 3x: 42T
Components
Specifications
*Saddle Size: ML , M , XS , L , S , XL , XXL
Bontrager Verse Short, stainless steel rails
*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 , XXL
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
Size: ML , M , L , XL , XXL
Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
*Grips Size: ML , M , XS , L , S , XL , XXL
Bontrager XR Endurance Comp, lock-on
*Stem Size: XS , SBontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
Size: MBontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length
Size: ML , LBontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length
Size: XL , XXLBontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 80 mm length
*Headset Size: ML , M , XS , L , S , XL , XXL
Semi-integrated, 1-1/8"
*Brake Size: ML , M , XS , L , S , XL , XXL
Tektro MD-M280 mechanical disc
Size: ML , M , XS , L , S , XL , XXL
Tektro MD-M281 mechanical disc
Size: ML , M , XS , L , S , XL , XXL
Tektro MD-M280 mechanical disc, 160 mm rotor
Size: ML , M , XS , L , S , XL , XXL
Tektro MD-M281 mechanical disc, 160 mm rotor
*Brake Rotor Size: ML , M , XS , L , S , XL , XXL
Tektro wave, 6-bolt, 160 mm
Rotor size Max brake rotor sizes - Frame: 180mm, min 160mm, Fork: see fork manufacturer
Weight
Specifications
Weight M - 14.60 kg / 32.19 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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