Trek Marlin 7 Gen 3 2025|XXL (29″ wheels)|Crystal White

Description

The Marlin 7 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry. It finds the perfect balance between price and performance with an upgraded RockShox suspension fork that makes quick work of rocks and bumps in your path and the huge gearing range of a SRAM 12-speed SX Eagle drivetrain.

It’s right for you if…

You want a go-anywhere trail bike that’s got upgrades where it matters most, but won’t break the bank. You want to build skills on the trail, and need a bike with confidence-inspiring geometry and upgraded components that can keep up with your progress.

The tech you get

A lightweight aluminium frame with modern trail riding geometry and internal routing that keeps cables protected and the bike looking sleek. An upgraded RockShox suspension fork smooths out rowdy trails, 12-speed SRAM SX Eagle shifting and the serious stopping power of hydraulic disc brakes.

The final word

The Marlin 7 is the go-to trail bike for those wanting to build skills on the singletrack and get the right bang for their buck with upgraded suspension and confidence-inspiring geometry.

*Frame Size:XXS , XS
Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135×5 mm ThruSkew Size:S , M , ML , L , XL , XXL
Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135×5 mm ThruSkew *Fork Size:XXS
RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5″ wheel, 100mm QR, 80mm travel Size:XS , S
RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 42mm offset for 27.5″ wheel, 100mm QR, 100mm travel Size:M , ML , L , XL , XXL
RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 46mm offset for 29″ wheel, 100mm QR, 100mm travel Max compatible fork travel 120mm, XXS: 80mm

Wheels

Hub front Formula DC-20 LW, alloy, 6-bolt, 5×100 mm QR Hub rear Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135×5 mm QR Skewer rear 173×5 mm QR Rim Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve *Tyre Size:XXS
Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 26×2.40″ Size:XS , S
Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 27.5×2.40″ Size:M , ML , L , XL , XXL
Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 29×2.40″ Max tyre size Frame: 29×2.40″ (XXS: 26×2.40″, XS & S: 27.5×2.40″), Fork: See manufacturer

Drivetrain

Shifter SRAM SX Eagle, 12-speed Rear derailleur SRAM SX Eagle *Crank Size:XXS
SRAM SX Eagle, 30T steel ring, 49mm chainline, 155mm length Size:XS , S , M
SRAM SX Eagle, 30T steel ring, 49mm chainline, 170mm length Size:ML , L , XL , XXL
SRAM SX Eagle, 30T steel ring, 49mm chainline, 175mm length Bottom bracket Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle Cassette SRAM PG-1210 Eagle, 11-50, 12-speed Chain SRAM SX Eagle, 12-speed Pedal VP-536 nylon platform Max. chainring size 1x: 34T, 2x: 36/22

Components

Saddle Bontrager Verse Short, stainless steel rails *Seatpost Size:XXS , XS , S
TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length Size:M
TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length Size:ML , L , XL , XXL
TranzX JD-YSP18, 150 mm travel, internal routing, 31.6 mm, 470 mm length *Handlebar Size:XXS , 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:M , ML , L , XL , XXL
Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width Grips Bontrager XR Trail Comp, nylon lock-on *Stem Size:XXS , XS , S
Bontrager Comp, 31.8 mm, 7-degree, 35 mm length Size:M , ML , 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 Size:XXL
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length Head set Semi-integrated, 1-1/8″ Brake Shimano MT200 hydraulic disc *Brake rotor Size:XXS , XS , S , M , ML , L , XL , XXL
Shimano RT26, 6-bolt,160 mm Size:M , ML , L , XL , XXL
Shimano RT26, 6-bolt,180 mm Brake Set Shimano MT200 hydraulic disc Rotor size Max brake rotor sizes – Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer

Weight

Weight M – 14.85 kg / 32.74 lbs (with TLR sealant, no tubes) 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.