TREK Marlin 7 Gen 3 2025
Model Year | 2025 |
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Options | Size: XXS in 26; Colour: Keswick; CURRENTLY UNAVAILABLE Size: XS in 27.5; Colour: Keswick; AVAILABLE TO ORDER FROM SUPPLIER Size: S in 27.5; Colour: Keswick; AVAILABLE TO ORDER FROM SUPPLIER Size: M in 29; Colour: Keswick; CURRENTLY UNAVAILABLE Size: M/L in 29; Colour: Keswick; CURRENTLY UNAVAILABLE Size: L in 29; Colour: Keswick; CURRENTLY UNAVAILABLE Size: XL in 29; Colour: Keswick; CURRENTLY UNAVAILABLE Size: XXL in 29; Colour: Keswick; CURRENTLY UNAVAILABLE Size: XXS in 26; Colour: Crystal White; CURRENTLY UNAVAILABLE Size: XS in 27.5; Colour: Crystal White; CURRENTLY UNAVAILABLE Size: S in 27.5; Colour: Crystal White; AVAILABLE TO ORDER FROM SUPPLIER Size: M in 29; Colour: Crystal White; AVAILABLE TO ORDER FROM SUPPLIER Size: M/L in 29; Colour: Crystal White; CURRENTLY UNAVAILABLE Size: L in 29; Colour: Crystal White; CURRENTLY UNAVAILABLE Size: XL in 29; Colour: Crystal White; CURRENTLY UNAVAILABLE Size: XXL in 29; Colour: Crystal White; AVAILABLE TO ORDER FROM SUPPLIER Size: XXS in 26; Colour: Pennyflake; CURRENTLY UNAVAILABLE Size: XS in 27.5; Colour: Pennyflake; AVAILABLE TO ORDER FROM SUPPLIER Size: S in 27.5; Colour: Pennyflake; AVAILABLE TO ORDER FROM SUPPLIER Size: M in 29; Colour: Pennyflake; CURRENTLY UNAVAILABLE Size: M/L in 29; Colour: Pennyflake; CURRENTLY UNAVAILABLE Size: L in 29; Colour: Pennyflake; CURRENTLY UNAVAILABLE Size: XL in 29; Colour: Pennyflake; CURRENTLY UNAVAILABLE Size: XXL in 29; Colour: Pennyflake; CURRENTLY UNAVAILABLE |
Style | 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. Loved the world over, the Marlin has long held the hearts of new riders and seasoned rippers alike, and to keep everyone rolling with ear-to-ear grins we've revamped it with more trail confidence than ever. Whether zipping through town, dipping your toes into the trail for the first time or slicing through switchbacks as a well-seasoned rider, you'll appreciate the sleek new frame that ups the capability and brings looks to match. There's a reason why it's always been your favourite. 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. Highlights: - You get real-deal modern mountain bike geometry that keeps handling confident when you're on singletrack, but is versatile enough for use on roads and bike trails too. A bike's geometry is the defining framework it's built on, and the Marlin is a true mountain bike at it's core. Its measurements are perfectly dialled to give you a confidence-inspiring, planted feel when you're rolling down steep and bumpy trails, while keeping it easy to pedal back to the top when you're ready for another lap. - You get the simplicity and range of 1x12 drivetrain for putting down power on the trail. - The included dropper post lets you get your saddle out of the way when you roll into technical sections and steeper descents. - You get a premium RockShox Judy Silver fork with an air spring that's lighter and more adjustable than a coil. - A new Thru-Skew axle provides better rear wheel security, holding your wheel in place snugly and ensuring it doesn't slip out of the frame, even when you're rolling through rough-and-tumble terrain. - Full-length, full-coverage guards on the chainstay protect your frame and keep your ride quiet. - Bigger 2.4" Maxxis tyres elevate traction, so you stay planted on dusty switchbacks. But not only do bigger tyres give you more grip - they also soak up bumps for a smoother ride. - Setting your wheels up tubeless reduces the overall weight of your bike and the chances that you'll get a flat. - Versatile: built in mounts make it easy to add a rack and mudguards if you want to. - Lifetime warranty: built to last, the Marlin is backed by Trek's limited lifetime warranty. - The right fit: available in a wide range of eight frame sizes, ranging from XXS to XXL, there's a Marlin for anyone, at any height. This is the widest size range in the industry. Smart Wheel Size ensures every rider gets the fastest wheel that fits. Extra small and small frames have 27.5" wheels and narrower handlebars that make it easier for riders with smaller hands to stay in control. XXS frames also have the right sized controls matched with 26" wheels plus a shorter 80mm travel fork that gives smaller riders a better fit for a more efficient pedalling position. Sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount. ![]() Medium and above frame sizes have 29" (29er) wheels. The 29ers gain from Trek's vast experience with bigger wheel sizes, and feature advanced frame geometry and a custom offset fork to give you brilliant handling: precise at low speed without compromising high-speed stability. The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control. Everyone wins. Upgrades from Marlin 6 Gen 3: - RockShox Judy Silver air fork - SRAM SX 1x12 gearing - Dropper post Size Guide ![]() N.B. This chart can be made bigger by opening the image in a new tab |
Frame | Alpha Silver Aluminium, internal derailleur, dropper post and brake routing, chainstay brake mount, rack and kickstand mount, 135x5mm ThruSkew. Lifetime warranty. |
Forks | RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 100mm QR, 100mm travel (XXS 80mm travel) |
Rear Derailleur | SRAM SX Eagle |
Shifters | SRAM SX Eagle, 12 speed |
Chainset | SRAM SX Eagle, 30T, 1x12 |
Bottom Bracket | Truvativ Powerspline, 73mm, threaded cartridge |
Chain | SRAM SX Eagle |
Freewheel | SRAM PG-1210 Eagle, 11-50, 12 speed cassette |
Headset | Semi-integrated, 1 1/8" |
Stem | Bontrager Comp, Blendr-compatible (mounts available for Bontrager lights and Bontrager and Garmin computers), 31.8mm, 7 degree |
Handlebars | Bontrager alloy, 31.8mm, 15mm rise (XXS 5mm rise) |
Front Brake | Shimano MT200 hydraulic disc |
Rear Brake | Shimano MT200 hydraulic disc |
Brake Levers | Shimano MT200 |
Rims | Bontrager Kovee, double wall, Tubeless Ready, 28 hole, 23mm width |
Front Hub | Formula DC-20 LW, alloy, 6-bolt, 5x100mm QR |
Rear Hub | Formula DC-22LW, 6-bolt, 135x5mm QR |
Spokes | Stainless |
Tyres | Maxxis Ardent, tubeless ready, EXO protection, foldable aramid bead, 60 tpi, 26x2.4" / 27.5x2.4" / 29x2.4" |
Saddle | Bontrager Verse Short, stainless steel rails |
Seatpost | TranzX JD-YSP18 dropper post, internal routing, 31.6mm, XXS-S 100mm travel, M 130mm travel, M/L-XXL 150mm travel |
Pedals | VP-536 nylon platform |
Grips | Bontrager XR Trail Comp, lock-on |
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.