Trek Marlin 7 Mountain Bike 2020

★★★★★ ★★★★★

From only £17.12 per month

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Product ID: 1208790

Why buy your bike from Sigma Sports?

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Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.

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Built, Checked, Tuned and Tested

All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.

Free Bike Delivery

We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.

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Free 30-Day Bike Insurance

We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.

Trek Marlin 7 Mountain Bike 2020

Trek's Marlin 7 Mountain Bike is a fantastic entry-level choice for riders looking to get into off-road riding. It pairs a strong aluminium frame with a lightweight RockShox XC 30 fork for 100mm of trail-smoothing travel. This is a bike that'll hold its own against higher-end models with reliable components that includes a 2x9-speed Shimano drivetrain and powerful hydraulic disc brakes. There's plenty of range in the gearing to get you up the steepest climbs and flying down the other side. The Shadow design of the rear derailleur improves performance and reduces chain slap for a quieter ride. Cables have been routed internally for cleaner aesthetics and less chance of contamination, while mounts for rear racks increase versatility, making the bike suited to adventure riding and commuting too. Rolling on wheels sized to match the frame size - 27.5" or 29" - you're guaranteed of the perfect blend of efficiency, speed and control.


  • Race-worthy mountain bike that has rear rack mounts if you use it for commuting too
  • RockShox XC 30 100mm travel fork
  • 2x Shimano drivetrain
  • Backed by Trek's lifetime warranty

Technical Specification

Frame Trek Alpha silver aluminium, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
Fork RockShox XC 30, coil spring, preload, TurnKey lockout, 46mm offset for 29" wheel, 100mm QR, 100mm travel
Bottom Bracket VP BC73, 73mm, threaded cartridge
Stem Bontrager alloy, 31.8mm, Blendr compatible, 7-degree
Handlebar Bontrager alloy, 31.8mm, 5mm rise
Front Brake Shimano MT200, hydraulic disc
Rear Brake Shimano MT200, hydraulic disc
Brake Levers Shimano Altus M2010
Front Derailleur Shimano Altus M2020, 34.9mm clamp, top swing, dual pull
Rear Derailleur Shimano Acera M3000, Shadow design, long cage, 9-speed
Shift Levers Shimano Altus M2010, 9-speed
Cassette Shimano HG200, 11-36, 9-speed
Crankset Shimano MT101, 36/22
Chain KMC X9, 9-speed
Front Wheel Hub - Formula DC-20, alloy, 6-bolt, 5x100mm QR / Rim - Bontrager Connection, double-wall, 32-hole, 20mm width, Presta valve
Rear Wheel Hub - Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR / Rim - Bontrager Connection, double-wall, 32-hole, 20mm width, Presta valve
Front Tyre Bontrager XR2 Comp, wire bead, 30 tpi, 27.5/29x2.20" clincher
Rear Tyre Bontrager XR2 Comp, wire bead, 30 tpi, 27.5/29x2.20" clincher
Saddle Bontrager Arvada, steel rails, 138mm width
Seatpost Bontrager alloy, 31.6mm, 12mm offset
Pedals VP-536 nylon platform
Manufacturer Claimed Weight 14.08 kg / 31.05 lbs (with tubes) (medium)

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if specified), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.

Trek Marlin 7 Mountain Bike 2020 Sizing

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