Why buy your bike from Sigma Sports?
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.
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.
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.
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
|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.