5 | 1 customer reviews

Trek Marlin 4

£374.99
Was £499.99
30 days free insurance available

Finance available from £7.02 per month with V12 Finance

ML (29 WHEEL)
XS (27.5 WHEEL)
S (27.5 WHEEL)
M (29 WHEEL)
L (29 WHEEL)
XL (29 WHEEL)
XXL (29 WHEEL)

Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tyres, that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds and mounts for a rack and mudguards make this a great bike for new trail riders and campus commuters alike. Accessories shown are sold separately.

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, 21 speeds, a wide range of gearing so you always have the right gear for your terrain, powerful mechanical 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

  1. It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus or just getting from A to B on any surface
  2. Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
  3. 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
  4. 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
  5. Like every Trek, it's backed by a lifetime warranty



Frame Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR
Fork SR Suntour XCE 28, coil spring, preload, 100mm QR, 100mm travel
Head Set Semi-integrated, 1-1/8
Stem Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
Handle Bars Bontrager alloy, 31.8mm, 5mm rise
Tape/Grips Bontrager XR Endurance Comp, lock-on
Brakes Tektro MD-M280 mechanical disc, 160mm rotor
Tyres Bontrager XR2 Comp, wire bead, 30tpi, 2.20
Front Derailleur Shimano Tourney TY300, 34.9mm clamp, down swing, down pull
Rear Derailleur Shimano Tourney TY300, long cage, 34T max cog
Shift Levers Shimano Altus EF500, 7 speed
Cassette Shimano TZ500, 14-28, 7 speed
CrankSet Shimano Tourney TY301, 42/34/24
Bottom Bracket VP BC73, 73mm, threaded cartridge
Pedals VP-536 nylon platform
Front Tyre Bontrager XR2 Comp, wire bead, 30tpi, 2.20
Rear Tyre Bontrager XR2 Comp, wire bead, 30tpi, 2.20
Saddle Bontrager Arvada, steel rails, 138mm width
Seat Post Bontrager alloy, 31.6mm, 12mm offset

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Comment author

Verified Purchase | 2023-08-08 21:47:49

Awesome bike, smooth, liquid like gear changes, brakes with plenty of feel and stopping power. The large wheels make for easier mile eating.

The only thing I am not a fan of is the saddle, its far too hard since I have not been riding regul;arly the last few years, though I imagine if you are a regular rider you will cope.

More reasons to buy from us

We price match all products on a like for like basis.

To qualify the item must be available in stock with a UK supplier and any additional costs taken into consideration.

i.e delivery charges, buyers premium, assembly charges.

Call us on 01823 252499 before you make your purchase to enquire about price matching a product.

Please read our full price match policy.

With all bike sales you will receive an informational bike pack that contains a 15% Off accessories voucher inside.

This voucher is redeemable at your nearest Bicycle Chain, Rock & Road or Climb On Bikes Store.

We currently have stores in Yeovil, Taunton, Bridgwater, Weston-Super-Mare and Hereford.

This is part of our 'Support Local Business' initiative, where we want to see local riders supported by their local bike shops.

We hope to see you in store soon.

When you buy a bike from us in the store or come to collect your Click & Collect order we will adjust your new bike to fit you.

This includes adjusting saddle height, saddle position and where possible adjusting the brake levers / gear shifters.

We will also adjust any accessories you have purchased with your bike where applicable.

When you buy a bike from us you will get a free service at your nearest Bicycle Chain store within 6 weeks of taking delivery of your bike.

The free service is put in place to make sure the bike you have purchased is running correctly and to adjust out any cable stretch that happens to any new bike.

The type of bike you have bought and the type of riding you have planned will affect how soon you need to book your free service.

  • Light use - 6 weeks
  • Daily commuting / moderate use - 4 weeks
  • Hard / aggressive use - After the first 2 rides

However if you experience any issues at any time you should stop riding your bike and book your bike in for its free service immediately.

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