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Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail.
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail.
Trek

Trek Marlin 5 Gen 3 Mountain Bike 2025 - Power Surge

£600.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle Free Returns

The 30 Day bike exchange allows you to buy a bike with confidence. If you are unhappy with the bike you can return a new bike within 30 days and swap it for a different one. If you’re not happy with your new bike for any reason, please contact us and we can arrange a convenient time bring it back into store and exchange it – so long as it’s clean and isn’t broken – by this we mean things like buckled wheels, crash damage, broken components, cracked frames etc.

Worn brakes and tyres are understandable and we’ll factor this into any exchange.

The 30 Day Bike Exchangeis completely separate from our 30 day returns policy and applies to new and unused bikes. It can only be used once on each new bike purchase.

We do however urge all customers to test ride the bike prior to purchase to ensure they are happy with the fit and ride experience of the bike.

30 DAY RETURNS POLICY ON UNUSED PRODUCTS

Any item, except food can be returned to us for any reason within 30 days, provided it has:

  • Not been used or fitted
  • Is returned in its original packaging
  • Has a valid proof of purchase from Beeline Bicycles

Online or in-store purchases can both be returned to any store free of charge, or can be returned by post.

Click & Collect customers can buy with confidence knowing they can try the item before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away in the store, or you still have up to 30 days to return it if you take it away.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase, Cheque payments will be refunded in cash but due to banking restrictions can only be refunded at least 14 days after the original purchase date.

We are unable to offer any refund without a valid receipt.

FAULTY ITEMS

All products purchased from Beeline Bicycles come with a full warranty which covers manufacturing faults and defects in workmanship. If you feel that your purchase has developed a fault, the fastest response we can offer is to bring your product into store for an assessment. We will need to see your proof of purchase.

If taking your product in store is not an option then please email info@beelinebicycles.co.uk. Please include photographs of your product (please keep below 20mb), a copy of receipt so we can immediately start to assess the issue.

In some cases the manufacturer/supplier and/or Beeline Bicycles may require to see the item(s) before repair or replacement can take place. If this is the case we will advise of return details and lead times.

All used items being returned to us must be cleaned for hygiene purposes.

On receipt of your goods we will carry out a full inspection & contact you within 3 working days of receipt.

Proof of purchase is also required with all potential warranty claims.

RETURNS BY POST

Please provide us with all the details of why you wish to return your purchase, as your input is invaluable to us when reviewing the products we stock.

If you are returning by post, please complete the Returns Formthen attach the returns address label to your parcel. Please include a copy of the returns form and proof of purchase.

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel. Return shipping costs are non-refundable. If the item is being returned due to our error then any postage will be reimbursed upon assessment.

It can take 5 days for your parcel to reach us dependent on the courier’s service that is used. Once we receive your parcel we will inspect and process your return within 48 hours. Refunds can take up to 5 days with your bank to appear in your account. You will receive an email update upon the completion for your return.

Trek Marlin 5 Gen 3 Mountain Bike 2025 - Power Surge

Season:2025

Brand:Trek

Code:40773GRN

Trek: Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

It's right for you if... You're new to the trail and you’re looking for a real mountain bike that doubles as a commuter – and you want it all at an exceptional value.

The tech you get: A lightweight aluminium frame with internal routing to protect your cables and add to the bike's sleek look, an upgraded 9-speed Shimano CUES drivetrain, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes and a terrain-smoothing suspension fork with a lockout.

The final word: The Marlin 5 is a great ride for all your adventures. It's also versatile and a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.

Why you'll love it:

  • The Marlin Gen 3 gives you serious trail capability, with big tyre clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city
  • Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
  • Its ThruSkew system is safer, simpler and stronger, plus it makes removing the rear wheel easy for flat fixes in a hurry
  • Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending
  • Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount
Technical Information
  • Frame
    Size: XXS , XS
    Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
    Size: S , M , ML , L , XL , XXL
    Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
  • Fork
    Size: XXS
    SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 26" wheel, 100 mm QR, 100 mm travel
    Size: XXS
    SR Suntour XCM 30, coil spring, lockout, preload, 100 mm QR, 100 mm travel, 26" wheel
    Size: XS
    SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel
    Size: S
    SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel
    Size: M , ML , L , XL , XXL
    SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel
  • Max compatible fork travel
    120mm, XXS: 80mm
  • Hub front
    Formula DC-20, alloy, 6-bolt, 5x100 mm QR
  • Hub rear
    Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
  • Rim
    Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
  • Tyre
    Size: XXS
    Bontrager XT3 Comp, wire bead, 30 tpi, 26x2.35"
    Size: XS , S
    Bontrager XT3 Comp, wire bead, 30 tpi, 27.5x2.40"
    Size: M , ML , L , XL , XXL
    Bontrager XT3 Comp, wire bead, 30 tpi, 29x2.40"
  • Max tyre size
    Frame: 29x2.40" (XXS: 26x2.40", XS & S: 27.5x2.40"), Fork: See manufacturer
  • Shifter
    Shimano U4000, 9-speed
  • Rear derailleur
    Shimano CUES U4000
  • Crank
    Size: XXS , XS
    Prowheel C10Y-NW, 30T steel narrow-wide ring, 160 mm length
    Size: S , M , ML , L , XL , XXL
    Prowheel C10Y-NW, 30T steel narrow-wide ring, 170 mm length
  • Cassette
    Shimano LINKGLIDE LG300, 11-46, 9-speed
  • Chain
    Shimano LG500
  • Pedal
    VP-536 nylon platform
  • Max. chainring size
    1x: 34T, 2x: 36/22
  • Seatpost
    Size: XXS
    Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length
    Size: XS , S , M
    Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
    Size: ML , L , XL , XXL
    Bontrager alloy, 31.6 mm, 12 mm offset, 400 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 alloy, 31.8 mm, Blendr-compatible, 7-degree, 35 mm length
    Size: M , ML , L
    Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length
    Size: XL
    Bontrager alloy, 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 rotor
    Tektro, 6-bolt, 160mm
  • Brake Set
    Size: XXS , XS , S
    Tektro HD-M276 hydraulic disc, short reach
    Size: M , ML , L , XL , XXL
    Tektro HD-M275 hydraulic disc
  • Rotor size
    Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer
  • Weight
    M - 15.10 kg / 33.29 lbs (with tubes)
  • Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Sizing Information
Trek Marlin Size Guide
XXSXSSMLMEDM-LGLGEXLXXL
4'5"-4'9"4'9"-5'0"5'1"-5'4"5'5"-5'7"5'8"-5'10"5'11"-6'1"6'2"-6'4"6'5"-6'8"
133-144145-154155-164165-172172-180180-187188-195195-203
Professional Opinion
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