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Marlin 4 is a trail-worthy daily rider, perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame.
Marlin 4 is a trail-worthy daily rider, perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame.
Trek

Trek Marlin 4 Gen 3 Hardtail Mountain Bike 2026 Purple Flip/Black Fade

£525.00
Size Guide
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

Quick & Easy Returns

Returns made easy!

Please read and fully understand this policy before returning goods to us. With exception of Warranty Claims, Faulty or Damaged goods (See terms below), we can only accept a return on an item if it is completely unused and in its original condition.
  1. Please pack the item carefully in its original packaging.
  2. Download and Print the returns slip.
  3. Fully complete the returns slip and include it in the package.
  4. Contact us to arrange a courier collection, or make your own arrangements for postal/courier service.

Returns Address

Pauls Cycles Returns
Unit A, 13 Yaxham Road
Dereham
Norfolk
NR19 1HB

Returns & Exchanges Policy Summary

We offer a 14 day returns period from the date of receipt.

It is your responsibility to ensure that the item is returned to us safely and securely, 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.

We are unable to accept returns where the goods or packaging has been used, lost, damaged or is otherwise not in the condition you received it in. Bikes must be returned in a securely packaged bike box.

If you would like us to arrange a collection via courier, then we can do so at a cost of £50. Should you fail to be present for an arranged collection, you will be charged £20 to rebook.

We will refund up to £10 for private postage of faulty or damaged items.

If you would like to exchange an item, we will happily send out a replacement product once the original has been returned.

Refunds will be made to the original payment method - this may take up to 10 days to appear depending on the method of payment. Initial shipping costs are non-refundable.

We are unable to offer a refund without proof of purchase.

We cannot accept returns without a completed returns form.

Signing for delivery receipt of items that have clearly been damaged by the courier is the responsibility of the receiver.

Items that are damaged during a return as a result of inadequate packaging will be declined and returned to you, or charged for.

Faulty Goods and Warranties

If the item that has been received is faulty, damaged or not as described then we will cover the cost of return postage (up to £10) and offer a refund or exchange. In these instances, we would always recommend using our own shipping services.

Important information to note about returning faulty, damaged or not-as-described items:

Pauls Cycles issue no warranties, all warranties are issued by manufacturers. For this reason, we may need to send your goods to the manufacturer for inspection before taking any action. Please see the relevant manufacturer's website for full warranty information.

Only products that are faulty, damaged or not as described by ourselves are eligible for returns/exchanges. If damage has been caused through wear and tear, improper care or some other factor beyond our control then it will not be covered.

Once a faulty item has been used, or if the packaging has been damaged it can still be returned to us, however, we - and the manufacturer - reserve the right to offer a repair, replacement or partial refund.

Remember it is your responsibility to ensure that returned items are packaged appropriately - any damage caused in transit [as a result of inadequate packaging] will be chargeable.

We cannot accept any cycle warranty claim or return for incorrect pedal fitment or damage to crank arms caused by incorrect pedal fitment as described in the helpsheet supplied with all of our bikes.

If the wheels on the bike you've ordered become untrue through use, or the gears need readjustment after initial use, this unfortunately not covered under warranty.

Trek Marlin 4 Gen 3 Hardtail Mountain Bike 2026 Purple Flip/Black Fade

Season:2026

Brand:Trek

Code:57361PUR

Marlin 4 is a trail-worthy daily rider, perfectly suited for everyday adventures, on and off the trail.

This bike features a trail-savvy frame with a suspension fork, 8-speed Shimano ESSA shifting, and mounts for a rack and kickstand. These features make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

Features:

  • The frame design allows for a lower standover height, which benefits shorter riders by making it easier to straddle the bike. Larger frame sizes have a straight top tube, as taller riders typically do not have the same standover height issues.
  • Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you are on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control.
  • Marlin looks and feels great. It is packed with features usually found only on more expensive bikes, like a stylish frame with internal shift cable and brake hose routing, which can help cables last longer by protecting them from the elements.
  • Inspired by rider demand for trouble-free drivetrain longevity and performance, Shimano CUES offers a new foundation for versatility and durability across a range of both electric and standard bikes. CUES features Shimano’s new LINKGLIDE drivetrain technology for significantly increased life on wear items like chain, cassette, and chainrings.
Technical Information
  • Frame Size: XS
    Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
  • Frame 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: XS
    SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel
  • Fork Size: S
    SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel
  • Fork Size: M , ML , L , XL , XXL
    SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel
  • 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
  • Skewer rear
    173x5 mm QR
  • Rim
    Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
  • Tyre Size: XS , S
    Bontrager Montrose comp, wire bead, 30 tpi, 27.5x2.40"
  • Tyre Size: M , ML , L , XL , XXL
    Bontrager Montrose comp, wire bead, 30 tpi, 29x2.40"
  • Shifter
    Shimano M315, 8-speed
  • Rear derailleur
    Shimano ESSA U2000
  • Crank Size: XS
    ProWheel alloy, 32T narrow-wide steel ring, 160 mm length
  • Crank Size: S , M , ML
    ProWheel alloy, 32T narrow-wide steel ring, 170 mm length
  • Crank Size: L , XL , XXL
    ProWheel alloy, 32T narrow-wide steel ring, 175 mm length
  • Cassette
    Shimano HG300, 11-45, 8-speed
  • Chain
    KMC Z8.3, 8-speed
  • Pedal
    Nylon platform
  • Saddle
    Bontrager Verse Short, stainless steel rails
  • Seatpost Size: XS , S , M
    Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
  • Seatpost Size: ML , L , XL , XXL
    Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
  • Handlebar Size: XS
    Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width
  • Handlebar Size: S
    Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
  • Handlebar Size: M , ML , L , XL , XXL
    Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
  • Grips
    Trek Line Comp, nylon lock-on
  • Stem Size: XS , S
    Bontrager Comp, 31.8 mm, 7-degree, 35 mm length
  • Stem Size: M , ML , L
    Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
  • Stem Size: XL
    Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length
  • Stem Size: XXL
    Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length
  • Head set
    Semi-integrated, 1-1/8''
  • Brake Size: XS , S
    Tektro HD-M276 hydraulic disc
  • Brake Size: M , ML , L , XL , XXL
    Tektro HD-M275 hydraulic disc
  • Brake rotor Size: XS , S , M , ML , L , XL , XXL
    Tektro, 6-bolt, 160mm
  • Brake rotor Size: M , ML , L , XL , XXL
    Tektro, 6-bolt, 180mm
  • Weight
    M - 14.90 kg / 32.85 lbs
  • Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Sizing Information
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