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The Marlin 7 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry and equipped with Sram SX 1x12 groupset.
The Marlin 7 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry and equipped with Sram SX 1x12 groupset.
Trek

Trek Marlin 7 Gen 3 Mountain Bike 2025 - Pennyflake

£1,100.00
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 7 Gen 3 Mountain Bike 2025 - Pennyflake

Season:2025

Brand:Trek

Code:41217ORG

Trek: The Marlin 7 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry. It finds the perfect balance between price and performance with an upgraded RockShox suspension fork that makes quick work of rocks and bumps in your path and the huge gearing range of a SRAM 12-speed SX Eagle drivetrain.

It's right for you if... You want a go-anywhere trail bike that's got upgrades where it matters most, but won't break the bank. You want to build skills on the trail, and need a bike with confidence-inspiring geometry and upgraded components that can keep up with your progress.

The tech you get: A lightweight aluminium frame with modern trail riding geometry and internal routing that keeps cables protected and the bike looking sleek. An upgraded RockShox suspension fork smooths out rowdy trails, 12-speed SRAM SX Eagle shifting and the serious stopping power of hydraulic disc brakes.

The final word:The Marlin 7 is the go-to trail bike for those wanting to build skills on the singletrack and get the right bang for their buck with upgraded suspension and confidence-inspiring geometry.

Features:

  • The Marlin Gen 3 gives you serious trail capability with bigger tyre clearance, internal dropper post routing, ThruSkew rear axle and longer, slacker geometry that gives you more stability on steeper trails and at higher speeds
  • Its upgraded RockShox fork gives you 100 mm of suspension for turning rocks and roots in the trail into smooth-sailing
  • Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
  • 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 & Fork
Frame: Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
Fork: Size: M , ML , L , XL , XXL - RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel, 80mm Travel (XS, S)
Wheels & Tyres
Front Hub: Formula DC-20 LW, alloy, 6-bolt, 5x100 mm QR
Rear Hub: Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
Rear Skewer: 173x5 mm QR
Rims: Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve
Tyre: Maxxis Ardent, tubeless ready, EXO casing, folding bead, 60tpi, 29x2.40"
Gears & Drivetrain
Shifter: SRAM SX Eagle, 12-speed
Rear Derailleur: SRAM SX Eagle
Crank: SRAM SX Eagle, 30T steel ring, 49 mm chainline
Bottom Bracket: Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle
Cassette: SRAM PG-1210 Eagle, 11-50, 12-speed
Chain: SRAM SX Eagle, 12-speed
Brakes
Brake: Shimano MT200 hydraulic disc
Brake Rotor: Shimano RT26, 6-bolt,180 mm
Components
Saddle: Bontrager Verse Short, stainless steel rails
Seatpost: TranzX JD-YSP18, 100 mm travel (XS,S) 130mm (M), 150mm (ML-XL), internal routing, 31.6 mm, 361 mm length
Handlebar: Bontrager alloy, 31.8 mm, 5 mm rise,
Grips: Bontrager XR Trail Comp, nylon lock-on
Stem: Bontrager Comp, 31.8 mm, 7-degree
Headset: Semi-integrated, 1-1/8"
Pedals: VP-536 nylon platform
Weight
Weight: M - 15.03 kg / 33.14 lbs (with TLR sealant, no 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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