Description
The Marlin 4 is the perfect entry-level mountain bike, ready to take you from scenic rail trails to challenging singletrack adventures. Designed for riders who need a bike that can handle rugged terrain while doubling as a tough commuter, it features Bontrager Montrose comp tyres for traction and versatility. Equipped with hydraulic disc brakes, front suspension, an 8-speed Shimano drivetrain, and mounts for racks and mudguards, it's an excellent choice for trail enthusiasts and campus commuters alike.
Constructed from Alpha Silver Aluminum, the sleek frame offers strength without added weight. Tackle bumps and rough terrain with the SR Suntour XCE 28 suspension fork, offering up to 100mm of travel for a more comfortable ride. Adapted for each size, the lightweight aluminium frame will accommodate smaller riders with a curved top tube and lower standover height, paired with Smart Wheel Sizing that ensure you’re shredding with the fastest wheel that fits, shorter reach brake levers and narrower handlebars so however small the rider, they maintain effortless confidence and control.
Whether you're hitting the trails or cruising through your daily commute, this entry-level mountain bike is built to handle it all with ease. With its rugged build and thoughtful design, the Trek Marlin 4 Gen 3 is the ultimate companion for beginners and recreational riders seeking a dependable bike.
Features:
- Constructed with Alpha Silver Aluminum: durable and lightweight
- Shorter frame sizes (XS and S) have short-reach brake levers for riders with smallers hands to brake confidently
- XS and S sizes have a curved top tube and lower standover height to make it easier for smaller riders to mount and dismount
- Internal cable routing enhances the bike's sleek appearance and protects cables from external elements
- Suspension lockout to increase pedalling efficiency - perfect for extended road sections where efficiency is more important than nump absorption
- Racks mounts for carrying accessories and essentials
- Blendr stem: clip gear directly onto the stem for clean looks and maximum user friendliness
- Weight (size M): 14.9kg / 32.85lbs
- Please note: Trek reserve the right to make changes to the product information and specifications provided and due to supply chain issues, compatible parts may be substituted at any time without notice
Specifications
Specifications
| Chain | KMC Z8.3, 8-speed |
| Crank | ProWheel alloy, 32T narrow-wide steel ring | Size XS: 160mm length | Size S, M, ML: 170mm length | Size L, XL, XXL: 175mm length |
| Fork | SR Suntour XCE 28, coil spring, preload | Size XS: 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel | Size S: 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel | Size M, ML, L, XL, XXL: 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel |
| Frame | Size 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 |
| Frame Material | Aluminium |
| Grips | Trek Line Comp, nylon lock-on |
| Handlebars | Bontrager alloy, 31.8 mm | Size XS: 5mm rise, 690mm length | Size S: 15mm rise, 720mm length | Size M, ML, L, XL, XXL: 15mm rise, 750mm length |
| Headset | Semi-integrated, 1-1/8'' |
| Hubs | FRONT: Formula DC-20, alloy, 6-bolt, 5x100 mm QR | REAR: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR | REAR skewer: 173x5 mm QR |
| Pedals | Nylon platform |
| Rims | Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve |
| Saddle | Bontrager Verse Short, stainless steel rails |
| Shifters | Shimano M315, 8-speed |
| Stem | Size XS, S: Bontrager Comp, 31.8 mm, 7-degree, 35 mm length | Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree - size M, ML, L: 50mm length; size XL: 60mm length; size XXL: 70mm length |
| Tyres | Size XS, S: Bontrager Montrose comp, wire bead, 30 tpi, 27.5x2.40" | Size M, ML, L, XL, XXL: Bontrager Montrose comp, wire bead, 30 tpi, 29x2.40" |
Delivery
Delivery
Bike Delivery (£24.99)
Delivered within 5-10 working days. This service is for orders with a large item which cannot be shipped with our regular carriers. Delivered by specialist courier who will provide updates. Please provide an accurate phone number and email address.
Click and Collect
Pay online now and the items will be delivered to store for you to collect. Orders will be kept in store for 14 days before being cancelled.
You will be notified when your order is ready to collect. Please do not travel to store until you have been notified.
Returns
Returns
Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 60 days of delivery or collection.
Complete the look
Related
Trek Marlin 4 Gen 3 Mountain Bike - Black
Free delivery on orders £50+
60 day returns
Product Code: BIHDJ9AL0553






