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The Top Fuel 5 Gen 4 is a nimble alloy trail bike that's ready to hammer up climbs and hold its own on descents – all without breaking the bank.
The Top Fuel 5 Gen 4 is a nimble alloy trail bike that's ready to hammer up climbs and hold its own on descents – all without breaking the bank.
Trek

Trek Top Fuel 5 Gen 4 Mountain Bike In Matte Mercury

£2,500.00
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Trek Top Fuel 5 Gen 4 Mountain Bike In Matte Mercury

Season:2025

Brand:Trek

Code:46142GRY

The Top Fuel 5 Gen 4 is a nimble alloy trail bike that's ready to hammer up climbs and hold its own on descents – all without breaking the bank.

It offers 130 mm of front and 120 mm of rear suspension that gives you just enough squish to soak up chatter without draining your power on all-day pedal fests. It comes equipped with a RockShox suspension package and Shimano Deore group set that gives you everything you need to rip in an economical package.

It's right for you if...You want to dive into a full suspension rig and want a light, yet capable alloy ride to get you there. Cost is an important factor, and you don't mind upgrading some parts over time. You want to ride a variety of trails, from smooth cross-country to more rugged all-mountain and you need a versatile bike that stays efficient on long climbs without sacrificing confidence on descents.

The tech you get - An Alpha Platinum Aluminium frame with a 4-way Mino Link for adjusting geometry and leverage rate. A 130 mm RockShox Recon Silver RL fork with SoloAir spring, Motion Control damper and lockout, plus 120 mm of rear travel with an X-Fusion Pro 2 shock with a 2-position damper. It's topped off with a Shimano Deore 12-speed group set, hydraulic disc brakes, a TranzX dropper post and Tubeless Ready Bontrager Line TLR 30 wheels.

The final word - The Top Fuel 5 Gen 4 is a versatile trail bike that finds the balance between efficiency, capability and budget. Its lightweight alloy frame packs in tons of adjustment, thanks to the 4-way Mino Link, with plenty of internal storage for stashing essentials on the ride. An economical component package is ready to hit the trail now and gives you room for upgrades later.

Features:
  • Its lightweight frame and versatile geometry make it the perfect choice for all kinds of rides and all kinds of riders
  • The 4-way Mino Link makes it easy to adjust your geometry or leverage rate for how and where you want to ride
  • Its economical build lets you dive into a full suspension mountain bike without breaking the bank, and it leaves room for upgrades over time
  • The Alpha Platinum Aluminium frame is robust, yet light, and packs in updated internal frame storage for easy access to gear and snacks
  • It's more upgrade-ready than ever, with room for bigger 140 mm forks and longer-stroke shocks for up to 130 mm of rear travel, plus room for extra-long dropper posts
What are the benefits of an MTB hardtail over a full-suspension bike?An MTB hardtail is lighter, requires less maintenance, and offers better efficiency on climbs compared to full-suspension bikes. It's a great choice for riders who enjoy cross-country trails, smoother terrain, or are looking for a budget-friendly entry into mountain biking. Are carbon hardtail MTB frames worth it?Carbon hardtail MTB frames are an excellent investment for riders seeking a lightweight, stiff, and responsive ride. They improve speed and efficiency, making them ideal for racing or tackling long-distance trails. What is the best hardtail MTB for trail riding?A trail hardtail MTB typically features a slacker head angle, wider tyres, and a longer suspension fork (120mm+). These features provide better control and comfort on rougher trails while keeping the bike lightweight and efficient for climbing.
Technical Information
  • Frame
    Alpha Platinum Aluminium, internal storage, tapered head tube, internal guided routing, downtube guard, OCLV Next rocker link, Mino 4 link, ABP, Boost148, 120 mm travel
  • Fork
    RockShox Recon Silver RL, Solo Air, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel
  • Shock
    X-Fusion Pro 2, 2-position damper, 185 mm x 50 mm
  • Max Compatible Fork Travel
    140 mm
  • Hub Front
    Bontrager alloy, 6-bolt, Boost110, 15 mm thru-axle
  • Hub Rear
    Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle
  • Skewer Rear
    Bontrager Switch thru-axle, removable lever
  • Rim
    Bontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve
  • Tyre Size S
    Bontrager Gunnison Elite XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40"
  • Tyre Size M, ML, L, XL
    Bontrager Gunnison Elite XR, Tubeless Ready, wire bead, 60 tpi, 29x2.40"
  • Tyre Part
    Bontrager TLR sealant, 180 ml/6 oz
  • Rim Strip
    Bontrager TLR
  • Max Tyre Size
    Frame: 29x2.50", Fork: See manufacturer
  • Shifter
    Shimano Deore M6100, 12-speed
  • Rear Derailleur
    Shimano Deore M6100, long cage
  • Crank
    Shimano MT512, 30T ring, 55 mm chain line, 170 mm length
  • Bottom Bracket
    Shimano BB-MT501 BSA
  • Cassette
    Shimano Deore M6100, 10-51, 12-speed
  • Chain
    Shimano Deore M6100, 12-speed
  • Max. Chainring Size
    1x: 34T, min 30T
  • Saddle
    Bontrager Verse P3, steel rails
  • Seatpost Size S
    TranzX JD-YSI22, 100 mm travel, internal routing, 34.9 mm, 346 mm length
  • Seatpost Size M, ML, L, XL
    TranzX JD-YSI22, 170 mm travel, internal routing, 34.9 mm, 497 mm length
  • Handlebar
    Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
  • Grips
    Bontrager XR Trail Comp, nylon lock-on
  • Stem
    Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
  • Brake
    Shimano MT200 hydraulic disc
  • Rotor Size
    Max brake rotor sizes – Frame: 200 mm, min 180 mm, Fork: see fork manufacturer
  • Bag
    Bontrager BITS Internal Frame Storage Bag
  • Weight
    M - 15.90 kg / 35.06 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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