Trek Top Fuel 5 Gen 4 Mountain Bike 2025 - Trail Full Suspension MTB
Top Fuel 5 Gen 4 is a value-packed alloy trail bike that blends agility, efficiency, confidence and all-round versatility.
Key Features
- Alpha Platinum Aluminium frame with 4-way Mino Link and 120 mm rear travel
- RockShox Recon Silver RL fork with 130 mm Solo Air suspension
- X-Fusion Pro 2 shock with 2-position damper, 120 mm rear travel
- Shimano Deore M6100 12-speed drivetrain with wide-range gearing
- Shimano MT200 hydraulic disc brakes for reliable stopping
- 29" wheels with Bontrager Gunnison Elite XR Tubeless Ready tyres
- Internal frame storage and dropper post fitted
- Available with 0% APR finance
The Trek Top Fuel 5 Gen 4 is the gateway to full-suspension trail riding, delivering the right mix of performance, adjustability and ride quality at a price that leaves room for upgrades down the line. Whether you're tackling smooth XC loops or pushing into more rugged terrain, it’s built to keep you in control.
The lightweight Alpha Platinum Aluminium frame is stiff, strong and comes with smart features like internal cable routing and built-in downtube storage for tools or snacks. The updated 4-way Mino Link allows you to fine-tune your geometry and suspension leverage rate, so you can dial the bike in for your riding style and terrain.
Up front, the RockShox Recon Silver RL fork offers 130 mm of travel with a Solo Air spring and Motion Control damper – it’s responsive and adjustable, with a lockout for smoother climbs. Out back, the X-Fusion Pro 2 rear shock gives you 120 mm of travel, keeping the rear end planted without dulling your pedalling.
The Shimano Deore 12-speed drivetrain offers smooth shifting with a wide 10-51T cassette for grinding up climbs or flying along descents. The matching Deore crankset with a 30T chainring keeps things simple and effective.
Hydraulic disc brakes from Shimano provide predictable stopping power and control in all conditions. The 29" Bontrager Line TLR 30 wheels come tubeless-ready and are wrapped in Bontrager Gunnison Elite XR 2.4" tyres – great for grip without sacrificing rolling speed.
A TranzX dropper post comes pre-fitted, giving you confidence to tackle steeper descents with a lower centre of gravity. And with a geometry that’s ready for future upgrades – like a longer travel fork or bigger rear shock – the Top Fuel 5 Gen 4 is a long-term trail partner that’ll grow with your ambition.
Whether you're new to full-suspension or simply looking for a solid trail machine that won’t drain your budget, the Top Fuel 5 Gen 4 delivers the goods.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Alpha Platinum Aluminium, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino 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 |
| Rear Shock | X-Fusion Pro 2, 2-position damper, 185 mm x 50 mm |
| Stem | Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length |
| Bars | Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width |
| Front Brake | Shimano MT200 Hydraulic Disc |
| Rear Brake | Shimano MT200 Hydraulic Disc |
| Rear Mech | Shimano Deore M6100, long cage |
| Shifters | Shimano Deore M6100, 12-speed |
| Speed | 12 |
| Rims | Bontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve |
| Front Hub | Bontrager alloy, 6-bolt, Boost110, 15 mm thru-axle |
| Rear Hub | Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
| Front Tyre | Bontrager Gunnison Elite XR, Tubeless Ready, wire bead, 60 tpi, 29x2.40" |
| Rear Tyre | Bontrager Gunnison Elite XR, Tubeless Ready, wire bead, 60 tpi, 29x2.40" |
| Seat Post | TranzX JD-YSI22, 170 mm travel, internal routing, 34.9 mm, 497 mm length |
| Saddle | Bontrager Verse P3, steel rails |
| Chainset | Shimano MT512, 30T ring, 55 mm chain line, 170 mm length |
| Bottom Bracket | Shimano BB-MT501 BSA |
| Chain | Shimano Deore M6100, 12-speed |
| Cassette | Shimano Deore M6100, 10-51, 12-speed |
Trek Top Fuel Gen 4 Size Chart
| Size | Height cm | Height Feet / Inches | Inseam cm | Inseam Inches |
|---|---|---|---|---|
| XS | 145 - 155 cm | 4'9" - 5'1" | 69 - 73 cm | 27" - 29" |
| S | 155 - 165 cm | 5'1" - 5'5" | 74 - 78 cm | 29" - 31" |
| M | 165 - 176 cm | 5'5" - 5'9" | 79 - 83 cm | 31" - 33" |
| ML | 173 - 180 cm | 5'8" - 5'11" | 81 - 86 cm | 32" - 34" |
| L | 177 - 188 cm | 5'10" - 6'2" | 84 - 89 cm | 33" - 35" |
| XL | 188 - 195 cm | 6'2" - 6'5" | 89 - 91 cm | 35" - 36" |
What size frame do I need if I am between sizes? - read here
Trek Top Fuel Gen 4 Geometry Chart
| Size | M (High) | M (Low) | ML (High) | ML (Low) | L (High) | L (Low) | XL (High) | XL (Low) |
|---|---|---|---|---|---|---|---|---|
| Stack | 599 | 603 | 604 | 607 | 608 | 612 | 626 | 630 |
| Reach | 452 | 447 | 462 | 456 | 470 | 464 | 485 | 479 |
| Head Tube Length | 105 | 105 | 110 | 110 | 115 | 115 | 135 | 135 |
| Head Tube Angle | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.5° |
| Bottom Bracket Drop | 26 | 32 | 26 | 32 | 26 | 32 | 26 | 32 |
| Fork Rake/Offset | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 |
| Trail | 121 | 125 | 121 | 125 | 121 | 125 | 121 | 125 |
| Chainstay Length | 434 | 435 | 439 | 440 | 440 | 440 | 444 | 445 |
| Wheelbase | 1188 | 1188 | 1210 | 1210 | 1227 | 1227 | 1270 | 1271 |
| Top Tube Length (horizontal) | 587 | 588 | 611 | 612 | 630 | 631 | 672 | 673 |
| Standover Height | 755 | 750 | 755 | 750 | 760 | 755 | 765 | 760 |
| Seat Tube Length | 410 | 410 | 420 | 420 | 435 | 435 | 470 | 470 |
| Seat Tube Angle | 70.5° | 70.0° | 70.5° | 70.0° | 70.5° | 70.0° | 70.5° | 70.0° |
| Effective Seat Tube Angle | 77.3° | 76.9° | 76.6° | 76.2° | 76.3° | 75.9° | 75.6° | 75.2° |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
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Trek Top Fuel 5 Gen 4 Mountain Bike 2025 - Trail Full Suspension MTB
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