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The Top Fuel 8 Gen 4 is a nimble alloy trail bike that strikes a balance between quick climbing efficiency and descending confidence.
The Top Fuel 8 Gen 4 is a nimble alloy trail bike that strikes a balance between quick climbing efficiency and descending confidence.
Trek

Trek Top Fuel 8 Gen 4 2025 Full Suspension Mountain Bike - Dark Web

£3,500.00
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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
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

Warranty

Cycle Solutions offer a full 18-month warranty on bikes purchased through our online shop, in line with the guidance set out in the Consumer Rights Acts 2015.

In the unfortunate event of your purchase being affected by a warranty-covered fault, please inform us by email ([email protected]). Please note that our Aftersales Department's operating hours are 09:00AM to 17:30PM Monday to Friday.

Once a warranty claim has been placed we will review the claim and advise on an appropriate course of action, please do not return your item until you have spoken to an advisor.

Please allow a minimum of 15 working days from receipt of returned item(s) for repair/replacement under warranty. We expect to be able to return the items within a maximum 30 working days, however, specific timescales can change based on the requirements of the individual case.

Most bikes and accessories are covered by a standard manufacturer's warranty but please be aware that there are faults/issues that are NOT covered by your warranty. This includes;

  • Any normal wear and tear from using the product
  • Improperly installed or repaired products (always follow the instruction guides for any product set-up or installation)
  • Modifications to products
  • Stripped pedal threads - a comprehensive guide on the correct installation of pedals is sent out with every bike
  • E-bike batteries and associated componentry

Returns

We operate a 365-day return policy so that if you change your mind, the unused items can be returned to us so that you can purchase with complete peace of mind.

Once you have spoken to our aftersales department, you may need to return the item, you can arrange this via any courier/delivery service that you choose.

Please contact us in advance if you wish to return a bike

If a bike needs to be returned due to an incorrect size being ordered, or the item is no longer wanted or ordered in error, then collection can be arranged at a cost of £40.00. If you do not wish to use our collection service then any alternative return method will need to be arranged at your own cost.

Any Other Returns

Before sending your item back, please download and complete our returns form, completing all relevant sections and including this with your return - if your item is returned without the form included it can take significantly longer to correctly process the item and review the issue.

Returns Form

Item/s must be returned in the original packaging (in a resaleable condition), unused and unopened within 14-days of notification to cancel.

If Collect+ is not being used, then proof of postage will be required as Cycle Solutions is unable to accept liability for loss or damage whilst in transit back to us.


Additional non-returnable items:

· Any products that due to hygiene reasons, cannot be returned. This includes all undergarments (including socks) as well as padded shorts,bibshorts, tights, etc

· Downloadable software products

· Some health and personal care items

· CD/DVD's or software that have been opened

· Any Food or drink products that, upon return, will be within 3 months of the sell-by date

· Gift cards

· Customised bike orders

Your refund will be done with 30 days of receipt of returned goods and will not be done until the goods are received and inspected.

Please do not send your purchase back to the manufacturer.

Returning a product under the WEEE Regulations.

What do the WEEE regulations mean?

WEEE (The Waste Electrical and electronic Equipment) Directive is UK law that governs the disposal and recycling of all electrical items. The law, introduced in 2014, puts the emphasis on the producers and suppliers of electrical equipment to pay for the collection, treatment and recovery of waste electricals.

As a retailer that sells new Electrical and Electronic products we will take back old items, provided it is a like-for-like replacement when you buy a new product from us. We will then responsibly dispose of the old product ensuring that it doesn’t end up in landfill.

Old products must be returned directly to our shop or head office (details below) within 28 days of your new purchase, clearly marked as WEEE.

Cycle Solutions Head Office
6 Europa way
Fforestfach
Swansea
SA5 4AJ

Disposing of equipment yourself

If you choose not to send your equipment back to us for disposal then you can dispose of any electricals or electronics yourself at your local recycling centre, who will dispose of your equipment via a controlled recycling process.

You can locate your closest collection site by entering your postcode at www.recycle-more.co.uk

What products fall under WEEE Regulations?

As part of the WEEE regulations, all electrical and electronic goods produced after August 2005 that fall under WEEE regulations should be clearly marked with a crossed-out bin symbol which means they should not be included with household waste so that they can be recycled

As a responsible retailer we take all steps possible to ensure that our business meets all requirements of any EU & UK consumer protection laws, particularly the Consumer Contracts (Information, Cancellation & Additional Charges) Regulations 2013 and other legislation specific to the products that we sell.

If you have any concerns or questions regarding this process, please contact us at [email protected].

Warranty

Uprise offer a full 18-month warranty on bikes purchased through our online shop, in line with the guidance set out in the Consumer Rights Acts 2015.

In the unfortunate event of your purchase being affected by a warranty-covered fault, please inform us by email ([email protected]).

Please note that our Aftersales Department's operating hours are 08:30AM to 17:30PM Monday to Friday.

Once a warranty claim has been placed, we will review the claim and advise on an appropriate course of action, please do not return your item until you have spoken to an advisor.

Please allow a minimum of 15 working days from receipt of returned item(s) for repair/replacement under warranty. We expect to be able to return the items within a maximum 30 working days, however, specific timescales can change based on the requirements of the individual case.

Most bikes and accessories are covered by a standard manufacturer's warranty but please be aware that there are faults/issues that are NOT covered by your warranty. This includes.

  • Any normal wear and tear from using the product.
  • Improperly installed or repaired products (always follow the instruction guides for any product set-up or installation)
  • Modifications to products
  • Stripped pedal threads - a comprehensive guide on the correct installation of pedals is sent out with every bike.
  • E-bike batteries and associated componentry

Returns

We operate a 365-day return policy so that you can purchase with complete peace of mind.

Once you have spoken to our aftersales department, you may need to return the item, you can arrange this via any courier/delivery service that you choose.

Bikes

Please contact us in advance if you wish to return a bike as Collect+ will not accept large items

If a bike needs to be returned due to an incorrect size being ordered, or the item is no longer wanted or ordered in error, then collection can be arranged at a cost of £40.00. If you do not wish to use our collection service then any alternative return method will need to be arranged at your own cost.

Any Other Returns

Before sending your item back, please download and complete our returns form, completing all relevant sections and including this with your return - if your item is returned without the form included it can take significantly longer to correctly process the item and review the issue..

Returns Form

Item/s must be returned in the original packaging (in a resaleable condition), unused and unopened within 14-days of notification to cancel.

If Collect+ is not being used, then proof of postage will be required as Cycle Solutions is unable to accept liability for loss or damage whilst in transit back to us.


Additional non-returnable items:

Any products that due to hygiene reasons, cannot be returned. This includes all undergarments (including socks) as well as padded shorts, bibshorts, tights, etc

• Downloadable software products

• Some health and personal care items

• CD/DVD's or software that have been opened

• Any Food or drink products that, upon return, will be within 3 months of the sell-by date

• Gift cards

• Customised bike orders

Your refund will be done with 30 days of receipt of returned goods and will not be done until the goods are received and inspected.

Please do not send your purchase back to the manufacturer.

Returning a product under the WEEE Regulations.

What do the WEEE regulations mean?

WEEE (The Waste Electrical and electronic Equipment) Directive is UK law that governs the disposal and recycling of all electrical items. The law, introduced in 2014, puts the emphasis on the producers and suppliers of electrical equipment to pay for the collection, treatment and recovery of waste electricals.

As a retailer that sells new Electrical and Electronic products we will take back old items, provided it is a like-for-like replacement when you buy a new product from us. We will then responsibly dispose of the old product ensuring that it doesn't end up in landfill.

Old products must be returned directly to our shop or head office (details below) within 28 days of your new purchase, clearly marked as WEEE.

Uprise Bikes

6 Europa way

Fforestfach

Swansea

SA5 4AJ

Disposing of equipment yourself

If you choose not to send your equipment back to us for disposal then you can dispose of any electricals or electronics yourself at your local recycling centre, who will dispose of your equipment via a controlled recycling process.

You can locate your closest collection site by entering your postcode at www.recycle-more.co.uk

What products fall under WEEE Regulations?

As part of the WEEE regulations, all electrical and electronic goods produced after August 2005 that fall under WEEE regulations should be clearly marked with a crossed-out bin symbol which means they should not be included with household waste so that they can be recycled

As a responsible retailer we take all steps possible to ensure that our business meets all requirements of any EU & UK consumer protection laws, particularly the Consumer Contracts (Information, Cancellation & Additional Charges) Regulations 2013 and other legislation specific to the products that we sell.

If you have any concerns or questions regarding this process, please contact us at [email protected].

Trek Top Fuel 8 Gen 4 2025 Full Suspension Mountain Bike - Dark Web

Season:2025

Brand:Trek

Code:46143BLK

The Top Fuel 8 Gen 4 is a nimble alloy trail bike that strikes a balance between quick climbing efficiency and descending confidence. It packs in a versatile 130 mm front and 120 mm rear travel for ripping over rocks and roots without sacrificing power on ascents. It's built from lightweight Alpha Platinum Aluminium that helps save your budget for bike trips, but packs in upgrades where they matter, like a 12-speed Shimano XT and SLX drivetrain, and a Fox Rhythm 34 fork.

It's right for you if...
You want an alloy full suspension that's ready to rip. You like to ride everything from cross-country hot laps to all-mountain adventures, and you need a bike that's light, versatile and confident. You've got an appreciation for the durability of aluminium, but want upgrades where they matter, like your drivetrain and suspension.

The tech you get
An Alpha Platinum Aluminium frame equipped with a 4-way Mino Link lower shock mount for tweaking geometry and suspension leverage rate. A 130 mm FOX Rhythm 34 fork with Float EVOL air spring and GRIP damper, plus 120 mm of rear travel from a FOX Performance Float shock with a 3-position damper. It's topped off with a Shimano XT/SLX 12-speed group set, hydraulic disc brakes, a Bontrager Line dropper post and Tubeless Ready Bontrager Line Comp 30 wheels.

The final word
The Top Fuel 8 Gen 4 is ready to cut loose from all-day climbs to rooty descents. It balances capability and efficiency, with just enough travel to keep the ride smooth without eating up your pedalling power. It gives you the perfect blend of affordability, with a rugged alloy frame and upgrades where they matter, like the Shimano XT/SLX drivetrain.

Why you'll love it
  • 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
  • You get a sweet balance of price and performance with upgraded components and a rugged alloy frame
  • 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
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: Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 130 mm travel
  • Shock: Fox Performance Float DPS, 3-position damper, 185 mm x 50 mm
  • Wheel front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle
  • Wheel rear: Bontrager Line Comp 30, Tubeless-Ready, Rapid Drive 54, 6-bolt, Boost148, 12 mm thru-axle
  • Tyre: Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi 27.5/29x2.40"
  • Shifter: Shimano XT M8100, 12-speed
  • Rear derailleur: Shimano XT M8100, long cage
  • Crank: Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length
  • Bottom bracket: Shimano BB-MT501 BSA
  • Cassette: Shimano SLX M7100, 10-51T, 12-speed
  • Chain: Shimano SLX M7100, 12-speed
  • Saddle: Bontrager Verse P3, Chromoly rails
  • Seatpost: S: Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9 mm, 310mm length, M/ML/L/XL: Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 34.9 mm, 450 mm length
  • Handlebar: Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
  • Grips: Bontrager XR Trail Comp, nylon lock-on
  • Stem: Bontrager Elite, 35 mm, 0-degree, 45 mm length
  • Brake: Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
  • Brake rotor: Shimano RT66, 6-bolt, 180 mm

Please Note – Whilst we endeavour to provide up-to-date information, the manufacturer's specifications and designs can change without prior notice.
Sizing Information
SizeRider HeightInseam
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"

M/L

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"

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