Trek Top Fuel 9.8 Gen 4 Dark Star
Trek Top Fuel 9.8 Gen 4 Dark Star
Trek Top Fuel 9.8 Gen 4 Dark Star
Trek Top Fuel 9.8 Gen 4 Dark Star
Trek Top Fuel 9.8 Gen 4 Dark Star
Trek Top Fuel 9.8 Gen 4 Dark Star
Trek Top Fuel 9.8 Gen 4 Dark Star

Trek Top Fuel 9.8 Gen 4 Dark Star

Regular price$7,999.99
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🚚 Bike freight $200 (QLD, NSW, VIC, ACT, TAS & SA)

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Trek Top Fuel 9.8 XT Di2 Gen 4

The Trek Top Fuel 9.8 XT Di2 Gen 4 is a lightweight carbon trail bike built for riders who want fast climbing efficiency without giving up confidence on technical descents. With 120mm rear travel, a 130mm RockShox Pike Select+ fork, and a smooth Shimano XT Di2 wireless drivetrain, this bike is ready for big days on the trails, from fast XC-style loops to rougher singletrack at Finch Hatton.

Its OCLV Mountain Carbon frame keeps the ride light and responsive, while Trek’s Mino Link adjustment, ABP suspension platform, internal frame storage, and modern trail geometry make it a versatile choice for riders who want one premium mountain bike that can climb, corner, and descend with confidence.

Why You'll Love It

  • Lightweight OCLV Mountain Carbon frame with internal storage and clean guided cable routing
  • 120mm rear travel and 130mm front travel for efficient climbing and confident descending
  • Shimano XT Di2 wireless 12-speed drivetrain for fast, precise shifting
  • RockShox Pike Select+ fork and Deluxe Ultimate shock for capable trail performance
  • Shimano XT 4-piston brakes with 180mm rotors for strong control on steep terrain
  • Bontrager Line Comp 30 Tubeless Ready wheels with fast-rolling trail tyres
  • Perfect for Mackay riders chasing speed, efficiency, and control on local trail networks like Finch Hatton MTB

Key Specifications

  • Frame: OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel
  • Fork: RockShox Pike Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 130mm travel
  • Rear Shock: RockShox Deluxe Ultimate RCT, 185mm x 50mm
  • Shifter: Shimano XT Di2 M8250, 12-speed
  • Rear Derailleur: Shimano XT M8250, long cage
  • Crank: Shimano XT 8200, 30T, 55mm chainline, 170mm length
  • Cassette: Shimano XT M8200, 10-51T, 12-speed
  • Chain: Shimano Ultegra/XT M8100
  • Brakes: Shimano XT M8220 4-piston hydraulic disc
  • Brake Rotors: Shimano RT86, 6-bolt, 180mm
  • Handlebar: Bontrager Line Pro OCLV Carbon, 35mm clamp, 27.5mm rise, 780mm width
  • Stem: Bontrager Line Pro, 35mm, Blendr-compatible, 0-degree, 35mm length
  • Saddle: Verse Short Comp, steel rails, 145mm width
  • Weight: M - 14.00kg / 30.86lbs with TLR sealant, no tubes
  • Weight Limit: 136kg combined bike, rider and cargo

Wheel & Tyre Details

  • Size S: 27.5" Bontrager Line Comp 30 Tubeless Ready wheels
  • Sizes M, ML, L, XL: 29" Bontrager Line Comp 30 Tubeless Ready wheels
  • Tyres: Bontrager Gunnison RSL XT / Montrose RSL XT, Tubeless Ready, triple compound, aramid bead, 120tpi, 2.40"
  • Maximum Tyre Size: Frame clearance up to 29 x 2.50"

Dropper Post Sizing

  • Size S: Bontrager Line Dropper, 100mm travel
  • Sizes M, ML: Bontrager Line Dropper, 170mm travel
  • Sizes L, XL: Bontrager Line Dropper, 200mm travel

Built for Mackay Trails

The Top Fuel 9.8 XT Di2 Gen 4 is a strong match for riders wanting a fast, efficient, and capable mountain bike for local Mackay riding. It is light enough for long climbs, sharp enough for fast trail loops, and confident enough for rougher sections at Finch Hatton MTB. Every bike from Mackay Cycles is professionally assembled, safety checked, and supported by our local workshop team.

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  • Bike freight (QLD, NSW, VIC, ACT, TAS & SA): $200
  • Click & Collect: Free
  • WA / NT: by quote

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Why buy your Trek from Mackay Cycles?

Professionally Built & Ready to Ride

Every Trek bike sold by Mackay Cycles is assembled, tuned, and safety-checked by our qualified mechanics. No box shipping — just a bike that's ready to ride from day one.

Your Local Trek Dealer

We're an official Trek dealer, offering genuine Trek products, warranty support, and expert advice right here in North Queensland.

Trek Lifetime Frame Warranty

Trek frames are covered by a lifetime warranty. If you ever need support, Mackay Cycles handles the process for you — locally and hassle-free.

Ongoing Support After the Sale

From suspension setup to servicing and future upgrades, our team is here long after your purchase. Buying local means real, ongoing support.

WHY CHOOSE US?

MACKAY CYCLES

Locally owned and operated family business

Our passion inspires the pursuit of freedom.  Absorb yourself in the ultimate cycling destination 

Testimonials

★★★★★

Good range of products from “budget but not junk” to top shelf. Staff seem passionate and knowledgeable about bikes and ride themselves. Always a good experience shopping at Mackay Cycles.

Scott
Queensland, Australia
★★★★★

Good customer service, Service completed swiftly and ahead of schedule

Andrew
Queensland, Australia
★★★★★

The team had great knowledge on all the products and the customer service was awesome.

Luke
Queensland, Australia
★★★★★

Today I purchased my second bike through Mackay Cycles and couldn’t be happier. Very knowledgeable and helpful staff.

Hayden
Queensland, Australia

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