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Top Fuel 9.9 X0 AXS Gen 4 Matte Dark Web / S (27.5" wheel) Bikes - Mountain
Top Fuel 9.9 X0 AXS Gen 4 Lunar Silver / S (27.5" wheel) Bikes - Mountain
Top Fuel 9.9 X0 AXS Gen 4 Axinite Flip / S (27.5" wheel) Bikes - Mountain

Top Fuel 9.9 X0 AXS Gen 4

C$10,999.99

Top Fuel 9.9 X0 AXS Gen 4 is an ultra-light and capable carbon trail bike built for soaring up climbs and rallying over miles of singletrack. This top-level build delivers the performance you want, with a RockShox Ultimate suspension package (120mm/130mm), and SRAM’s wireless X0 AXS transmission that shifts smoothly and easily, especially under load. It’s topped off with carbon wheels to keep your ride light from top to bottom.

ColorMatte Dark Web
SizeS (27.5" wheel)

30 Day Return Policy

Please note, bikes may not look exactly as pictured and components are subject to change

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Trek Top Fuel 9.9 X0 AXS Gen 4

C$10,999.99

Need to Know

KEY FEATURES

Advanced Suspension: 130mm RockShox Pike Ultimate fork and 120mm RockShox Deluxe Ultimate RCT shock for smooth and controlled rides.

Wireless Drivetrain: SRAM X0 Eagle AXS transmission for seamless and precise shifting.

Hydraulic Brakes: SRAM Level Silver Stealth 4-piston hydraulic disc brakes for powerful stopping power.

Lightweight Carbon Frame: OCLV Mountain Carbon frame with internal storage for essentials.

Carbon Wheels: Bontrager Line Pro 30 carbon wheels for a lightweight and responsive ride.

PERFECT FOR

This product is perfect for the rider who wants the best carbon trail bike with all-mountain capability, climbing efficiency, and top-tier components. Ideal for those who don’t mind investing in a high-performance bike with an ultra-light frame and advanced wireless transmission.

Why we like the Trek Top Fuel 9.9 X0 AXS Gen 4

Ultra-Light Frame and Versatile Geometry

The OCLV Mountain Carbon frame is extremely lightweight and features adjustable geometry, making it suitable for a wide range of riding conditions and styles.

High-End Wireless Drivetrain

Equipped with the SRAM X0 Eagle AXS transmission, this bike ensures precise and reliable wireless shifting, enhancing the overall riding experience.

Premium Suspension and Carbon Wheels

The RockShox Ultimate suspension package paired with Bontrager Line Pro 30 carbon wheels provides a smooth and responsive ride on various terrains.


Trek's journey began in 1976 when founders Dick Burke and Bevil Hogg, fueled by a shared passion for cycling, set out to create a brand that went beyond the ordinary. Starting in a southern Wisconsin barn, Trek emerged with a mission to craft extraordinary bikes. Born out of a culture of craftsmanship and rebellion, Trek challenged the convention that only European bikes could be great. Today, Trek stands as a symbol of relentless progression, innovation, and a commitment to building bikes that people love.

The Breakdown | Stats

Frame

Carbon Fibre

Fork

RockShox Pike Ultimate, DebonAir spring, Charger 3.1 RC2 damper, 44mm offset, Boost110, Maxle Stealth

Front Travel

130mm

Shock

RockShox Deluxe Ultimate RCT, 185mm x 50mm

Rear Travel

120mm


Drivetrain

Shifter

SRAM AXS POD

Rear Derailleur

SRAM X0 Eagle AXS, T-Type

Crankset

SRAM X0 Eagle, DUB, 30T steel, T-Type, 55mm chainline, 170mm length

Chain

SRAM X0 Eagle, T-Type, 12 speed

Cassette

SRAM Eagle XS-1295, T-Type, 10-52, 12 speed

Brakeset

SRAM Level Silver Stealth 4-piston hydraulic disc

Rotors

SRAM HS2, 6-bolt, 180mm

Bottom bracket

SRAM DUB MTB Wide, 73mm, BSA threaded


Cockpit

Headset

Integrated, cartridge bearing, 1-1/8” top, 1.5” bottom

Handlebar

Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm rise, 820mm width

Stem

Bontrager RSL Integrated handlebar/stem, 0 degree stem rise, 35mm stem length (S); 45mm stem length (M, ML, L, XL)

Saddle

Verse Short Pro, carbon rails, 145mm width

Dropper Post

RockShox Reverb AXS, 100mm travel (S); 170mm travel (M, ML, L, XL), wireless, 34.9mm

Dropper Lever

RockShox Reverb AXS

Grips

Bontrager XR Trail Elite, nylon lock-on


Wheels

Wheelset

Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle (front); Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle (rear)

Front Axle

Bontrager alloy, 6-bolt, Boost110, 15 mm thru-axle

Rear Axle

Bontrager alloy, sealed bearing, 6-bolt, Boost148, 12mm thru axle

Hubs

Bontrager

Tires

Bontrager Gunnison RSL XT, Tubeless Ready, triple compound, aramid bead, 120 tpi, 27.5x2.40” (S); Bontrager Montrose RSL XT, Tubeless Ready, triple compound, aramid bead, 120 tpi, 29x2.40” (M, ML, L, XL)

PERSONAL BIKE SHOPPING

IT'S FREE

Welcome to Bici's Personal Bike Shopping Service, where your cycling journey becomes truly personalized. At Bici, we understand that finding the perfect bike is more than just a purchase—it's an experience.

Our dedicated team of experts is here to guide you through every step, offering tailored advice and insights to match you with the ideal bike. Whether you're a road enthusiast, a mountain trailblazer, or a casual rider, we take the time to understand your unique needs and preferences.

Discover the difference of a truly personalized approach with Bici's Personal Bike Shopping Service, where your perfect ride awaits.

FAQ

What is Bici's return policy?

Bici's return policy includes a 30-day window for online return requests, a 15-day return period after approval, and eligibility criteria such as unused items in original packaging.

Review our return policy for comprehensive details.

How do I initiate a return with Bici?

To start a return, submit a request online within 30 days from the order date.

Visit our Return Center and follow the simple steps to process your return.

How does Bici's Price Protection Policy work?

If you purchase an item on Bicicletta.cc and find a lower price on our website within 14 days, we'll honour the sale price where possible.

The difference in price will be credited back to you as store credit in the form of a gift card.

What conditions must an item meet to be eligible for price protection?

To qualify, the item on sale must be the same make, model, year, size, and colour as the one you purchased.

It must have been bought at full price without any discounts or promotions applied. Please note that bicycles, shipping costs, and labor are not price-protected.

Learn more here.

Shipping

Fast shipping

At Bici, enjoy free standard shipping within Canada on regular price bicycles. Sale and demo bikes and trainer bikes cost $195 to ship*.

During the checkout process, easily view the estimated delivery date based on your chosen shipping method.

Order tracking

Once your order is shipped, you'll receive a confirmation email with a tracking number.

Use this number on our website's tracking page to monitor your package's journey in real-time.

Get in touch

We're here to assist you! You can reach out to our Riders Support team or call us at: 778 719 3080.

For additional contact options, visit our Contact Us page.

About us

Our brands

Our brand selection is handpicked for their unwavering commitment to design, quality, performance, and overall appeal.

We've chosen brands like Revel, Rapha, POC, Factor, and Ibis to elevate your cycling experience and meet the highest standards of discerning riders.

Our team

Bici's dynamic team embodies passion and expertise, working collaboratively to deliver outstanding products and customer experiences.

Meet the team.

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Explore the world's foremost cycling brands alongside our expert team at Bici's flagship shop. Our highly trained staff, versed in both technical prowess and fashion sensibility, is ready to guide you through a curated selection of cycling apparel and accessories.

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