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Carbon full-suspension mountain bike Trek Top Fuel 9.8 XT Di2 matte sedona red/pennyflake 12-speed

Carbon full-suspension mountain bike Trek Top Fuel 9.8 XT Di2 red and orange: RSL tyres, 200 mm dropper, 14.00 kg

$9,204.91 Incl. Tax

~~$11,014.72~~ MSRP

-16%

Recommended supplier selling price in 2026

Color

Rouge et Orange

Size

S
M
M / l
L
XL

Size charts

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Trek Top Fuel 9.8 XT Di2 Sedona Red: fast, colourful carbon

Designed to go fast everywhere, the Gen 4 Trek Top Fuel 9.8 XT Di2 combines an OCLV Mountain carbon frame, a Shimano XT Di2 drivetrain and triple-compound Bontrager RSL tyres, weighing 14.00 kg in size M. It offers 120 mm of rear travel and 130 mm at the front, with a dropper post that reaches 200 mm in L and XL. Its Matte Sedona Red/Pennyflake paint combines a matt earth red with coppery orange highlights, like the soils of the Salagou.

Technical specifications

Frame	OCLV Mountain carbon, internal storage, 4-position Mino Link, ABP, down tube protection, Boost148, 120-130 mm
Suspension	RockShox Pike Select+ Charger 3.1 RC2, 130 mm / RockShox Deluxe Ultimate RCT 185x50 mm
Drivetrain	Shimano XT Di2 M8250 1x12, XT M8200 10-51 cassette, XT 30T chainset
Brakes	Shimano XT M8220 4-piston, RT86 180 mm rotors
Wheels / tyres	Bontrager Line Comp 30 / Gunnison RSL XT front, Montrose RSL XT rear 2.40 (27.5 in S)
Cockpit	Bontrager Line Pro carbon 780 mm handlebar, Line Pro 35 mm stem
Saddle / seatpost	Verse Short Comp / Line Dropper from 100 to 200 mm depending on size
Weight	14.00 kg in size M (Trek figure, with tubeless sealant)

At a glance

✓ OCLV Mountain carbon	✓ 120 mm rear / 130 mm front
✓ Shimano XT Di2	✓ RockShox Pike fork
✓ Line Pro carbon handlebar	✓ 14.00 kg in size M

Who is it for?

For the tall, sporty rider who wants a bike that is fast on the link sections and safe on the descents, with no compromise on the dropper post. It will also appeal to riders on regional MTB sportives who like to ride at the front and finish fresh.

The LVR workshop view

OCLV Mountain carbon, the happy medium. The Top Fuel 9.8 is the first carbon model of the 4th generation. The OCLV Mountain layup is designed to withstand mountain bike impacts, and the frame keeps everything that makes a Top Fuel: internal storage, four-position Mino Link and ABP pivot. Trek's lifetime warranty covers the frame.

	OCLV Mountain (Top Fuel 9.x)	Alpha Platinum (Top Fuel 8)	Alpha Platinum (Top Fuel 5, Gen 3)
Level	Trek's mountain bike carbon	High-end aluminium	Same alloy, previous generation
Construction	OCLV layup tuned to absorb impacts	Hydroformed tubes, smoothed welds	Gen 3 frame, Knock Block 2.0
Reference bike	Top Fuel 9.8 XT Di2: 14.00 kg (M)	Top Fuel 8: 14.58 kg (M)	Top Fuel 5: 15.60 kg (M)
What it means	Sharper acceleration, lifetime frame warranty	Tough, less worrying in a crash	Entry into lightweight full-suspension trail riding

Put simply: a round 14 kg in size M, for a build that does not cut corners on reliability. Moving to carbon plus Di2 saves you 580 g over the aluminium Top Fuel 8.

The Gunnison RSL front and Montrose RSL rear tyres use three compounds: a fast-rolling centre tread and softer side knobs for grip in corners. On the red earth and stones of the Salagou, it is the ideal compromise between efficiency and grip.

The 200 mm Line Dropper post in L and XL lets you drop the saddle completely out of the way on steep sections, something bikes in this category often lack. The carbon frame keeps the internal storage for an inner tube and tools, handy on long rides without a pack.

Which Top Fuel should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Top Fuel 8	Alpha Platinum alloy	120 / 130 mm	Shimano SLX/XT 1x12	14.58 kg
Top Fuel 9.8 XT Di2	OCLV Mountain carbon	120 / 130 mm	Shimano XT Di2 1x12	14.00 kg
Top Fuel 9.9 XTR Di2	OCLV Mountain carbon	120 / 130 mm	Shimano XTR Di2 1x12	13.10 kg
Top Fuel 9.9 XX AXS	OCLV Mountain carbon	120 / 130 mm	SRAM XX AXS T-Type 1x12	12.85 kg

Our take: with the same frame, the 9.9 XTR Di2 saves 900 g thanks to its components. Compared with the aluminium Top Fuel 8, this 9.8 offers electronics, RSL tyres and 580 g less.

LVR sizing advice

From S to XL: the S rolls on 27.5-inch wheels, the other sizes on 29. The dropper post grows with the frame, from 100 mm in S up to 200 mm in L and XL; a real bonus for tall riders.

Size	S	M	ML	L	XL
Rider height (cm)	155-165	165-177	173-180	177-188	188-195
Inseam (cm)	74-78	79-83	81-86	84-89	89-91
Wheels (inches)	27.5	29	29	29	29
Dropper post (mm)	100	170	170	200	200

Source: Trek size guide. Bike fitting available in our Béziers shop.

Your questions

A 200 mm post in L?	Yes, in L and XL; 170 mm in M and ML, 100 mm in S.
Do the RSL tyres wear quickly?	The soft side compound wears a little faster; we check wear at every service.
Di2 updates?	We update the firmware in the workshop and configure the controls to your liking.
What about the red and orange paint?	Matte Sedona Red/Pennyflake is matt with copper flakes; clean it gently.

The LVR Cycles verdict

A fast carbon Top Fuel, generous with its dropper post and well shod. Its matt earth red and coppery highlights make it one of the most beautiful colours in the range.

Pros
+ Triple-compound RSL tyres
+ Post up to 200 mm
+ Unique red and copper colour

Cons
- Matt paint more delicate
- Line Comp alloy wheels

Why buy from LVR Cycles? In Béziers, we set up your Top Fuel tubeless, update the Di2 and set up the RockShox suspension before your first ride.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.

Reference TRK-5333145

Data sheet