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Carbon full-suspension mountain bike Trek Slash 9.8 XT Di2 dark star/dark web 12-speed

Carbon full-suspension mountain bike Trek Slash 9.8 XT Di2 black: enduro 170/170 mm, XT Di2, 16.63 kg

Kč171,621.79 Incl. Tax

~~Kč194,751.20~~ MSRP

-11%

Recommended supplier selling price in 2026

Color

Black

Size

M / l
L

Size charts

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Trek Slash 9.8 XT Di2 Dark Star: carbon enduro with Shimano electronics

The Gen 6 Trek Slash 9.8 XT Di2 is an OCLV Mountain carbon enduro bike, with 170 mm of travel at both ends, a high main pivot and the Shimano XT Di2 electronic drivetrain, weighing 16.63 kg in size M. RockShox ZEB Select+ and Vivid Select+, a 200 mm post and Brevard RSL tyres make it a complete bike. Its Dark Star/Dark Web colour pairs two blacks, gloss and matt, for an understated, refined finish.

Technical specifications

Frame	OCLV Mountain carbon, high main pivot with idler pulley, internal storage, adjustable head angle headset, Active Braking Pivot, ISCG 05, UDH, 148x12 mm
Suspension	RockShox ZEB Select+ Charger 3.1 RC2, 170 mm / RockShox Vivid Select+ 230x65 mm, 170 mm
Drivetrain	Shimano XT Di2 M8250 1x12, XT M8200 10-51 cassette, XT 30T chainset
Brakes	Shimano XT M8220 4-piston, RT86 203 mm rotors
Wheels / tyres	Bontrager Line Comp 30 / Brevard RSL SE 2.50, 29-inch front and 27.5 rear
Cockpit	Bontrager Line Pro carbon 820 mm handlebar, Line Pro 35 mm stem
Saddle / seatpost	Verse Short Comp / Line Dropper 200 mm
Weight	16.63 kg in size M (Trek figure, with tubeless sealant)

At a glance

✓ OCLV Mountain carbon	✓ 170 mm rear / 170 mm front
✓ Shimano XT Di2	✓ 200 mm dropper post
✓ Brevard RSL SE tyres	✓ 16.63 kg in size M

Who is it for?

For the regular enduro rider who wants a reliable, well-equipped carbon bike, able to go from regional races to all-day rides. It is also aimed at riders who appreciate Shimano's precision and want to move to electronic shifting.

The LVR workshop view

OCLV Mountain carbon, the enduro version. The Slash 9.8 brings carbon to the Gen 6 Slash range. The OCLV Mountain layup is designed for the impacts and stresses of a 170 mm bike, and the frame keeps the high main pivot with idler pulley, integrated protection and internal storage. Trek's lifetime warranty applies to the frame.

	OCLV Mountain (Slash 9.8 / 9.9)	Alpha Platinum (Slash 8 / 9)	Benchmark: Gen 7 Fuel LX
Level	Trek's mountain bike carbon	High-end aluminium	Enduro on a Fuel base
Construction	OCLV layup tuned for impact resistance	Hydroformed tubes, smoothed welds	Carbon or NEXT Platinum alloy
Reference bike	Slash 9.8 XT Di2: 16.63 kg (M)	Slash 8: 16.68 kg (M)	Fuel LX 9.8 XT Di2: 15.97 kg (M)
What it means	Lifetime frame warranty, higher-end builds	Cheaper to replace after a big crash	160 / 170 mm, conventional pivot

Put simply: at almost the same weight as the aluminium Slash 8, the 9.8 mainly brings Di2, a 200 mm post, a carbon handlebar and triple-compound RSL tyres. It is the most balanced build for riding hard every week.

Shimano XT Di2 keeps shifts precise even when the chain is under heavy tension, coming out of a corner for example. In enduro, the system reduces the risk of a torn cable or clogged housing; we update the firmware and configure the buttons at handover.

The 200 mm Line Dropper post gets the saddle completely out of the way on steep slopes: a real gain in freedom of movement. The Brevard RSL SE tyres, with triple compound and reinforced casing, grip well on the red earth of Lodève and resist sharp rocks.

Which Slash should you choose?

Model	Frame	Travel rear / front	Drivetrain	Weight (M)
Slash 8	Alpha Platinum alloy	170 / 170 mm	Shimano XT 1x12	16.68 kg
Slash 9.8 XT Di2	OCLV Mountain carbon	170 / 170 mm	Shimano XT Di2 1x12	16.63 kg
Slash 9.9 X0 AXS	OCLV Mountain carbon	170 / 170 mm	SRAM X0 AXS T-Type 1x12	16.53 kg
Fuel LX 9.8 XT Di2 (Gen 7)	OCLV Mountain carbon	160 / 170 mm	Shimano XT Di2 1x12	15.97 kg

Our take: barely lighter than the aluminium Slash 8 (16.63 kg versus 16.68 kg), but with Di2, carbon and better suspension. The Fuel LX 9.8 XT Di2 offers 160 / 170 mm at 15.97 kg.

LVR sizing advice

Offered here in ML (173 to 180 cm) and L (177 to 188 cm), both with a 200 mm post. The ranges overlap: between 177 and 180 cm, we compare the two sizes together.

Size	ML	L
Rider height (cm)	173-180	177-188
Inseam (cm)	81-86	84-89
Dropper post (mm)	200	200

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

Your questions

Slash or Fuel LX?	Slash for committed enduro and the high pivot; Fuel LX for more versatile, lighter enduro riding.
A 200 mm post?	Yes, in ML as in L; we check that the insertion suits your inseam.
Di2 updates?	We update the firmware and configure the controls in the workshop.
What about the double black?	Dark Star/Dark Web alternates gloss and matt areas; use a gentle cleaner.

The LVR Cycles verdict

A very complete carbon enduro bike that pairs Shimano electronics with effective suspension. Its Dark Star/Dark Web double black plays on discreet elegance.

Pros
+ Shimano XT Di2
+ 200 mm dropper post
+ Brevard RSL SE tyres

Cons
- Alloy Line Comp wheels
- Limited weight saving over the Slash 8

Why buy from LVR Cycles? As a Trek retailer in Béziers, we configure your Di2, set up the RockShox suspension and check the idler pulley at every service.

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-5333259

Data sheet