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Carbon full-suspension electric mountain bike Trek Rail+ 9.8 GX AXS pennyflake 12-speed

Carbon full-suspension electric mountain bike Trek Rail+ 9.8 GX AXS orange: Bosch CX 800 Wh, Fox 38, 24.18 kg

$7,134.81 Incl. Tax

~~$8,584.29~~ MSRP

-16%

Recommended supplier selling price in 2026

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Orange

Size

Size charts

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Trek Rail+ 9.8 GX AXS Pennyflake: brake hard, descend for longer

Built for long, steep descents, the Trek Rail+ 9.8 GX AXS relies on four-piston SRAM Maven Bronze brakes, a 160 mm Fox 38 fork and an OCLV Mountain carbon main frame. Its Bosch Performance Line CX motor draws on an 800 Wh battery, and Trek quotes 24.18 kg in size M. The Pennyflake colourway, a sparkling copper orange, catches the light on every bend.

Technical specifications

Frame	OCLV Mountain carbon main frame, removable RIB 2.0 battery, Motor Armor, adjustable head angle, Mino Link, adjustable suspension leverage, UDH, Boost148
Motor	Bosch Performance Line CX, 85 Nm (up to 100 Nm via the eBike Flow app), 250 W rated, assist up to 25 km/h
Battery	Integrated, removable Bosch PowerTube 800 Wh (RIB 2.0)
Controls / display	Bosch System Controller BRC3100, smart system
Suspension	Fox Performance Elite Float 38 GRIP X 160 mm / Fox Performance Elite Float X 205 x 65 mm, 160 mm
Drivetrain	Wireless SRAM GX Eagle AXS T-Type 1x12, GX 160 mm cranks, XS-1275 10-52 cassette
Brakes	SRAM Maven Bronze 4-piston hydraulic, HS2 200 and 220 mm rotors
Wheels / tyres	Bontrager Line Comp 30 / Brevard RSL SE 29 x 2.50 front, 27.5 x 2.50 rear
Cockpit	Bontrager Line Pro carbon 780 mm handlebar, Line Pro 45 mm stem
Saddle / seatpost	Verse Short Comp / Line Dropper 170 mm (M) or 200 mm (XL)
Weight	24.18 kg in size M (Trek figure, with tubeless sealant)

At a glance

✓ Wireless SRAM GX AXS T-Type	✓ Fox Performance Elite 160 mm
✓ Bosch CX, 800 Wh	✓ Maven Bronze 4-piston brakes
✓ Line Pro carbon handlebar	✓ 24.18 kg in size M

Who is it for?

For the rider who uses the motor to climb back up and string together committing descents, and who demands consistent braking over several hundred metres of descent. It will appeal to the mountain biker who rides the enduro trails around Lodève or the Salagou.

The LVR workshop view

OCLV Mountain carbon, wireless edition. The Rail+ 9.8 GX AXS keeps the 5th-generation OCLV Mountain main frame and fits it with a radio-controlled SRAM derailleur: no more housing rubbing inside the frame, a drivetrain mounted on the UDH hanger and identical shifting whatever the cable tension. With the 800 Wh battery, carbon remains the best base for keeping the bike at 24.18 kg in M.

	Carbon Rail+ (9.7 / 9.8)	Aluminium Rail+ (5 / 8)	Carbon Slash+ (TQ)
Frame	OCLV Mountain main frame	Alpha Platinum	OCLV Mountain
Drive system	Bosch CX, PowerTube 800 Wh	Bosch CX, PowerTube 800 Wh	TQ HPR60, 580 Wh
Weight (M)	23.73 to 24.18 kg	24.78 to 25.08 kg	21.58 to 21.83 kg
What it means	Lighter chassis, same motor	Gentler budget, robust frame	Gentler assist, livelier bike

Put simply: a carbon Rail+ with Fox Performance Elite suspension, Maven brakes and a GX AXS derailleur, for the mountain biker who wants the convenience of wireless.

The Maven Bronze brakes work on one 220 mm and one 200 mm rotor: on a 24 kg bike, the extra diameter limits heat build-up and keeps the lever feel consistent all the way down. We recommend a bleed at the start of the season, as the summer heat around Béziers puts brake fluid under heavy strain.

The triple-compound Brevard RSL SE tyres, 29 at the front and 27.5 at the rear, combine grip with pinch-flat resistance on the sharp garrigue rock. The Line Pro carbon handlebar filters out some of the vibration reaching your hands. The motor stops helping at 25 km/h, as European rules require for a 250 W rated motor.

Which Rail+ should you choose?

Model	Motor / battery	Rear / front travel	Drivetrain	Weight (M)
Rail+ 9.7 XT	Bosch CX / 800 Wh	160 / 160 mm	Shimano XT / SLX 12-speed	23.73 kg
Rail+ 9.8 GX AXS	Bosch CX / 800 Wh	160 / 160 mm	Wireless SRAM GX AXS	24.18 kg
Rail+ 9.8 XT Di2	Bosch CX / 800 Wh	160 / 160 mm	Wireless Shimano XT Di2	23.98 kg
Slash+ 9.9	TQ HPR60 / 580 Wh	170 mm fork	Wireless SRAM X0 AXS	21.83 kg

Our take: for descending, this Rail+ 9.8 GX AXS offers Maven brakes and a Fox 38 fork that the Rail+ 9.7 XT (23.73 kg in M) doesn't have, for 450 g more. The Slash+ 9.9 TQ, lighter at 21.83 kg, keeps 170 mm up front but has less power.

LVR sizing advice

This model is available in M and XL. The dropper goes from 170 to 200 mm between the two; if you are around 180 cm tall, come and compare in store, as L is not offered in this colourway.

Size	M	XL
Rider height (cm)	165-177	188-195
Inseam (cm)	79-83	89-91
Dropper post (mm)	170	200
Front / rear wheels (in)	29 / 27.5	29 / 27.5

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

Your questions

Why a 220 mm rotor?	A larger rotor dissipates heat better and increases power, which is useful on an e-MTB.
Are Maven brakes easy to bleed?	Yes, with the right kit; we do it in the workshop and check the pads at the same time.
Does the motor help on descents?	No, it only assists pedalling and cuts out above 25 km/h.
Is the orange a metallic flake finish?	Yes, Pennyflake blends a copper orange with fine flakes that sparkle in the sun.

The LVR Cycles verdict

A carbon Rail+ that puts safety on descents first, thanks to Maven brakes and a Fox 38 fork. The sparkling copper orange gives it a warm, bold style.

Pros
+ Maven brakes and 220 mm rotor
+ Triple-compound Brevard RSL tyres
+ Sparkling copper orange

Cons
- 24.18 kg in M
- Sizes M and XL only

Why buy from LVR Cycles? In Béziers, we bleed your Maven brakes, set up your tyres tubeless and handle the Bosch diagnostics and Fox servicing for your Rail+.

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-5329086

Data sheet