The Rail+ 9.9 is our top carbon enduro e-MTB made for your most epic adventures. Its robust carbon frame packs 160 mm of front and rear upgraded RockShox suspension and adjustable geometry you can tune to how and where you ride. It comes equipped with a Bosch CX Line motor that delivers serious torque for ripping up climbs and a huge 800 Wh RIB 2.0 removable integrated battery. It's topped off with all the bells and whistles you want – like carbon wheels and a wireless SRAM X0 transmission.

It's right for you if...

You want a big, power-packed e-bike that's built for massive adventure and doesn't skimp on choice parts. You need plenty of travel for rough and rowdy terrain, a powerful motor that crushes climbs and massive battery to keep you going on your longest rides yet. Upgrades matter, and you want SRAM's top wireless transmission and the added benefit of a RockShox suspension package.

The tech you get

An OCLV Mountain Carbon frame with Bosch Performance CX system (85 Nm, 250 W) and a massive 800 Wh RIB 2.0 removable integrated battery. A 160 mm RockShox ZEB Ultimate fork with DebonAir spring and Charger 3 RC2 damper, and RockShox Super Deluxe rear shock. Tubeless Ready Bontrager Line Pro 30 carbon wheels, SRAM's X0 AXS wireless electronic transmission that shifts clean even under load, plus SRAM Maven hydraulic disc brakes for stopping on a dime and a RockShox Reverb AXS dropper post.

The final word

The Rail+ 9.9 is the cream of the crop for epic e-bike adventures. It delivers an upgraded suspension package, a powerful motor for crushing big climbs and a massive battery that keeps you going mile after mile, plus, RockShox TyreWiz. This beast of a bike is built to deliver your every dream.

Frameset
Frame    OCLV Mountain Carbon main frame, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9 mm seat tube, ABP, UDH Boost148, 12 mm thru axle, 160 mm travel
Fork    Rockshox ZEB Ultimate, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 160 mm travel
Shock    RockShox Super Deluxe Ultimate RC2T, 205x65 mm
Max compatible fork travel    180 mm

Wheels
*Wheel front    Size: S
Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 27.5"
Size: M, L, XL
Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29"
Wheel rear    Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless-Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 27.5"
Skewer rear    Bontrager Switch thru-axle, removable lever
*Tyre    Size: S, M, L, XL
Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 27.5x2.50"
Size: M, L, XL
Bontrager Brevard RSL SE, Tubeless Ready, triple compound, aramid bead, 60 tpi, 29x2.50"
Tyre part    Bontrager TLR sealant, 180 ml/6 oz
Rim strip    Bontrager TLR
Max tyre size    Frame: 27.5x2.60", Fork: See manufacturer

E-system
Battery    Bosch PowerTube 800 Wh, smart system
Charger    Bosch standard 4A, 230V, smart system
Controller    Bosch System Controller BRC3100, smart system
Motor    Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)

Drivetrain
Rear derailleur    SRAM X0 Eagle AXS, T-Type
Crank    SRAM X0 Eagle, 160 mm length
Cassette    SRAM Eagle XS-1295, T-Type, 10-52, 12-speed
Chain    SRAM X0 Eagle, T-Type, 12-speed
Pedal    VP-536 nylon platform
Max. chainring size    1x: 36T

Components
Saddle    Verse Short Comp, steel rails, 145 mm width
*Seatpost    Size: S
RockShox Reverb AXS, 100 mm travel, wireless, 34.9 mm, 340 mm length
Size: M, L, XL
RockShox Reverb AXS, 170 mm travel, wireless, 34.9 mm, 480 mm length
Handlebar    Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 780 mm width
Grips    Bontrager XR Trail Elite, nylon lock-on
Stem    Bontrager Line Pro, 35 mm, Blendr-compatible, 0-degree, 45 mm length
Head set    Integrated cartridge bearing, 1-1/8" top, 1.5" bottom, angle adjust cup compatible
Brake    SRAM Code Silver 4-piston hydraulic disc
*Brake rotor    Size: S, M, L, XL
SRAM 6-bolt, 200 mm
Size: S, M, L, XL
SRAM HS2, 6-bolt, 220mm
Rotor size    Max brake rotor sizes – Frame: 220 mm, Fork: see fork manufacturer

Accessories
Mudguard    Trek 27.5" custom fender

Weight
Weight    M - 23.98 kg / 52.87 lbs (with TLR sealant, no tubes)
Weight limit    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.