Trek Rail 9.9 XX1 AXS Gen 4
Trek Rail 9.9 XX1 AXS Gen 4
Trek Rail 9.9 XX1 AXS Gen 4

Trek Rail 9.9 XX1 AXS Gen 4

Sale price £12,950.00
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The Rail 9.9 is our best long-travel electric mountain bike. You get an extra-beefy carbon frame, unbelievably smooth RockShox suspension, SRAM’s best wireless electronic drivetrain and a powerful Bosch smart system Performance Line CX motor with an extra-long range battery and the new Mini Remote. The new System Controller display sits almost flush with the top tube for a sleek look wherever you roll that stays out of the way when you’re riding hard.

 



It's right for you if...

You want to spare no expense on your e-MTB experience. You want the most adjustability, smoothest performance, longest range and most high-tech electric assist you can get. You love customisation and want all the cool features of the Bosch smart system, and you want wireless electronic shifting.

The tech you get

An upgraded OCLV Mountain Carbon frame with longer reach and oversized head tube and seat tube for maximum strength. An extra-long-range 750 Wh battery, ultra-adjustable RockShox ZEB Ultimate fork, RockShox Super Deluxe Ultimate Thru Shaft shock and SRAM XX1 AXS drivetrain. You get Bosch’s smart system Performance Line CX with a new Mini Remote and Bluetooth® System Controller display that’s integrated into the top tube, plus AirWiz pressure monitoring.

The final word

The Rail 9.9 is all about top-shelf tech. RockShox’s best enduro fork, Bosch’s biggest battery, the smooth shifting of XX1 AXS, an updated frame and AirWiz pressure monitoring, plus Bosch’s latest tech with smart system.


Frame OCLV Mountain Carbon main frame, 1.8'' lower head tube, Bosch System Controller-compatible, Removable Integrated Battery (RIB), Knock Block 2.0, guided internal routing, 34.9 mm seat tube, magnesium rocker link, Motor Armour, Mino Link, ABP, Boost148, 12 mm thru-axle, 150 mm travel
Fork RockShox ZEB Ultimate, AirWiz, DebonAir spring, Charger 3 RC2 damper, 1.8" oversized tapered steerer, eMTB optimised crown, 44 mm offset, Boost110, 15 mm Maxle Stealth, 160 mm travel
Shock RockShox Super Deluxe Thru Shaft, AirWiz, 230 mm x 57.5 mm
Max compatible fork travel 170 mm (580 mm axle-to-crown)
Wheels
Wheel front Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless-Ready, 6-bolt, Boost110, 15 mm thru-axle
Wheel rear Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12 mm thru-axle
Skewer rear Bontrager Switch thru-axle, removable lever
*Tyre Size: S, M, L, XL
Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50"
Size: S, M, L, XL
Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50"
*Tyre part Size: S, M, L, XL
Bontrager TLR sealant, 180 ml/6 oz
Size: S, M, L, XL
Quarq TyreWiz tyre pressure monitors
Max tyre size Frame: 29x2.60" Fork: See manufacturer
Drivetrain
Shifter SRAM Eagle AXS, wireless, 12 speed
Rear derailleur SRAM XX1 Eagle AXS
Crank arm E*thirteen E*spec Race carbon, 34T, 165 mm length
Chainring SRAM X-SYNC 2, 34T, alloy
Cassette SRAM Eagle XG-1299, 10-52, 12-speed
Chain SRAM XX1 Eagle, 12-speed
Pedal Wellgo VPE-536
Max. chainring size 34T
Components
Saddle Bontrager Arvada, austenite rails, 138 mm width
*Seatpost Size: S
RockShox Reverb AXS, 100 mm travel, wireless, 34.9 mm, 340 mm length
Size: M
RockShox Reverb AXS, 150 mm travel, wireless, 34.9 mm, 440 mm length
Size: 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, Knock Block, Blendr-compatible, 0-degree, 45 mm length
*Brake rotor Size: S, M, L, XL
SRAM 6-bolt, 200 mm
Size: S, M, L, XL
SRAM HS2, 6-bolt, 220mm
Brake Set SRAM Code RSC hydraulic disc
Rotor size Max brake rotor sizes: Front see fork manufacturer, rear 200 mm
Accessories
*Battery Size: S
Bosch PowerTube 625Wh, smart system
Size: S, M, L, XL
SRAM eTap battery pack (with charger)
Size: M, L, XL
Bosch PowerTube 750Wh, smart system
Charger Bosch standard 4A, 230V, smart system
*Controller Size: S, M, L, XL
Bosch System Controller BRC3100, smart system
Size: S, M, L, XL
Bosch Mini Remote BRC3300, smart system, 22.2 mm
Motor Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
Electronics SRAM AXS aux power cable
Weight
Weight M - 23.60 kg / 52.03 lbs
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lbs).