2023 Rail 9.9 XX1 AXS Gen 4 is no longer available.

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Trek 2023 Rail 9.9 XX1 AXS Gen 4

£12,775.00

Colour: DEEP SMOKE
Part Number:

5285896

GTIN:

601842840078

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.

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.

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 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.
- The new System Controller shows your currently-selected assist level and remaining battery level. It's neatly integrated into the top tube for maximum protection and a sleek look.
- Bosch's new smart system gives you all the same power and responsiveness with a new discrete Mini Remote that's streamlined with just the controls you need at your fingertips to toggle through assist levels or change to walk mode
- TyreWiz and AirWiz let you confirm that your tyres, fork and shock are at the right pressure at a glance. No more getting the pump or gauge out just to check
- Intelligent eMTB and eMTB Lite modes adjust the assist automatically based on your input to give you just the right amount of power for your ride
- The new frame is extra stout with a 34.9 mm seat tube to accommodate more robust dropper posts and an oversized head tube that works with burly e-MTB-optimised forks for less flex and more precise steering

Bosch Performance Line CX motor
The Bosch Performance Line CX sets the standard for eMTB performance with up to 85 Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.

Removable Integrated Battery
RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It's the most convenient way to remove your battery for transport, security or just easier charging.



Bosch Mini Remote
The compact, ergonomic Mini Remote lets you easily change assist level, activate Walk mode, or turn on optional lights, all without moving your hand off the handlebar. Plus, it's wireless and connects with your System Controller via Bluetooth



Bosch System Controller
The System Controller gives you a quick overview of your assist mode and battery level without distracting you from the ride. It's integrated into the top tube so it's out of the way but still easy to see with LED indicators. It also connects to the eBike Flow app via Bluetooth for accessing ride stats and performing system updates.



RockShox AirWiz and Quarq TireWiz
TyreWiz monitors your tyre pressure while AirWiz monitors your fork and shock pressure. Set your desired pressure in the SRAM AXS app and then just check the lights before each ride - red means you need a pump, green means go and ride.

Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Why buy from eBike-Centre?

Specialist electric bike experts for 15 years

We do more than simply sell electric bikes. We help riders choose the right bike, set it up properly and support them long after they leave the store.

Learn more about eBike-Centre

Why customers choose us

15+

Years Experience

Specialist electric bike retailer since 2011.

200+

E-Bikes In Store

One of the UK’s widest specialist e-bike selections.

Test

Ride Before You Buy

Try a range of bikes at our Chichester showroom.

Free

Mainland Delivery

Free mainland delivery on bikes over £1,500.

More than just an online bike shop

Every bike is fully built, checked and prepared by our workshop team before delivery or collection. We also provide expert after-sales support, servicing and warranty assistance.

As an independent retailer, we offer honest advice tailored to how and where you actually ride, without pressure and without jargon.

Included with your purchase

• Free mainland bike delivery on bikes over £1,500

• Complimentary 8-week or 200-mile service

• Cycle to Work schemes accepted

• Finance options available

• Price Match Promise for extra confidence

Need help choosing the right bike?

Whether you are buying your first e-bike or upgrading to something more capable, our team is here to help you choose the right bike for the way you ride.

Read more about eBike-Centre View delivery information
Cycle to Work savings

Save up to 47% off this bike with Cycle to Work

You may be able to save a significant amount on this bike by purchasing through a Cycle to Work scheme. At eBike-Centre, we accept Gogeta, Green Commute Initiative, Cyclescheme, Cycle2Work, Halfords, Vivup, Cycle Solutions and other major providers.

Learn more about Cycle to Work

Calculate your potential saving

Use the Gogeta Cycle to Work calculator below to estimate how much you could save. Savings vary depending on your income, employer, tax rate and chosen scheme.

How it works

1. Choose the bike and any eligible accessories you would like from eBike-Centre.

2. Apply through your employer’s Cycle to Work provider.

3. Once approved, send us your voucher and we will complete your order.

4. We prepare your bike for collection or delivery.

Need a Cycle to Work quote?

We can provide Cycle to Work quotes for any value, including higher-value electric bikes. Some providers may have their own rules, fees or exclusions, so please contact us before applying if you are unsure.

Email us for a quote Call 01243 697547
Price Match Promise

Found it cheaper elsewhere?

We regularly check our prices against competitors so you can shop with confidence. If you find this bike or accessory advertised cheaper elsewhere, let us know and we will review it for a possible price match.

View full Price Match Promise

How our price match works

If you find the same item cheaper at another eligible UK retailer, simply contact us with the details. We will review the request and, if approved, help you purchase at the matched price.

1

Send us the details

Email or call us with the product, competitor price and where you found it.

2

We review the request

We check stock availability, product codes and whether the item qualifies under our policy.

What qualifies for a price match?

• The item must be identical, including size and colour

• The competitor must have the item in stock

• The price must be publicly advertised and include delivery charges

• The product must be brand new and supplied through official UK channels

Need help or want to request a price match?

Our team can quickly review most requests by phone or email. We approve the vast majority of eligible price match requests.

Email sales@ebike-centre.co.uk Read full Price Match Promise

Frame Size S, UNI, Carbon, 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
Wheel Size Front 29
Wheel Size Rear 29
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
Fork Unknown
Gears DERAILLEUR, Sram, 1 Gears
Tyres BONTRAGER,
Pedals UNBRANDED,
Wheels BONTRAGER, Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29" Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12 mm thru-axle, 29"
Shifters SRAM, SRAM Eagle AXS, wireless, 12-speed // SRAM Eagle AXS, wireless, 12 speed,
Kickstand UNKNOWN, Unknown
Front Brake SH, SRAM 6-bolt, 200 mm // SRAM HS2, 6-bolt, 220mm Max brake rotor size, Disc brake with hydraulic actuation
Rear Brake SH, SRAM 6-bolt, 200 mm // SRAM HS2, 6-bolt, 220mm Max brake rotor size, Disc brake with hydraulic actuation
Rear Derailleur ,
Crankset E_THIRTEEN, E*thirteen E*spec Race carbon, 165 mm length
Chain SRAM, SRAM XX1 Eagle, 12-speed
Handlebar BONTRAGER, Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 780 mm width
Stem BONTRAGER, Bontrager Line Pro, 35 mm, Blendr-compatible, 0-degree, 45 mm length
Bartape / Grips BONTRAGER
Seatpost ROCKSHOX
Saddle BONTRAGER, Bontrager Arvada, austenite rails, 138 mm width
Front Light UNKNOWN
Rear Light UNKNOWN
Battery Capacity 625
Battery Brand BOSCH
Battery Model BOSCH
Drivetrain Brand Bosch
Sensor Type PEDALFORCE
Brand Trek
Barcodes 601842839966, 601842839973, 601842839980, 601842839997, 601842840009, 601842840016, 601842840023, 601842840030, 601842840047, 601842840054, 601842840061, 601842840078
SKUs / Part Numbers 5285896, 5285897, 5285898, 5285899, 5285900, 5285901, 5285902, 5285903, 5285904, 5285905, 5285906, 5285907

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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