The 2023 Rail 9.9 XX1 AXS Gen 4 S SATIN BAJA YELLOW is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
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.
When you order with John Atkins Cycles you get your purchase posted as per the below charges list:
Shoes and helmets postage charge £7.99
*Parts under:
£20 value £4 postage
£21- £100 £7 postage
£101 upwards post free
*Bikes under £1100 to the postcodes (CV, LE and B) £30 charge
*Bikes over £1100 to postcodes (CV, LE and B) free delivery
Bikes will hand deliver in our own van
Any other area’s in the UK only email for a quote
UK mainland only
via the contact us
You have the option on all orders to upgrade the postage to a faster service.
We require that bicycles are collected from the store fully assembled. All bikes go through a Pre-Delivery Inspection to ensure that they are ready to ride, and all road bikes include a bike fitting to ensure that your new bike is set up perfectly for you. Please see the bike fitting page for further information.
If we do not have an item you have ordered in stock then we will contact you straight away to let you know. Most items can be restocked within a week, however if this is not possible we will let you know.
If for any reason you wish to contact us regarding an order you can do so via either the contact us form or our email address: [email protected].
We are sure you will be delighted with your purchase, but if you are not, we accept returns and we will refund the price of the product providing it is returned in perfect resale condition within 14 days. If you would prefer an exchange for a different item (size, colour, etc) and we have the item in stock, we can arrange this once the original item is returned. You are responsible for the cost of sending the item back to us, and in the event of an exchange, any additional postage of sending out a new item.
If you believe an item to be faulty and you want to pursue a warranty claim, please return the item with a copy of the original proof of purchase. If upon inspection we agree it's a warranty issue we will repair or replace the item at our discretion and return it to you carriage free. If a warranty claim has not been cleared with us and you wish to have the item returned to you, there will be a postage charge for this. If you are returning an item to us, we cannot be responsible for the return postage. It is important to include a copy of the original proof of purchase, contact details and a description of the problem.
** Please note padded shorts and short liners are not refundable for hygiene reasons. **
If an item does not arrive, we ask that you follow the Royal Mail claims procedure. Please email [email protected] for more details.
We try to provide size guides where possible however it is the customer's responsibility to make sure the sizing is correct. We suggest you try an item for size where possible to ensure it will fit before ordering, whether it is a bike or item of clothing. You can call us on 01926 430211 for help with sizing.
*Please note there is a surcharge for super heavy or large items (for example, turbo trainers).
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 |
Colours | DEEP SMOKE, LAVA, SATIN BAJA YELLOW |
Sizes | L, M, S, XL |
Brand | Trek |
Model Year | 2023 |
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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We offer 10 days free cover with all new bikes purchased, provided by our insurance partner VeloLife. You will be covered for the first 10 days of ownership against theft and accidental damage, so you can purchase with confidence.
Give yourself the comfort of no obligation free insurance, make sure you have peace of mind from the moment you leave the store. If anything happens to the bike in the first 10 days of ownership, know you are covered!