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Rail 9.9 is Trek's best long-travel electric mountain bike.
Rail 9.9 is Trek's best long-travel electric mountain bike.
Trek

Trek Rail+ 9.9 XO AXS Carbon Electric Mountain Bike in Black Smoke

£8,500.00
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

Returns - Any product can be returned to us within 28 days if the product is faulty, provided it has not been used or fitted, and is returned in its original packaging with a valid proof of purchase. If you wish to return any product you must inform us within 14 days of the day you receive your goods.

Online purchases - Can be returned for any reason (excludes special order products) provided it has not been used or fitted, and is returned in its original sealed packaging with a valid proof of purchase, to store in person or by post as long as we are notified within 14 days of receipt of the goods. The cost of any postage will be deducted from any refund for unwanted products. Click & Collect customers can buy with confidence knowing they can try the item before leaving the store. Should you decide it’s not right for you, it can be conveniently exchanged or refunded straight away in the store, or you still have up to 28 days to return it if you take it away (as long as you inform us within 14 days).

Refunds - Will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase, Cheque payments will be refunded in cash but due to banking restrictions can only be refunded at least 14 days after the original purchase date. Due to the high incidence of fraud we regret that we are unable to offer any refund without a valid receipt. If you wish to return your item by post, it is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel. Return shipping costs are non-refundable. If the item is being returned due to our error then any postage will be reimbursed upon assessment. It can take 5 days for your parcel to reach us dependent on the courier’s service that is used. Once we receive your parcel we will inspect and process your return within 2 working days. Refunds can take up to 5 days with your bank to appear in your account. You will receive an email update upon the completion for your return. If you have made a purchase using our finance option or through one of the cycle to work programs and would like to return your purchase please contact us on 01283 544669. (Purchases paid for using PayPal in GBP can be returned for a refund by post or in store. Your postage will be refunded through PayPal – there is a limit to the amount PayPal will refund. For full terms & conditions visit the
PayPal Returns Page)

Trek Rail+ 9.9 XO AXS Carbon Electric Mountain Bike in Black Smoke

Season:2026

Brand:Trek

Code:48472BLK

Rail 9.9 is Trek's 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 customization 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 750Wh battery, ultra-adjustable RockShox ZEB Ultimate fork, RockShox Super Deluxe Ultimate Thru Shaft shock, and SRAM's wireless X0 AXS transmission. 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.

Rail 9.9 is all about top-shelf tech. The best enduro fork from RockShox, Bosch's biggest battery, the smooth shifting of X0 AXS, an updated frame, and AirWiz pressure monitoring, plus Bosch's latest tech with smart system.

Technical Information
  • 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, 34.9mm seat tube, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
  • Fork
    RockShox ZEB Ultimate, AirWiz, DebonAir spring, Charger 3 RC2 damper, 1.8'' oversized tapered steerer, eMTB optimized crown, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
  • Shock
    RockShox Super Deluxe Thru Shaft, AirWiz, 230mm x 57.5mm
  • Max Compatible Fork Travel
    170mm (580mm axle-to-crown)
  • Wheel Front
    Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
  • Wheel Rear
    Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle, 29''
  • Skewer Rear
    Bontrager Switch thru axle, removable lever
  • Tire
    Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
  • Tire Part
    Bontrager TLR sealant, 6oz
  • Rim Strip
    Bontrager TLR
  • Max Tire Size
    Frame: 29x2.60", Fork: See manufacturer
  • Battery
    Bosch PowerTube 625Wh, smart system
  • Charger
    Bosch standard 4A, 110V, smart system
  • Controller
    Bosch System Controller BRC3100, smart system
  • Motor
    Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
  • Shifter
    SRAM AXS POD Ultimate, paired with dropper
  • Rear Derailleur
    SRAM X0 Eagle AXS, T-Type
  • Crank
    SRAM X0 Eagle, 160mm length
  • Chainring
    SRAM XX T-Type, 34T, steel
  • 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: 34T
  • Saddle
    Bontrager Arvada, austenite rails, 138mm width
  • Seatpost
    RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length
  • Handlebar/Stem (Integrated)
    Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm stem length
  • Grips
    Bontrager XR Trail Elite, nylon lock-on
  • Brake
    SRAM Code Silver 4-piston hydraulic disc
  • Brake Rotor
    SRAM 6-bolt, 200mm
  • Rotor Size
    Max brake rotor sizes - Frame: 200mm, Fork: see fork manufacturer
  • Weight
    M - 23.93 kg / 52.76 lbs (with TLR sealant, no tubes)
  • Weight Limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
Sizing Information
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