Trek Rail 9.9 Cxr Gen 4 Mountain Bike
Performance Line CX Race motor
The limited-edition Race motor delivers explosive acceleration, full throttle jump out of corners, and the fastest possible ride. The Performance Line CX Race Edition is the perfect choice for e-MTB racers and expert riders who want more power off of the starting line.
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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 tire 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 ride.
Bosch eBike Flow app
The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motor’s assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. There’s even handy features like navigation and service reminders.
Shimano XTR
Designed to meet the highest level of competitive mountain bike racing needs, with second to none performance and experience, Shimano XTR M9100 brings lightweight, high-end versatility to XC, enduro, and marathon racing.
| 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 |
|---|---|
| Wheel rear | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| *Tire | Size: S, M, L, XL Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29×2.50” |
| Size: S, M, L, XL Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29×2.50” | |
| *Tire part | Size: S, M, L, XL Bontrager TLR sealant, 6oz |
| Size: S, M, L, XL Quarq TyreWiz tire pressure monitors |
| Shifter | Shimano XTR M9100, 12 speed |
|---|---|
| Rear derailleur | Shimano XTR M9100, Shadow Plus, long cage, 51T max cog |
| Crank | E*thirteen E*spec Race carbon, 34T, 165mm length |
| Chainring | E*thirteen E*spec, 34T alloy, 55mm chainline |
| Cassette | Shimano XTR M9101, 10-51, 12 speed |
| Chain | Shimano Dura-Ace/XTR M9100, 12 speed |
| Pedal | VP-536 nylon platform |
| Saddle | Bontrager Arvada, austenite rails, 138mm width |
|---|---|
| *Seatpost | Size: S Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length |
| Size: M Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length | |
| Size: L Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length | |
| Size: XL Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length | |
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width |
| Grips | Bontrager XR Trail Elite, nylon lock-on |
| Stem | Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length |
| Brake | Shimano XTR M9120 4-piston hydraulic disc |
| Brake rotor | Shimano RT86, 6-bolt, 203mm |
| *Battery | Size: S Bosch PowerTube 625Wh, smart system |
|---|---|
| Size: M, L, XL Bosch PowerTube 750Wh, smart system | |
| Charger | Bosch standard 4A, 110V, 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, 22.2mm | |
| Motor | Bosch Performance Line CX Race Edition, smart system, magnesium motor body, 85 Nm, 20 mph or 32 km/h max assist (25 km/h max assist in EU and APAC) |
| Weight | M – 23.05 kg / 50.82 lbs |
|---|
| Size | Rider Height | Inseam |
|---|---|---|
| S | 155 – 165 cm 5’1″ – 5’5″ | 74 – 78 cm 29″ – 31″ |
| M | 165 – 176 cm 5’5″ – 5’9″ | 79 – 83 cm 31″ – 33″ |
| L | 177 – 188 cm 5’10” – 6’2″ | 84 – 89 cm 33″ – 35″ |
| XL | 188 – 195 cm 6’2″ – 6’5″ | 89 – 91 cm 35″ – 36″ |
Espen –
Easy to order, all items in stock, quick delivery and PayPal credit to boot – what’s not to like?
Cristian –
Great price and speedy delivery. Think DPD are my preferred couriers as they give a 1 hour time slot which they usually keep too. Royal Mail seem a little antiquated. Only my opinion based on other experiences.
ROGER –
Ease of ordering, prompt delivery. Everything you could ask for when online shopping.