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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 to get you back up the mountain.
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.
Specs
*Please note – spec applies to all sizes unless listed separately
| 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 Ultimate RT, 230 mm x 57.5 mm |
| Max compatible fork travel | 170mm (580mm axle-to-crown) |
| Wheel front | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29" |
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| Wheel rear | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12 mm thru-axle, 29" |
| 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" |
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| *Tyre part | Size: S, M, L, XL Bontrager TLR sealant, 180 ml/6 oz |
| Size: S, M, L, XL Quarq TyreWiz tyre pressure monitors |
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| Rim strip | Bontrager TLR |
| Max tyre size | Frame: 29x2.60", Fork: See manufacturer |
| *Battery | Size: S Bosch PowerTube 625 Wh, smart system |
|---|---|
| Size: S, M, L, XL SRAM eTap battery pack (with charger) |
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| Size: M, L, XL Bosch PowerTube 750 Wh, smart system |
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| 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 |
| *Shifter | Size: S, M, L, XL SRAM Eagle AXS, wireless, 12-speed |
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| Size: S, M, L, XL SRAM Eagle AXS, wireless, 12 speed |
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| Rear derailleur | SRAM XX1 Eagle AXS |
| Crank | E*thirteen E*spec Race carbon, 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 | VP-536 nylon platform |
| Max. chainring size | 1x: 34T |
| 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 |
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| Size: L, XL RockShox Reverb AXS, 170 mm travel, wireless, 34.9 mm, 480 mm length |
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| 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, 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 |
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| Brake Set | SRAM Code RSC 4-piston hydraulic disc |
| Rotor size | Max brake rotor sizes - Frame: 200mm, Fork: see fork manufacturer |
| Electronics | SRAM AXS aux power cable |
|---|
| 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). |
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.