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Trek Rail 9.7 Gen 4

Trek Rail 9.7 Gen 4
  • Color: Power Surge
Color: Power Surge
Size: Select size
Wheel Size: 29-inch
Please select options Unavailable
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Rail 9.7 is a long-travel carbon electric mountain bike that gets you to the fun stuff faster. It's decked out with an upgraded frame that offers more reach for serious stability on the trail, and a Bosch smart system drive unit with a beefy 750Wh battery that makes the climbs go by fast, and the laps feel endless.


You’re looking for a super capable long-travel e-MTB that’s built to conquer techy runs and big drops. You want the light weight and responsive ride of an OCLV Mountain Carbon frame with a high-powered motor to get to more descents faster.


An OCLV Mountain Carbon frame with a 750Wh Removable Integrated Battery, a 160mm RockShox Domain fork, 150mm RockShox Deluxe Select+ rear shock, and Bosch's latest smart system Performance Line CX capable of speeds up to 25KM/H, with a Bluetooth® LED remote for connectivity and activity tracking through the eBike Flow app. A 1x12 Shimano SLX/XT drivetrain, Bontrager Line dropper post, 4-piston brakes for confident descents, and tuneless ready Bontrager Line Comp 30 29er wheels.


Rail 9.7 hits the sweet spot of carbon performance and amazing value. It’s spec'd with quality trail-specific parts and a powerful Bosch drive system so you can send it through the rough stuff and motor right back up for another run.


- Rail Gen 4 features a pocket in the top tube, so you can easily upgrade to Bosch’s latest System Controller and Mini Remote if you’re craving a cleaner setup
- Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools, and lets you mount a water bottle cage
- Bosch's smart system gives you all the same power and responsiveness with a Bluetooth-connected LED remote and eBike Flow app that puts even more control and customization at your fingertips
- The controller has Walk Assist and an intelligent e-MTB mode that automatically delivers the right amount of power based on your terrain
- The frame is extra-stout with a 34.9mm seat tube to accommodate more robust dropper posts, and an oversized head tube that works with burly e-MTB optimized forks for less flex and more precise steering

Frame size letterSmallSmallMediumMediumLargeLargeX-LargeX-Large
Geometry positionHigh LowHighLowHighLowHighLow
Wheel size29" 29"29"29"29"29"29"29"
A — Seat tube41 41424245455050
B — Seat tube angle71.2° 70.8°71.2°70.8°71.2°70.8°71.2°70.8°
Effective seat tube angle77.1° 76.7°77.1°76.7°77.1°76.7°77.1°76.7°
C — Head tube length10.5 10.5111112.512.51414
D — Head angle64.6° 64.2°64.6°64.2°64.6°64.2°64.6°64.2°
E — Effective top tube57.9 586060.163.863.967.167.3
F — Bottom bracket height34.6 34.134.634.134.634.134.634.1
G — Bottom bracket drop2.7
H — Chainstay length44.7 44.844.744.844.744.844.744.8
I — Offset4.3
J — Trail13 13.31313.31313.31313.3
K — Wheelbase121.3 121.4123.6123.6127.7127.8131.3131.4
L — Standover76.1 75.677.376.87776.576.876.3
M — Frame reach43.6 43.245.645.249.148.752.151.7
N — Frame stack62.5 62.862.963.364.364.665.666
SizeRider Height (cm)Rider Height (in)Inseam (cm)Inseam (in)
Small155 - 165 cm 5'1" - 5'5"74 - 78 cm29 - 31
Medium165 - 176 cm 5'5" - 5'9"79 - 83 cm31 - 33
Large177 - 188 cm 5'10" - 6'2"84 - 89 cm33 - 35
X-Large188 - 195 cm 6'2" - 6'5"89 - 91 cm35 - 36


Motor Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
Pedals VP-536 nylon platform
Battery Bosch PowerTube 750Wh, smart system
Charger Bosch standard 4A, 110V, smart system
Controller/Display Bosch System Controller BRC3100, smart system
Fork RockShox Domain RC, DebonAir, Motion Control damper, lockout, 1.8'' oversized tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm Maxle Stealth, 160mm travel
Stem Bontrager Rhythm Comp, 31.8mm, 0 degree, 50mm length
Chain Shimano SLX M7100, 12 speed
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
Tires Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 29x2.50''
Brakes Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper // Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper
Rotors Shimano RT86, 6-bolt, 203mm
Saddle Bontrager Verse P3, chromoly rails
Wheels Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' / Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29''
Headset Knock Block Integrated, cartridge bearing, 1-1/8'' top, 1.8'' bottom
Seatpost Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length
Shifters Shimano SLX M7100, 12 speed
Chainrings E*thirteen E*spec, 34T alloy, 55mm chainline
Handlebars Bontrager Comp, alloy, 31.8mm, 15mm rise, 780mm width
Rear Shock RockShox Deluxe Select+ RT, 230mm x 57.5mm
Tape/Grips Bontrager XR Trail Comp, nylon lock-on
Rear Derailleur Shimano XT M8100, long cage
Cassette/Freewheel Shimano SLX M7100, 10-51T, 12 speed

* Subject to change without notice.


MY23 Rail 9.8/9.9

Part Numbers

Option UPC MPN Store SKU
Power Surge / Small / 29-inch 768682718421 5300893 RAI286028904
Power Surge / Medium / 29-inch 768682718360 5300894 RAI281938484
Power Surge / Large / 29-inch 768682718520 5300895 RAI283356804
Power Surge / X-Large / 29-inch 768682718643 5300896 RAI299821164