2026 Trek Rail+ 8 Gen 5

$10,999.00

SKU: N/A Category:

Description

The Rail+ 8 is an alloy enduro e-bike that packs in what you want most for big adventures.

It comes equipped with a Bosch Performance CX drive system with full power for crushing laps and big climbs while its massive battery takes you the distance. 160 mm of front and rear travel make Rail+ super capable in the rough and rowdy, and adjustable geometry lets you customise it for how and where you ride.

It’s right for you if…

You want a bike that maximises the fun and is up for gnarly rides that get you off the grid or just hammering in an extra lap or two. You need the capability of an enduro bike for pointing it down the rough and rowdy, and love the feeling of full assist taking the sweat out of the climb back to the top for more

The tech you get

An Alpha Platinum Aluminium frame with a Bosch Performance CX system (85 Nm, 250 W) and 800 Wh Removable Integrated Battery 2.0. A 160 mm RockShox ZEB Select fork with DebonAir spring, Motion Control damper and lockout, and a RockShox Deluxe Select+ RT shock. All topped off with a Shimano XT and SLX blended 12-speed drivetrain, dropper post, Bontrager Line Comp 30 Tubeless Ready wheels and 4-piston Shimano hydraulic disc brakes.

The final word

The Rail + 8 is an enduro e-MTB dialled for big adventures. It packs in capable, adjustable geometry, a massive battery and a powerful motor to get you wherever you want to go. An upgraded drivetrain balances price and performance for a ride that’s ready for anything.

Why you’ll love it:

  • The Rail+ delivers adventure with plenty of travel and power for getting after epic rides that take you peak to peak or chasing endless enduro laps
  • The powerful Bosch Performance CX system goes full gas up steep climbs and keeps you cool for the descents
  • You can tweak your geometry and suspension leverage rate for how you ride, and add in adjustable angle headset cups (sold separately) for even more adjustability
  • The massive 800 Wh RIB 2.0 battery supports you for big miles and can be easily removed for travel or storage
  • It’s compatible with the Bosch PowerMore booster battery for going even further on epic adventures

How tall are you?

To measure your height, stand up straight, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inside leg?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inside leg measurement. Your inside leg is very important to your final bike size so please measure carefully.

Sizing

size-table
Size Rider Height Inseam
S

155 – 165 cm

5’1″ – 5’5″

74 – 78 cm

29″ – 31″

M

165 – 177 cm

5’5″ – 5’10”

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″

Geometry

Labelled bike diagram showing geometry points A to N.
Geometry diagram labelling frame measurements A to N. Each label corresponds to a row in the geometry table below.

All measurements provided in cm unless otherwise stated.

Sizing table
Frame size number Frame size letter Geometry position Wheel size A — Seat tube B — Seat tube angle Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
15.5″ S High 27.5″ 38.0 75.3° 77.9° 10.0 65.0° 56.2 34.4 1.2 44.6 4.3 11.9 120.1 76.7 43.5 59.8
15.5″ S Low 27.5″ 38.0 74.8° 77.4° 10.0 64.5° 56.3 33.8 1.8 44.8 4.3 12.2 127.8 76.2 43.0 59.4
17.5″ M High 29″/27.5″ 41.0 75.3° 77.7° 10.0 65.0° 59.1 34.5 1.8 44.6 4.3 12.7 122.9 78.4 45.5 63.1
17.5″ M Low 29″/27.5″ 41.0 74.8° 77.2° 10.0 64.5° 59.2 33.8 2.4 44.8 4.3 13.1 123.0 77.8 45.0 62.7
19.5″ L High 29″/27.5″ 43.5 75.2° 77.5° 12.0 65.0° 63.9 34.5 1.8 44.6 4.3 12.7 127.7 78.5 49.5 64.9
19.5″ L Low 29″/27.5″ 43.5 74.8° 77.0° 12.0 64.5° 63.9 33.8 2.4 44.8 4.3 13.1 127.8 77.9 49.0 64.5
21.5″ XL High 29″/27.5″ 47.0 75.2° 77.4° 14.5 64.9° 67.0 34.5 1.7 44.6 4.3 12.7 131.3 80.4 52.0 67.2
21.5″ XL Low 29″/27.5″ 47.0 74.8° 76.9° 14.5 64.5° 67.0 33.8 2.4 44.8 4.3 13.1 131.4 79.8 51.5 66.7

*Please note – spec applies to all sizes unless listed separately

Frame
Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9 mm seat tube, ABP, UDH, Boost148, 12 mm thru axle, 160 mm travel
Fork
RockShox ZEB Select, DebonAir spring, Charger RC damper, tapered steerer, 44 mm offset, Boost110, Maxle Stealth, 160 mm travel
Shock
RockShox Super Deluxe Select RT, 205mm x 65mm

*Wheel front
Wheel rear
Bontrager Line Comp 30, High Strength 6000 Series Aluminium rim, Tubeless-Ready, Rapid Drive 108, 6-bolt, Shimano Micro Spline freehub, Boost148, 12 mm thru axle, 27.5″
Skewer rear
*Tyre
Size: S, M, L, XL

Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5×2.50″
Size: M, L, XL

Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29×2.50″
Tyre part
Bontrager TLR sealant, 180 ml/6 oz
Max tyre size
Frame: 27.5×2.60″, Fork: See manufacturer

Battery
Bosch PowerTube 800 Wh, smart system
Charger
Bosch standard 4A, 230V, smart system
Controller
Bosch Kiox 400C, mini remote
Motor
Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)
E-bike Classification
Class 1

Shifter
Shimano SLX M7100, 12-speed
Rear derailleur
Shimano XT M8100, long cage
Crank arm
E*thirteen E*spec Plus, 160 mm length
Cassette
Shimano Deore M6100, 10-51, 12-speed
Chain
Shimano SLX M7100, 12-speed
Pedal
VP-536 nylon platform
Max. chainring size
1x: 36T

Saddle
Bontrager Verse P3, steel rails
*Seatpost
Handlebar
Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
Grips
Bontrager XR Trail Comp, nylon lock-on
Stem
Bontrager Elite, 35 mm, 0-degree, 45 mm length
Head set
Brake
SRAM DB 8 4-piston hydraulic disc
Brake rotor
SRAM CentreLine, 6-bolt, round-edge, 200 mm
Rotor size
Max brake rotor sizes – Frame: 220 mm, Fork: see fork manufacturer

Mudguard
Trek custom mudguard

Weight
M – 25.08 kg/55.3 lb (with TLR sealant, no tubes)
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

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.

Additional information

Type

RAIL+ 8 GEN5

Color

Black

Size

Large, Medium, Small, X Large

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