Full-power eMTBEnduro

TrekRail+ 8 Gen 5

£4,500RRP UK, VAT incl.

Motor: Bosch Performance Line CX85–120 Nm (Trek figure)
Battery: 800 WhRemovable (RIB 2.0)
Travel F / R: 160 / 160 mm
Wheels: Mullet 29" / 27.5" (S: 27.5")
Frame: Alloy

Overview

The Trek Rail+ 8 Gen 5 (£4,500) is a mid-range build of the Rail+: alloy frame, Bosch Performance Line CX motor with 800 Wh, RockShox ZEB Select fork, RockShox Super Deluxe Select RT shock, Shimano XT M8100 and SRAM DB 8 4-piston hydraulic disc brakes.

The Rail+ is Trek's full-power enduro e-MTB: 160 mm of travel front and rear, mixed wheels (27.5-inch on size S) and the Bosch Performance Line CX motor with a removable 800 Wh battery (RIB 2.0). The Rail+ 5 and 8 use an Alpha Platinum aluminium frame; the 9.7 and 9.8 have an OCLV Mountain Carbon main frame. Mino Link and an angle-adjust headset let you tune the geometry.

160 mm travel front and rear
Bosch Performance Line CX
Removable 800 Wh battery
Alloy or carbon frame, Mino Link

Full specifications

Frame & suspension

Shock: RockShox Super Deluxe Select RT, 205mm x 65mm
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

E-system

Battery: Bosch PowerTube 800 Wh, smart system
Charger: Bosch standard 4A, 230V, smart system
Motor: Bosch Performance Line CX (Europe and APAC: 25 km/h, US and ROW: 20 mph / 32 km/h)
Controller: Bosch System Controller BRC3100, smart system
Controller: Bosch Kiox 400C, mini remote

Drivetrain

Chain: Shimano SLX M7100, 12-speed
Chainring: E*thirteen, 34T, steel
Rear derailleur: Shimano XT M8100, long cage
Cassette: Shimano Deore M6100, 10-51, 12-speed
Crankset: E*thirteen E*spec Plus, 160 mm length
Shifter: Shimano SLX M7100, 12-speed

Brakes

Brake rotor: SRAM CentreLine, 6-bolt, round-edge, 200 mm
Brake: SRAM DB 8 4-piston hydraulic disc

Wheels & tyres

Skewer rear: Bontrager Switch thru axle, removable lever
Rear wheel: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 27.5"
Tyre: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50"
Front wheel: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5"

Cockpit

Headset: 1-1/8'' threadless, sealed cartridge bearings
Stem: Bontrager Elite, 35 mm, 0-degree, 45 mm length
Handlebar: Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
Saddle: Bontrager Verse P3, steel rails
Grips: Bontrager XR Trail Comp, nylon lock-on
Seatpost: Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9 mm, 410 mm length

Other

Computer part: Bosch Mini Remote BRC3300, smart system, 22.2 mm
Mudguard: Trek custom mudguard

Manufacturer specification — source. Specs and prices can change; check with the brand or your dealer.

Rail+ geometry

Size	S	M	L	XL
Wheel size	27.5"	29"/27.5"	29"/27.5"	29"/27.5"
Seat tube length	380 mm	410 mm	435 mm	470 mm
Seat tube angle	75.3° / 74.8°	75.3° / 74.8°	75.2° / 74.8°	75.2° / 74.8°
Effective seat tube angle	77.9° / 77.4°	77.7° / 77.2°	77.5° / 77.0°	77.4° / 76.9°
Head tube length	100 mm	100 mm	120 mm	145 mm
Head angle	65.0° / 64.5°	65.0° / 64.5°	65.0° / 64.5°	64.9° / 64.5°
Effective top tube	562 mm / 563 mm	591 mm / 592 mm	638 mm / 639 mm	669 mm / 670 mm
BB height	345 mm / 339 mm	345 mm / 339 mm	345 mm / 339 mm	345 mm / 339 mm
BB drop	12 mm / 18 mm	18 mm / 24 mm	17 mm / 24 mm	17 mm / 24 mm
Chainstay length	446 mm / 448 mm	446 mm / 448 mm	446 mm / 448 mm	446 mm / 448 mm
Fork offset	43 mm	43 mm	43 mm	43 mm
Trail	119 mm / 122 mm	127 mm / 131 mm	127 mm / 131 mm	127 mm / 131 mm
Wheelbase	1201 mm / 1202 mm	1229 mm / 1230 mm	1277 mm / 1278 mm	1313 mm / 1314 mm
Standover	767 mm / 762 mm	784 mm / 778 mm	785 mm / 769 mm	804 mm / 779 mm
Reach	435 mm / 430 mm	455 mm / 450 mm	495 mm / 490 mm	520 mm / 515 mm
Stack	594 mm / 598 mm	627 mm / 631 mm	645 mm / 649 mm	668 mm / 672 mm
Front centre	754 mm	783 mm	831 mm	867 mm

Where two values are given: High / Low Mino Link position. Source: Trek.

Rail+: builds compared

Rail+ range →

	Rail+ 5 Gen 5	Rail+ 8 Gen 5	Rail+ 9.7 Gen 5	Rail+ 9.8 Gen 5
Price	£3,850	£4,500	£5,500	£7,000
Frame	Alloy	Alloy	Carbon main frame, alloy stays	Carbon main frame, alloy stays
Fork	RockShox Psylo Gold RC, DebonAir spring	RockShox ZEB Select, DebonAir spring	RockShox Lyrik, Delta RC	Fox Factory 38, Float EVOL air spring
Shock	RockShox Deluxe Select+ RT	RockShox Super Deluxe Select RT	RockShox Super Deluxe	Fox Factory Float X
Derailleur	Shimano Deore M6100	Shimano XT M8100	SRAM Eagle 70	Shimano XT Di2 M8260
Brakes	Shimano 4-piston hydraulic disc	SRAM DB 8 4-piston hydraulic disc	Shimano MT620 hydraulic disc	Shimano XT M8220 4-piston hydraulic disc
Wheels	—	Bontrager Line Comp 30	—	—

Rail+ 8 Gen 5: FAQ

How much does the Trek Rail+ 8 Gen 5 cost?

£4,500 (RRP UK, VAT incl.). The Rail+ range runs from £3,850 (Rail+ 5 Gen 5) to £7,000 (Rail+ 9.8 Gen 5). Prices vary by country and dealer.

What motor and battery does the Trek Rail+ 8 Gen 5 have?

Bosch Performance Line CX (85–120 Nm (Trek figure)). 800 Wh battery — removable (RIB 2.0).

How much suspension travel does the Trek Rail+ 8 Gen 5 have?

160 mm at the fork and 160 mm at the rear, on mullet 29" / 27.5" (S: 27.5") wheels.

What sizes does the Trek Rail+ 8 Gen 5 come in?

S, M, L, XL. Check the geometry table to compare reach and stack between sizes.

What is the difference between the Rail+ 8 Gen 5 and the Rail+ 9.7 Gen 5?

They share the Rail+ frame platform and motor; the differences are in the parts — frame: alloy vs carbon main frame, alloy stays; fork: RockShox ZEB Select vs RockShox Lyrik; derailleur: Shimano XT M8100 vs SRAM Eagle 70; price: £4,500 vs £5,500.