Trek Rail 5

You’re looking for an e-MTB that’s just as ready to shred as non-electric trail bikes. You want a powerful Bosch drive system that’ll propel you up climbs so you can hit lap after lap.

A burly alloy frame with 150mm of rear travel that fully encases a 500Wh battery, an e-MTB optimized 160mm RockShox 35 Gold RL fork, a powerful new Bosch Performance Line CX 250W motor that assists up to 20 mph, and a Purion controller. Plus, a 1x12 drivetrain with a wide gear range so you can always find the ideal cadence for the motor, a dropper post, powerful 4-piston brakes for more downhill confidence, and 29er Bontrager wheels with nimble yet grippy 2.6" tires.

Rail 5 is our best-value long-travel e-MTB. It's equally as capable as our regular long-travel trail bikes, it just gets you back to the top in a flash. The powerful Bosch drive systems and durable part spec make for long-lasting fun.

Rail shreds just as hard as its non-electric brethren, plus it powers you right back up the mountain—no shuttle or lift necessary
The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
Made with the same exclusive frame tech as Remedy and Slash, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness, and Active Braking Pivot (ABP)
The dropper post lets you lower your saddle on the fly so it's out of the way on descents
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 remove the battery without tools and lets you mount a water bottle cage

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

Frame	Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
Fork	RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm Maxle Stealth, 160mm travel
Shock	RockShox Deluxe Select+, 230mm x 57.5mm
Max compatible fork travel	170mm (580mm axle-to-crown)

Hub front	Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Hub rear	Bontrager alloy, loose ball bearing, alloy axle, 6-bolt, Shimano Micro Spline freehub, Boost148, 12mm thru axle
Skewer rear	Bontrager Switch thru axle, removable lever
Rim	Alex MD35, tubeless compatible, 32-hole, 35mm width, presta valve
Tire	Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60''
Max tire size	Frame: 29x2.60" Fork: See manufacturer

Shifter	Shimano Deore M6100, 12 speed
Rear derailleur	Shimano Deore M6100, long cage
Crank arm	Ethirteen Espec Plus, 34T, 165mm length
Chainring	E*thirteen, 34T, steel
Cassette	Shimano Deore M6100, 10-51, 12 speed
Chain	Shimano Deore M6100, 12 speed
Pedal	VP-536 nylon platform
Max chainring size	34T

Saddle	Bontrager Arvada, steel rails, 138mm width
*Seatpost	Size: S TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
*Seatpost	Size: M, L, XL TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
Handlebar	Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips	Bontrager XR Trail Comp, nylon lock-on
Stem	Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length
Headset	Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Brake	Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper
Brake rotor	Shimano RT76, 6-bolt, 203mm

Battery	Bosch PowerTube 500Wh
Charger	Bosch compact 2A, 100-240V, smart system
Motor	Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist
Computer	Bosch Purion

Weight	M - 23.88 kg / 52.65 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

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, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.

Size	Rider Height	Inseam
S	153 - 167 cm 5'0" - 5'6"	72 - 79 cm 28" - 31"
M	161 - 175 cm 5'3" - 5'9"	76 - 82 cm 30" - 32"
L	174 - 188 cm 5'9" - 6'2"	82 - 88 cm 32" - 35"
XL	186 - 196 cm 6'1" - 6'5"	87 - 92 cm 34" - 36"

Size

Rider Height

Inseam

153 - 167 cm

5'0" - 5'6"

72 - 79 cm

28" - 31"

161 - 175 cm

5'3" - 5'9"

76 - 82 cm

30" - 32"

174 - 188 cm

5'9" - 6'2"

82 - 88 cm

32" - 35"

186 - 196 cm

6'1" - 6'5"

87 - 92 cm

34" - 36"

All measurements provided in cm unless otherwise noted.

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	Low	29"	41.0	67.6°	75.0°	10.5	64.5°	58.8	33.9	3.5	44.8	4.3	13.1	119.6	74.3	42.0	62.6
15.5	S	High	29"	41.0	68.0°	75.4°	10.5	64.9°	58.7	34.4	2.9	44.7	4.3	12.7	119.5	74.8	42.5	62.3
17.5	M	Low	29"	42.0	67.6°	75.0°	10.5	64.5°	61.3	33.9	3.5	44.8	4.3	13.1	122.1	77.3	44.5	62.6
17.5	M	High	29"	42.0	68.0°	75.4°	10.5	64.9°	61.1	34.4	2.9	44.7	4.3	12.7	122.0	77.8	45.0	62.2
19.5	L	Low	29"	45.0	67.6°	75.0°	11.0	64.5°	63.4	33.9	3.5	44.8	4.3	13.1	124.3	76.2	46.5	63.0
19.5	L	High	29"	45.0	68.0°	75.4°	11.0	64.9°	63.3	34.4	2.9	44.7	4.3	12.7	124.3	76.7	47.0	62.7
21.5	XL	Low	29"	50.0	67.6°	75.0°	12.0	64.5°	66.6	33.9	3.5	44.8	4.3	13.1	127.8	77.5	49.5	63.9
21.5	XL	High	29"	50.0	68.0°	75.4°	12.0	64.9°	66.5	34.4	2.9	44.7	4.3	12.7	127.7	78.0	49.9	63.6