Bicycle Archive · Specification report

2027 Trek Rail+ 8 Gen 5

Velopedia Archive ID 900000810

Overview

Model year	2027
Brand	Trek
Model	Rail+ 8 Gen 5
Bicycle type	Electric-assist
Archive ID	900000810
Original MSRP	$5,999.99
Colors	Desert Sage/Brushed Chrome; Lithium/Gloss Black Splatter
Sizes	S; M; L; XL
Weight	M - 24.68 kg / 54.42 lbs (with TLR sealant, no tubes)

Frameset

Frame construction	Alpha Platinum Aluminum, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9mm seat tube, ABP, UDH, Boost148, 12 mm thru axle, 160 mm travel
Frame material	Aluminum
Fork	RockShox Lyrik, Delta RC, DebonAir+, tapered steerer, 44mm offset, Boost 110, 15mm Maxle Stealth, 160mm travel
Rear shock	RockShox Super Deluxe, Linear XL, 205mm x 65mm

Drivetrain

Component group	SRAM Eagle 70, 12-speed
Shifters	SRAM Eagle 70, 12 speed
Rear derailleur	SRAM Eagle 70, T-Type
Crankset	FSA alloy, 160mm length
Cassette	SRAM Eagle XS-1270, T-Type,10-52, 12 speed
Chain	SRAM Eagle 70, T-Type, 12 speed
Pedals	Nylon platform

Brakes

Brakes	Shimano MT620 hydraulic disc

Cockpit & contact points

Headset	1-1/8'' threadless, sealed cartridge bearings
Handlebar	Race Face Aeffect, alloy
Stem	Bontrager Elite, 35mm, 0 degree, 45mm length
Saddle	Bontrager Verse P3, steel rails
Seatpost	S: Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length / M: Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length / L, XL: Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length

Wheels & tires

Hubs	(F) Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle / (R) Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano freehub, Boost148, 12mm thru axle
Wheels	Bontrager Line TLR 30
Rims	S: Bontrager Line TLR 30, 27.5'' Tubeless Ready, 28-hole, Presta valve / M, L, XL: Bontrager Line TLR 30, 29'' Tubeless Ready, 28-hole, Presta valve
Front tire	S: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50'' / M, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50''
Rear tire	S: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50'' / M, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50''

Geometry · 15.5" (S) · High

Seat tube	380 mm
Effective top tube	562 mm
Head tube	100 mm
Head-tube angle	65°
Seat-tube angle	77.9°
Actual seat-tube angle	75.3°
Chainstay / rear center	446 mm
Wheelbase	1201 mm
Bottom-bracket drop	12 mm
Bottom-bracket height	345 mm
Reach	435 mm
Stack	594 mm
Standover height	767 mm
Fork offset / rake	43 mm
Front center	754 mm
Trail	119 mm
Wheel size	27.5"

Geometry · 15.5" (S) · Low

Seat tube	380 mm
Effective top tube	563 mm
Head tube	100 mm
Head-tube angle	64.5°
Seat-tube angle	77.4°
Actual seat-tube angle	74.8°
Chainstay / rear center	448 mm
Wheelbase	1202 mm
Bottom-bracket drop	18 mm
Bottom-bracket height	339 mm
Reach	430 mm
Stack	598 mm
Standover height	762 mm
Fork offset / rake	43 mm
Front center	754 mm
Trail	122 mm
Wheel size	27.5"

Geometry · 17.5" (M) · High

Seat tube	410 mm
Effective top tube	591 mm
Head tube	100 mm
Head-tube angle	65°
Seat-tube angle	77.7°
Actual seat-tube angle	75.3°
Chainstay / rear center	446 mm
Wheelbase	1229 mm
Bottom-bracket drop	18 mm
Bottom-bracket height	345 mm
Reach	455 mm
Stack	627 mm
Standover height	784 mm
Fork offset / rake	43 mm
Front center	783 mm
Trail	127 mm
Wheel size	29"/27.5"

Geometry · 17.5" (M) · Low

Seat tube	410 mm
Effective top tube	592 mm
Head tube	100 mm
Head-tube angle	64.5°
Seat-tube angle	77.2°
Actual seat-tube angle	74.8°
Chainstay / rear center	448 mm
Wheelbase	1230 mm
Bottom-bracket drop	24 mm
Bottom-bracket height	339 mm
Reach	450 mm
Stack	631 mm
Standover height	778 mm
Fork offset / rake	43 mm
Front center	783 mm
Trail	131 mm
Wheel size	29"/27.5"

Geometry · 19.5" (L) · High

Seat tube	435 mm
Effective top tube	638 mm
Head tube	120 mm
Head-tube angle	65°
Seat-tube angle	77.5°
Actual seat-tube angle	75.2°
Chainstay / rear center	446 mm
Wheelbase	1277 mm
Bottom-bracket drop	17 mm
Bottom-bracket height	345 mm
Reach	495 mm
Stack	645 mm
Standover height	785 mm
Fork offset / rake	43 mm
Front center	831 mm
Trail	127 mm
Wheel size	29"/27.5"

Geometry · 19.5" (L) · Low

Seat tube	435 mm
Effective top tube	639 mm
Head tube	120 mm
Head-tube angle	64.5°
Seat-tube angle	77°
Actual seat-tube angle	74.8°
Chainstay / rear center	448 mm
Wheelbase	1278 mm
Bottom-bracket drop	24 mm
Bottom-bracket height	339 mm
Reach	490 mm
Stack	649 mm
Standover height	769 mm
Fork offset / rake	43 mm
Front center	831 mm
Trail	131 mm
Wheel size	29"/27.5"

Geometry · 21.5" (XL) · High

Seat tube	470 mm
Effective top tube	669 mm
Head tube	145 mm
Head-tube angle	64.9°
Seat-tube angle	77.4°
Actual seat-tube angle	75.2°
Chainstay / rear center	446 mm
Wheelbase	1313 mm
Bottom-bracket drop	17 mm
Bottom-bracket height	345 mm
Reach	520 mm
Stack	668 mm
Standover height	804 mm
Fork offset / rake	43 mm
Front center	867 mm
Trail	127 mm
Wheel size	29"/27.5"

Geometry · 21.5" (XL) · Low

Seat tube	470 mm
Effective top tube	670 mm
Head tube	145 mm
Head-tube angle	64.5°
Seat-tube angle	76.9°
Actual seat-tube angle	74.8°
Chainstay / rear center	448 mm
Wheelbase	1314 mm
Bottom-bracket drop	24 mm
Bottom-bracket height	339 mm
Reach	515 mm
Stack	672 mm
Standover height	779 mm
Fork offset / rake	43 mm
Front center	867 mm
Trail	131 mm
Wheel size	29"/27.5"

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on August 23, 2026.