Bicycle Archive · Specification report

2027 Trek Fuel EX 8

Velopedia Archive ID 900000734

Overview

Model year	2027
Brand	Trek
Model	Fuel EX 8
Bicycle type	Mountain
Archive ID	900000734
Original MSRP	$3,999.99
Colors	Wild Mushroom/Trek Black; Lithium Grey/Trek Black Splatter
Sizes	S; M; L; XL
Weight	M - 16.58 kg / 36.56 lbs (with TLR sealant, no tubes)

Frameset

Frame construction	Alpha NEXT Platinum aluminum, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm
Frame material	Aluminum
Fork	Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt X axle, 150mm travel
Rear shock	S, M, L, XL: Fox Performance Float X, 2-position damper, 205mm x 60mm / S, M, L, XL: Fox Float X, 205mm x 60mm

Drivetrain

Component group	SRAM Eagle 70, 12 speed
Shifters	SRAM Eagle 70, 12 speed
Rear derailleur	SRAM Eagle 70, T-Type
Crankset	SRAM Eagle 70, DUB, 30T, T-Type, 55mm chainline, 165mm length
Bottom bracket	SRAM DUB MTB Wide, 73mm, BSA threaded
BB shell width	73 mm
Cassette	SRAM Eagle XS-1270, T-Type,10-52, 12 speed
Chain	SRAM Eagle 70, T-Type, 12 speed

Brakes

Brakes	SRAM DB 8 4-piston hydraulic disc

Cockpit & contact points

Headset	S, M, L, XL: FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom, 1.5 crown / S, M, L, XL: 1-1/8'' threadless, sealed cartridge bearings
Handlebar	Race Face Aeffect, alloy, 35mm, 40mm rise, 800mm width
Stem	Bontrager Elite, 35mm, 0 degree, 45mm length
Saddle	Verse Short Comp, steel rails, 145mm width
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 / S, 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'' / S, 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'' / S, M, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50''

Geometry · 15.5" (S)

Seat tube	370 mm
Effective top tube	548 mm
Head tube	95 mm
Head-tube angle	64.6°
Seat-tube angle	78.7°
Actual seat-tube angle	72.7°
Chainstay / rear center	437 mm
Wheelbase	1187 mm
Bottom-bracket drop	34 mm
Bottom-bracket height	340 mm
Reach	431 mm
Stack	610 mm
Standover height	748 mm
Fork offset / rake	44 mm
Front center	754 mm
Trail	129 mm
Wheel size	29"/27.5"

Geometry · 17.5" (M)

Seat tube	400 mm
Effective top tube	583 mm
Head tube	110 mm
Head-tube angle	64.5°
Seat-tube angle	78.3°
Actual seat-tube angle	72.6°
Chainstay / rear center	437 mm
Wheelbase	1225 mm
Bottom-bracket drop	35 mm
Bottom-bracket height	339 mm
Reach	460 mm
Stack	624 mm
Standover height	744 mm
Fork offset / rake	44 mm
Front center	791 mm
Trail	129 mm
Wheel size	29"

Geometry · 19.5" (L)

Seat tube	420 mm
Effective top tube	617 mm
Head tube	125 mm
Head-tube angle	64.5°
Seat-tube angle	77.4°
Actual seat-tube angle	72.6°
Chainstay / rear center	442 mm
Wheelbase	1262 mm
Bottom-bracket drop	35 mm
Bottom-bracket height	339 mm
Reach	485 mm
Stack	638 mm
Standover height	747 mm
Fork offset / rake	44 mm
Front center	822 mm
Trail	129 mm
Wheel size	29"

Geometry · 21.5" (XL)

Seat tube	455 mm
Effective top tube	651 mm
Head tube	140 mm
Head-tube angle	64.5°
Seat-tube angle	76.9°
Actual seat-tube angle	72.6°
Chainstay / rear center	447 mm
Wheelbase	1298 mm
Bottom-bracket drop	35 mm
Bottom-bracket height	339 mm
Reach	510 mm
Stack	651 mm
Standover height	758 mm
Fork offset / rake	44 mm
Front center	854 mm
Trail	129 mm
Wheel size	29"

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