Velopedia Bicycle Archive
2027 Trek Fuel EX 8
Original specifications: SRAM Eagle 70, 12 speed drivetrain · M - 16.58 kg / 36.56 lbs (with TLR sealant, no tubes) published weight · geometry for 4 published sizes.
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At a glance
- Model year
- 2027
- Category
- Mountain
- Original MSRP
- $3,999.99
- Sizes
- S, M, L, XL
- Colors
- Wild Mushroom/Trek Black, Lithium Grey/Trek Black Splatter
- Weight
- M - 16.58 kg / 36.56 lbs (with TLR sealant, no tubes)
- Geometry
- 4 manufacturer sizes
- In this record
- 23 specifications · 7 archived images · original MSRP · geometry
- Archive ID
- 900000734
Model history 9 other years
Original buildAluminum · SRAM Eagle 70, 12 speed
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
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 17 measurements
| Measurement | 15.5" (S) | 17.5" (M) | 19.5" (L) | 21.5" (XL) |
|---|---|---|---|---|
| Seat tube | 370 mm | 400 mm | 420 mm | 455 mm |
| Effective top tube | 548 mm | 583 mm | 617 mm | 651 mm |
| Head tube | 95 mm | 110 mm | 125 mm | 140 mm |
| Head-tube angle | 64.6° | 64.5° | 64.5° | 64.5° |
| Seat-tube angle | 78.7° | 78.3° | 77.4° | 76.9° |
| Actual seat-tube angle | 72.7° | 72.6° | 72.6° | 72.6° |
| Chainstay / rear center | 437 mm | 437 mm | 442 mm | 447 mm |
| Wheelbase | 1187 mm | 1225 mm | 1262 mm | 1298 mm |
| Bottom-bracket drop | 34 mm | 35 mm | 35 mm | 35 mm |
| Bottom-bracket height | 340 mm | 339 mm | 339 mm | 339 mm |
| Reach | 431 mm | 460 mm | 485 mm | 510 mm |
| Stack | 610 mm | 624 mm | 638 mm | 651 mm |
| Standover height | 748 mm | 744 mm | 747 mm | 758 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 754 mm | 791 mm | 822 mm | 854 mm |
| Trail | 129 mm | 129 mm | 129 mm | 129 mm |
| Wheel size | 29"/27.5" | 29" | 29" | 29" |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

SRAM XS-1270 T-Type 12-Speed Cassette One Color, 10-52t
10-52t
More parts (6)

SRAM Eagle 70 T-Type 12-Speed Mechanical Rear Derailleur One Color, Max 52t
Max 52t

Race Face Aeffect R 35 20mm Rise Handlebar - Bike Build Black, 35mm, 780mm
35mm, 780mm
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 23 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2027 Trek Fuel EX 8 · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Aluminum · Fork: Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt X axle, 150mm travel
Suspension
Evaluate the suspension →Archived: 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
Check drivetrain wear →Archived: 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 · Cassette: SRAM Eagle XS-1270, T-Type,10-52, 12 speed · Chain: SRAM Eagle 70, T-Type, 12 speed
Brakes
Inspect the brakes →Archived: Brakes: SRAM DB 8 4-piston hydraulic disc
Wheels and tires
Check wheels and tires →Archived: 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 · 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
Controls and contact points
Archived: 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
Before and during the test ride
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Gallery7 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





