2025 Trek Fuel EX 8 XT Gen 6 Bike

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Trek

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Specifications

Product

Trek Fuel EX 8 XT Gen 6 Bike

Model Year

2025

Intended Use

Trail

Enduro / All-Mountain

Rider

Unisex

Sizes and Geometry

XS 27.5" (High, Low)

SM 27.5" (High, Low)

SM 29" (High, Low)

MD (High, Low)

ML (High, Low)

LG (High, Low)

XL (High, Low)

XXL (High, Low)

View Full Geometry

Size	XS 27.5" (High, Low)	SM 27.5" (High, Low)	SM 29" (High, Low)	MD (High, Low)	ML (High, Low)	LG (High, Low)	XL (High, Low)	XXL (High, Low)
Top Tube Length	516mm, 516mm	550mm, 551mm	553mm, 554mm	583mm, 584mm	606mm, 607mm	626mm, 627mm	660mm, 662mm	695mm, 697mm
Head Tube Angle	64.9°, 64.5°	64.8°, 64.5°	65.1°, 64.5°	65.1°, 64.5°	65.1°, 64.5°	65.1°, 64.5°	65.0°, 64.5°	65.0°, 64.5°
Head Tube Length	95mm	95mm	95mm	100mm	100mm	105mm	120mm	135mm
Seat Tube Angle	78.9°, 78.6°	78.5°, 78.2°	79.2°, 78.6°	78.8°, 78.2°	78.0°, 77.5°	77.7°, 77.2°	77.1°, 76.6°	76.5°, 76.0°
Seat Tube Length	360mm	380mm	380mm	410mm	420mm	435mm	470mm	500mm
Bottom Bracket Height	337mm (21mm drop), 332mm (25mm drop)	337mm (21mm drop), 332mm (25mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (30mm drop), 335mm (38mm drop)	343mm (30mm drop), 335mm (38mm drop)
Chainstay Length	434mm, 435mm	434mm, 435mm	433mm, 435mm	433mm, 435mm	438mm, 440mm	438mm, 440mm	443mm, 445mm	449mm, 450mm
Wheelbase	1144mm, 1145mm	1174mm, 1175mm	1185mm, 1186mm	1212mm, 1213mm	1232mm, 1233mm	1249mm, 1250mm	1286mm, 1287mm	1322mm, 1323mm
Standover	720mm, 717mm	728mm, 723mm	738mm, 732mm	744mm, 737mm	751mm, 745mm	754mm, 748mm	767mm, 760mm	781mm, 774mm
Reach	404mm, 400mm	434mm, 430mm	431mm, 425mm	456mm, 450mm	476mm, 470mm	491mm, 485mm	521mm, 515mm	551mm, 545mm
Stack	572mm, 574mm	572mm, 574mm	608mm, 612mm	612mm, 617mm	612mm, 617mm	617mm, 621mm	630mm, 635mm	644mm, 648mm
Additional Info	• XS has 27.5" wheels; SM is available with 27.5" or 29" wheels; MD-XXL have 29" wheels • Geometry adjustable via Mino Link flip chip in rocker link pivot and optional angle-adjust headset cups • Optional angle-adjust headset cups allow +1° and -1° head tube angle adjustments • All specifications listed are with 150mm travel fork with 533mm (27.5") or 561mm (29") axle-to-crown length and 44mm offset

Sizes Additional Info

• XS has 27.5" wheels; SM is available with 27.5" or 29" wheels; MD-XXL have 29" wheels

• Geometry adjustable via Mino Link flip chip in rocker link pivot and optional angle-adjust headset cups

• Optional angle-adjust headset cups allow +1° and -1° head tube angle adjustments

• All specifications listed are with 150mm travel fork with 533mm (27.5") or 561mm (29") axle-to-crown length and 44mm offset

View Full Geometry

Size	XS 27.5" (High, Low)	SM 27.5" (High, Low)	SM 29" (High, Low)	MD (High, Low)	ML (High, Low)	LG (High, Low)	XL (High, Low)	XXL (High, Low)
Top Tube Length	516mm, 516mm	550mm, 551mm	553mm, 554mm	583mm, 584mm	606mm, 607mm	626mm, 627mm	660mm, 662mm	695mm, 697mm
Head Tube Angle	64.9°, 64.5°	64.8°, 64.5°	65.1°, 64.5°	65.1°, 64.5°	65.1°, 64.5°	65.1°, 64.5°	65.0°, 64.5°	65.0°, 64.5°
Head Tube Length	95mm	95mm	95mm	100mm	100mm	105mm	120mm	135mm
Seat Tube Angle	78.9°, 78.6°	78.5°, 78.2°	79.2°, 78.6°	78.8°, 78.2°	78.0°, 77.5°	77.7°, 77.2°	77.1°, 76.6°	76.5°, 76.0°
Seat Tube Length	360mm	380mm	380mm	410mm	420mm	435mm	470mm	500mm
Bottom Bracket Height	337mm (21mm drop), 332mm (25mm drop)	337mm (21mm drop), 332mm (25mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (31mm drop), 335mm (38mm drop)	343mm (30mm drop), 335mm (38mm drop)	343mm (30mm drop), 335mm (38mm drop)
Chainstay Length	434mm, 435mm	434mm, 435mm	433mm, 435mm	433mm, 435mm	438mm, 440mm	438mm, 440mm	443mm, 445mm	449mm, 450mm
Wheelbase	1144mm, 1145mm	1174mm, 1175mm	1185mm, 1186mm	1212mm, 1213mm	1232mm, 1233mm	1249mm, 1250mm	1286mm, 1287mm	1322mm, 1323mm
Standover	720mm, 717mm	728mm, 723mm	738mm, 732mm	744mm, 737mm	751mm, 745mm	754mm, 748mm	767mm, 760mm	781mm, 774mm
Reach	404mm, 400mm	434mm, 430mm	431mm, 425mm	456mm, 450mm	476mm, 470mm	491mm, 485mm	521mm, 515mm	551mm, 545mm
Stack	572mm, 574mm	572mm, 574mm	608mm, 612mm	612mm, 617mm	612mm, 617mm	617mm, 621mm	630mm, 635mm	644mm, 648mm
Additional Info	• XS has 27.5" wheels; SM is available with 27.5" or 29" wheels; MD-XXL have 29" wheels • Geometry adjustable via Mino Link flip chip in rocker link pivot and optional angle-adjust headset cups • Optional angle-adjust headset cups allow +1° and -1° head tube angle adjustments • All specifications listed are with 150mm travel fork with 533mm (27.5") or 561mm (29") axle-to-crown length and 44mm offset

Wheel Size

27.5" (650b)

29"

Frame Material

Aluminum

Frame Material Details

Alpha Platinum Aluminum, magnesium rocker link, molded seatstay and chainstay protection, two-piece dual-density bolt-on down tube protection

Rear Travel

140mm

Rear Shock

FOX FLOAT X Performance, 2-position platform lever, 185mm length x 55mm stroke

Fork

FOX FLOAT 36 Rhythm, EVOL, GRIP damper, 44mm offset, Kabolt (XS/SM) or Kabolt X (ML-XXL) thru-axle

Fork Travel

27.5": 140mm
29": 150mm

Head Tube Diameter

Tapered, 1.125" top, 1.5" bottom

Headset

Integrated, cartridge bearings, compatible with optional angle-adjust headset cups

Handlebar

Bontrager Line, alloy, 27.5mm rise, 35mm clamp diameter
Width: 750mm (XS/SM), 780mm (MD-XXL)

Stem

Bontrager Elite, 0° rise, 35mm bar clamp
Length: 35mm (XS/SM), 45mm (MD-XXL)

Grips

Bontrager XR Trail Elite, nylon lock-on

Brakes

Shimano Deore M6120, 4-piston
Rotors: Shimano RT66, 6-bolt, 203mm front, 180mm rear

Brake Levers

Shimano Deore M6100

Drivetrain

Shifters

Shimano Deore XT M8100, 12-speed

Front Derailleur

None

Rear Derailleur

Shimano Deore XT M8100, 12-speed, long cage

ISCG Tabs

ISCG05

Chainguide

None

Cranks

Shimano Deore M6120 Alloy, 170mm length

Chainrings

Shimano Deore M6120, 30 tooth

Bottom Bracket

Shimano MT501, 73mm English/BSA threaded

Pedals

None

Chain

Shimano SLX M7100, 12-speed

Cassette

Shimano Deore XT M8100, 12-speed, 10-51 tooth

Rims

Bontrager Line Comp 30, 6000 series aluminum, tubeless ready

Hubs

Bontrager Line Comp wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with Rapid Drive 108 freehub and MICRO SPLINE driver

Spokes

Bontrager Line Comp wheelset

Tires

Bontrager XR5 Team Issue, Inner Strength casing, aramid bead, 60 TPI, tubeless ready, 2.5"

Saddle

Bontrager Verse P3, chromoly rails

Seatpost

Bontrager Line dropper, MaxFlow
Drop: 100mm (XS/SM), 150mm (MD/ML), 170mm (LG-XXL)

Seatpost Diameter

34.9mm

Seatpost Clamp

Single bolt

Rear Dropout / Hub Dimensions

12mm x 148mm (Boost)

Max. Tire Size

2.5"

Bottle Cage Mounts

One inside front triangle

Colors

Nautical Navy, Satin Mercury

Warranty

Lifetime frame; 2 years Trek/Bontrager parts, suspension linkage components, and paint/decals

Weight

35 lb 1.2 oz (15910 g)

Miscellaneous

• ABP (Active Braking Pivot) rear suspension design
• XS/SM have 27.5" wheels; MD-XL have 29" wheels
• Compatible with mixed ("Mullet") wheel setups (29" front, 27.5" rear)
• Geometry adjustable via Mino Link flip chip in rear rocker link pivot
• Geometry adjustable via optional angle-adjust headset cups, for +1° and -1° head tube angle adjustments
• Internal frame storage compartment in down tube; includes Bontrager BITS storage bag
• Guided internal cable routing
• SRAM UDH (Universal Derailleur Hanger)
• Includes Bontrager TLR tubeless rim strips, valve stems, and sealant
• Weight given for size MD

Rear suspension leverage rate adjustable via flip chip at lower shock mount:
• Less progressive setting intended for a plusher feel perfect for rugged trails with square-edge bumps
• More progressive setting intended for hitting big features without bottom-out, or to run a coil shock

Price

$4,699.99

More Info

Trek website

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Where To Buy
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free U.S. shipping on everything. International shipping available. Some exclusions apply.	Browse available Bikes