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2025 Trek Top Fuel 9.8 GX AXS Gen 4 Bike

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mino
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Trek
Where To Buy
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
$5,999.99
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.

Specifications

Product
Trek Top Fuel 9.8 GX AXS Gen 4 Bike
Model Year
2025
Riding Type
Cross Country
Trail
Rider
Unisex
Sizes and Geometry
SM (High, Low)
MD (High, Low)
ML (High, Low)
LG (High, Low)
XL (High, Low)
Wheel Size
27.5" (650b)
29"
Frame Material
Carbon Fiber
Frame Material Details
OCLV Mountain Carbon front and rear triangles, OCLV Next rocker link, molded chainstay protection, bolt-on dual-density down tube guard
Rear Travel
120mm
Rear Shock
RockShox Deluxe Ultimate RCT, 185mm length x 50mm stroke
Fork
RockShox Pike Select+, DebonAir spring, Charger 3.1 RC2 damper, 35mm stanchions, 44mm offset, Maxle Stealth thru-axle
Fork Travel
130mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
 
Handlebar
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 820mm width, 27.5mm rise
Stem
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0° rise
Virtual length: 35mm (SM), 45mm (MD-XL)
Grips
Bontrager
Brakes
SRAM Level Bronze, 4-piston, SRAM CenterLine 180mm 6-bolt rotors
Brake Levers
SRAM Level Bronze Stealth, tool-free reach adjust
Drivetrain
1x
Shifters
SRAM Eagle Pod Controller, 12-speed, AXS electronic wireless
Front Derailleur
None
Rear Derailleur
SRAM GX Eagle Transmission, 12-speed, AXS electronic wireless
ISCG Tabs
ISCG05 front two bolts
Chainguide
None
Cranks
SRAM GX Eagle Transmission Alloy DUB, 170mm length
Chainrings
SRAM GX Eagle Transmission, 30 tooth
Bottom Bracket
SRAM DUB MTB Wide, 73mm English/BSA threaded
Pedals
None
Chain
SRAM GX Eagle Transmission Flattop, 12-speed
Cassette
SRAM GX Eagle Transmission XS-1275, 12-speed, 10-52 tooth
Rims
Bontrager Line Comp 30, high strength 6000 Series alloy, tubeless ready
Hubs
Bontrager Line Comp wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with Rapid Drive 108 freehub and XD driver
Spokes
Bontrager Line Comp wheelset
Tires
SM: Bontrager Gunnison RSL XT, triple compound, aramid bead, 120 TPI, tubeless ready, 27.5" x 2.4"
MD-XL Front: Bontrager Gunnison RSL XT, triple compound, aramid bead, 120 TPI, tubeless ready, 29" x 2.4"
MD-XL Rear: Bontrager Montrose RSL XT, triple compound, aramid bead, 120 TPI, tubeless ready, 29" x 2.4"
Saddle
Bontrager Verse Short Comp, steel rails, 145mm width
Seatpost
Bontrager Line dropper, MaxFlow
Drop: 100mm (SM), 170mm (MD-XL)
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
Matte Dark Web, Lunar Silver
Warranty
Lifetime frame; 2 years Trek/Bontrager parts, suspension linkage components, and paint/decals
Weight
 
Miscellaneous
• ABP (Active Braking Pivot) rear suspension design
• SM has 27.5" wheels; MD-XL have 29" wheels
• Geometry (High/Low) and rear suspension leverage rate (More/Less progressive) adjustable via Mino Link 4 flip chip in lower shock mount
• All sizes compatible with mixed ("Mullet") setups (29" front, 27.5" rear) by using 140mm travel fork and Mino Link 4 flip chip in High position
• Internal frame storage compartment in down tube; includes Bontrager BITS storage bag
• Guided internal cable routing
• SRAM UDH (Universal Derailleur Hanger)
• Convertible to 130mm rear travel with longer-stroke shocks
• Frame weight, size MD: 5.5 lb (2500 g)
• Includes Bontrager TLR tubeless rim strips, sealant, and valves
• Includes SRAM AXS PowerPack battery charger
Price
$6,999.99
More Info

Trek website

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Where To Buy
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
Free standard shipping on all bikes (continental U.S. only).
Flat rate shipping to Hawaii and Alaska.
$5,999.99
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
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