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2025 Trek Top Fuel 9.9 XTR Gen 4 Bike

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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.
$9,549.99
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 9.9 XTR 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, alloy 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 Ultimate, 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 XR Trail Elite, nylon lock-on
Brakes
Shimano XTR M9100, 2-piston, Shimano RT86 180mm 6-bolt rotors
Brake Levers
Shimano XTR M9100
Drivetrain
1x
Shifters
Shimano XTR M9100, 12-speed
Front Derailleur
None
Rear Derailleur
Shimano XTR M9100, 12-speed, SHADOW RD+, long cage
ISCG Tabs
ISCG05 front two bolts
Chainguide
None
Cranks
e*thirteen TRS Race Carbon, 170mm length
Chainrings
e*thirteen TRS Race, 30 tooth
Bottom Bracket
e*thirteen BB20-P, 73mm English/BSA threaded
Pedals
None
Chain
Shimano XTR M9100, 12-speed
Cassette
Shimano XTR M9100, 12-speed, 10-51 tooth
Rims
Bontrager Line Pro 30, OCLV Mountain Carbon, tubeless ready
Hubs
Bontrager Line Pro wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with Rapid Drive 108 freehub and MICRO SPLINE driver
Spokes
Bontrager Line Pro 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, Axinite Flip
Warranty
Lifetime frame and rims; 2 years Trek/Bontrager parts, suspension linkage components, and paint/decals
Weight
27 lb 13.5 oz (12630 g)
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
• Weight listed for size MD
• Frame weight, size MD: 5.5 lb (2500 g)
• Includes Bontrager BITS integrated steerer-tube multi-tool
• Includes Bontrager TLR tubeless rim strips, sealant, and valves
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.
$9,549.99
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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