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2026 Trek Top Fuel RSL Gen 4 Bike

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Trek
Where To Buy
Free shipping on orders over $69 (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.
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.

Specifications

Product
Trek Top Fuel RSL Gen 4 Bike
Model Year
2026
Intended Use
Cross Country
Trail
Rider
Unisex
Sizes and Geometry
MD (High, Low)
ML (High, Low)
LG (High, Low)
XL (High, Low)
View Full Geometry
Sizes Additional Info
• Geometry adjustable via Mino Link 4 flip chip in lower shock mount
• All specifications listed are with 120mm travel fork with 44mm offset
View Full Geometry
Wheel Size
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 SIDLuxe Ultimate Flight Attendant, 3-mode automatic electronic compression damping adjustment, AXS control, 185mm length x 50mm stroke
Fork
RockShox SID Ultimate Flight Attendant, Race Day damper, Stealth DebonAir spring, 3-mode automatic electronic compression damping adjustment, AXS control, 35mm stanchions, 44mm offset, Maxle Stealth thru-axle
Fork Travel
120mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
 
Handlebar
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 750mm width, 0mm rise
Stem
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 13° drop
Virtual length: 80mm (MD/ML), 90mm (LG/XL)
Grips
Trek Line Elite, lock-on
Brakes
SRAM Motive Silver, 4-piston
Rotors: SRAM HS2, 6-bolt, 180mm
Brake Levers
SRAM Motive Silver Stealth, tool-free reach adjust
Drivetrain
1x
Shifters
SRAM Eagle Pod Controller, 12-speed, AXS electronic wireless
Front Derailleur
None
Rear Derailleur
SRAM X0 Eagle Transmission, 12-speed, AXS electronic wireless
ISCG Tabs
ISCG05 front two bolts
Chainguide
None
Cranks
SRAM X0 Eagle Transmission Alloy DUB, 170mm length
Chainrings
SRAM X0 Eagle Transmission, 34 tooth
Bottom Bracket
SRAM DUB MTB Wide, 73mm English/BSA threaded
Pedals
None
Chain
SRAM X0 Eagle Transmission Flattop, 12-speed
Cassette
SRAM X0 Eagle Transmission XS-1295, 12-speed, 10-52 tooth
Rims
Bontrager Kovee Elite 30, OCLV Mountain Carbon, tubeless ready
Hubs
Bontrager Kovee Elite wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with Rapid Drive 108 freehub and XD driver
Spokes
Bontrager Kovee Elite wheelset
Tires
Pirelli Scorpion XC RC, Team Edition Pro Wall, aramid bead, 120 TPI, tubeless ready, 29" x 2.4"
Saddle
Trek Verse Short Pro, carbon rails, 145mm width
Seatpost
Bontrager Line dropper, MaxFlow, 170mm drop
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, plus accessory mounts under top tube
Colors
Navy Smoke
Warranty
Lifetime frame and rims; 2 years Trek/Bontrager parts, suspension linkage components, and paint/decals
Weight
26 lb 6.6 oz (11,980 g)
Miscellaneous
• ABP (Active Braking Pivot) rear suspension design
• 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
• Pair AXS components, calibrate suspension using Adaptive Ride Dynamics, customize controls, and adjust mode settings via the SRAM AXS App
Price
$9,999.99
More Info

RockShox’s XC Flight Attendant Has Landed (press release)

Trek website

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Where To Buy
Free shipping on orders over $69 (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.
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
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