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Trek

2025 | Top Fuel 9.9 XX AXS Gen 4

$13,999.99

Shipping calculated at checkout.

Color: Lunar Silver

Size: Small

Small Medium Large Medium/Large X-Large

SKU:TRE416958864

Shipping & Returns

We care about your bike. We understand the excitement of unboxing a brand new bike and make sure you get the best experience when receiving your new bike.

Canadian shipping charges:

Sale bikes: $200
Standard pedal bikes over $1250: Free
Standard pedal bikes under $1250: $100
Electric bikes: $200
Fat bikes: $200
Kid's bikes: $60

Insurance charge: 1.5% insured value

We are currently offering gift cards to partially offset the price of shipping a bike! Visit our shipping page for more details

Bike Specifications

Specifications are subject to change without notice

Drivetrain

Cassette SRAM Eagle XS-1299, T-Type, 10-52, 12 speed

Chain SRAM XX Eagle, T-Type, 12 speed

Rear derailleur SRAM XX SL Eagle AXS, T-Type

Brakes

Brake rotor SRAM HS2, 6-bolt, 180mm

Brake type Hydraulic disc

Caliper SRAM Level Ultimate 4-piston hydraulic disc // SRAM Level Ultimate Stealth 4-piston hydraulic disc

Cockpit

Handlebars Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm stem length

Saddle Verse Short Pro, carbon rails, 145mm width

Seatpost RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length

Wheels

Tires Bontrager Montrose RSL XT, Tubeless Ready, triple compound, aramid bead, 120 tpi, 29x2.40' // Bontrager Gunnison RSL XT, Tubeless Ready, triple compound, aramid bead, 120 tpi, 29x2.40'

Valves Bontrager TLR sealant, 180 ml/6 oz

Wheel size Size Specific

Suspension

Fork RockShox Pike Ultimate, DebonAir spring, Charger 3.1 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel

Fork brand RockShox

Shock RockShox Deluxe Ultimate RCT, 185mm x 50mm

Shock brand RockShox

Frame

Bottom bracket SRAM DUB MTB Wide, 73mm, BSA threaded

Frame OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel

Frame material Carbon

Platform wheel size 27.5" - (XS-S) | 29" - (M-XXL)

Seatpost RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length

Weight as spec d M - 12.85 kg / 28.33 lbs (with TLR sealant, no tubes)

Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

E-Bike System

Battery SRAM eTap battery pack (with charger)

Battery type Li-Ion 300mAh 7.4 Volt

Description

Top Fuel 9.9 XX AXS Gen 4 is an ultra-light and capable carbon trail bike that's built for soaring up climbs and rallying over miles of singletrack. This top-level build delivers the performance you want, with a RockShox Ultimate suspension package (120mm/130mm), and SRAM's lightest wireless XX AXS transmission that shifts smooth and easy, especially under load. It's topped off with carbon wheels to keep your ride light from top to bottom.

Geometry Chart

Measurement	Small	Small	Medium	Large	Medium / Large	X-Large
Reach (mm)	422	422	452	482	467	512
Stack (mm)	566	566	599	608	604	626
Head Tube Angle (°)	65.9°	65.9°	65.9°	65.9°	65.9°	65.9°
Seat Tube Angle (°)	69.5°	69.5°	70.5°	70.5°	70.5°	70.5°
Wheelbase (mm)	1150	1150	1188	1227	1210	1270
Chainstay Length (mm)	434	434	434	439	439	444
Head Tube Length (mm)	105	105	105	115	110	135
Seat Tube Length (mm)	360	360	410	435	420	470
BB Drop (mm)	10	10	26	26	26	26
Rake (mm)	43	43	43	43	43	43
Trail (mm)	11	11	12	12	12	12
Axle to Crown (mm)	566	566	599	608	604	626

Part Numbers

Size	Lunar Silver	Axinite Flip	Matte Dark Web
Small	SKUTRE416958864 VPNTrek_5319408 UPC197216000198 MPN5319408	SKUTRE416222914 VPNTrek_5320423 UPC197216011361 MPN5320423	SKUTRE424999904 VPNTrek_5319403 UPC197216000143 MPN5319403
Medium	SKUTRE384135274 VPNTrek_5319409 UPC197216000204 MPN5319409	SKUTRE387457754 VPNTrek_5320424 UPC197216011378 MPN5320424	SKUTRE397252644 VPNTrek_5319404 UPC197216000150 MPN5319404
Large	SKUTRE387594434 VPNTrek_5319411 UPC197216000228 MPN5319411	SKUTRE383390834 VPNTrek_5320426 UPC197216011392 MPN5320426	SKUTRE397919224 VPNTrek_5319406 UPC197216000174 MPN5319406
Medium/Large	SKUTRE395592394 VPNTrek_5319410 UPC197216000211 MPN5319410	SKUTRE39465324 VPNTrek_5320425 UPC197216011385 MPN5320425	SKUTRE407855034 VPNTrek_5319405 UPC197216000167 MPN5319405
X-Large	SKUTRE399843484 VPNTrek_5319412 UPC197216000235 MPN5319412	SKUTRE3981354 VPNTrek_5320427 UPC197216011408 MPN5320427	SKUTRE406667874 VPNTrek_5319407 UPC197216000181 MPN5319407

Size Chart

Trek | Mountain

Size	Rider height (in)	Rider height (cm)	Inseam (in)	Inseam (cm)
X-Small	4'9" - 5'1"	145 - 155 cm	27" - 29"	69 - 73 cm
Small	5'1" - 5'5"	155 - 165 cm	29" - 31"	74 - 78 cm
Medium	5'5" - 5'10"	165 - 177 cm	31" - 33"	79 - 83 cm
Medium/Large	5'8" - 5'11"	173 - 180 cm	32" - 34"	81 - 86 cm
Large	5'10" - 6'2"	177 - 188 cm	33" - 35"	84 - 89 cm
X-Large	6'2" - 6'5"	188 - 195 cm	35" - 36"	89 - 91 cm
XX-Large	6'5" - 6'8"	195 - 203 cm	36" - 38"	91 - 97 cm

2025 | Top Fuel 9.9 XX AXS Gen 4