Skip to main content

Trek Top Fuel 9.8 XT Di2 Gen 4

Trek Top Fuel 9.8 XT Di2 Gen 4
  • Color: Dark Star
  • Color: Matte Sedona Red/ Pennyflake
$8,499.99
Color:
Size: Select size
Wheel Size: Select wheel size
Please select options Unavailable
Item currently out of stock.

Details

Top Fuel 9.8 is a lightweight carbon trail bike built to rip up climbs and stay playful on descents. It gives you the confidence you want through roots and rocks, thanks to a 120mm/130mm (rear/front) RockShox suspension package with a Pike Select+ fork and Deluxe Ultimate shock. Plus, you get ultra-smooth and fast shifts from a 12-speed Shimano XT Di2 wireless drivetrain.

Smart Wheel Sizing:
Small: 27.5-inch
Medium - X-Large: 29-inch

Geometry

Sizes:
Frame size letterSSMMMLMLLL
Geometry position High Low High Low High Low High Low
Wheel size 27.5" 27.5" 29" 29" 29" 29" 29" 29"
A — Seat tube 36 36 41 41 42 42 43.5 43.5
B — Seat tube angle 69.5° 69.0° 70.5° 70.0° 70.5° 70.0° 70.5° 70.0°
Effective seat tube angle 76.5° 76.0° 77.3° 76.9° 76.6° 76.2° 76.3° 75.9°
C — Head tube length 10.5 10.5 10.5 10.5 11 11 11.5 11.5
D — Head angle 65.9° 65.5° 65.9° 65.5° 65.9° 65.5° 65.9° 65.5°
E — Effective top tube 55.8 55.9 58.7 58.8 61.1 61.2 63 63.1
G — Bottom bracket drop 1 1.6 2.6 3.2 2.6 3.2 2.6 3.2
H — Chainstay length 43.4 43.5 43.4 43.5 43.9 44 43.9 44
I — Offset 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3
J — Trail 11.1 11.5 12.1 12.5 12.1 12.5 12.1 12.5
K — Wheelbase 115 115.1 118.8 118.8 121 121 122.7 122.7
L — Standover 70.5 70 75.5 75 75.7 75.2 75.8 75.3
M — Frame reach 42.2 41.7 45.2 44.7 46.7 46.2 48.2 47.7
N — Frame stack 56.6 57 59.9 60.3 60.4 60.7 60.8 61.2
Sizes:
SizeRider HeightInseam
S 155 - 165 cm
5'1" - 5'5"
74 - 78 cm
29" - 31"
M 165 - 177 cm
5'5" - 5'10"
79 - 83 cm
31" - 33"
ML 173 - 180 cm
5'8" - 5'11"
81 - 86 cm
32" - 34"
L 177 - 188 cm
5'10" - 6'2"
84 - 89 cm
33" - 35"
XL 188 - 195 cm
6'2" - 6'5"
89 - 91 cm
35" - 36"

Specs

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
Fork RockShox Pike Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 130mm travel
Rear Shock RockShox Deluxe Ultimate RCT, 185mm x 50mm
Wheels Front Wheel: Size: S Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5"/Size: XL, L, M, ML Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
Rear Wheel: Size: S Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 27.5"/Size: XL, L, M, ML Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 29''
Tires Size: S Bontrager Gunnison RSL XT, Tubeless Ready, triple compound, aramid bead, 120 tpi, 27.5x2.40"/Size: XL, L, M, ML Bontrager Gunnison RSL XT, Tubeless Ready, triple compound, aramid bead, 120 tpi, 29x2.40"
Bottom Bracket Shimano BB-MT501 BSA
Crankset Shimano XT 8200, 30T, 55mm chainline, 170mm length
Shifters Shimano XT Di2 M8250, 12 speed
Rear Derailleur Shimano XT M8250, long cage
Cassette/Freewheel Shimano XT M8200, 10-51, 12 speed
Chain Shimano Ultegra/XT M8100, 12 speed
Brakes Shimano XT M8200 4-piston hydraulic disc
Rotors Shimano RT86, 6-bolt, 180mm
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
Tape/Grips Trek Line Elite, lock-on
Stem Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 35mm length
Seatpost Size: S Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length/Size: M, ML Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length/Size: XL, L Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length
Saddle Verse Short Comp, steel rails, 145mm width

* Subject to change without notice.

Videos

Part Numbers

Option UPC MPN Store SKU
Dark Star / Small / 27.5-inch 197216206569 5333127 TOP255888954
Dark Star / Medium / 29-inch 197216206576 5333128 TOP222543554
Dark Star / Medium/Large / 29-inch 197216206583 5333129 TOP239169864
Dark Star / Large / 29-inch 197216206590 5333130 TOP221568814
Matte Sedona Red/ Pennyflake / Small / 27.5-inch 197216206613 5333132 TOP41532854
Matte Sedona Red/ Pennyflake / Medium / 29-inch 197216206620 5333133 TOP386921894
Matte Sedona Red/ Pennyflake / Medium/Large / 29-inch 197216206637 5333134 TOP391296044
Matte Sedona Red/ Pennyflake / Large / 29-inch 197216206644 5333135 TOP382595904

Reviews