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Full Suspension MTB
Trek Top Fuel 9.8 XT
$6,749.99
SKU5316142
Top Fuel 9.8 is a full suspension carbon mountain bike for riders who don't settle. Not for parts nor for one style of riding. It combines a high-end component package with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and fun to ride on techy singletrack.
OVERVIEW
It's right for you if...
You’re looking for a do-it-all full suspension mountain bike that's efficient and fast, but doesn't shy away from some bigger stuff. You want the added stiffness and weight savings of a carbon frame, but don't mind saving some money on the parts.
The tech you get
A light and stiff full carbon frame, 130mm RockShox Pike Select+ fork, 120mm of rear travel with a RockShox Deluxe Ultimate RCT shock, and a new Shimano XT 1x12 drivetrain. Plus, wide carbon Bontrager Line Elite 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, 4-piston brakes for confident descents, Bontrager Line Elite Dropper, and carbon handlebars.
The final word
Top Fuel 9.8 is a ridiculously fun carbon down-country bike with upgraded parts that give you noticeable benefits on the trail, like more speed from the carbon wheels and more grip from the ultra-smooth suspension.
SPECS
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*Please note - spec applies to all sizes unless listed separately
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| Frameset | |
| Frame |
OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel
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| Fork |
RockShox Pike Select+, DebonAir spring, Charger 3 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 130mm travel
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| Shock |
RockShox Deluxe Ultimate RCT, 185mm x 50mm
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| Wheels | |
| Wheel front |
Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
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| Wheel rear |
Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 29''
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| Skewer rear |
Bontrager Switch thru axle, removable lever
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| Tire |
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40''
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| Tire part |
Bontrager TLR sealant, 6oz
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| Rim strip | Bontrager TLR |
| Drivetrain | |
| Shifter |
Shimano XT M8100, 12 speed
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| Rear derailleur |
Shimano XT M8100, long cage
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| Crank |
Shimano XT M8120, 30T, 55mm chainline, 170mm length
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| Bottom bracket |
Shimano BB-MT501 BSA
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| Cassette |
Shimano XT M8100, 10-51, 12 speed
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| Chain |
Shimano Ultegra/XT M8100, 12 speed
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| Components | |
| Saddle |
Bontrager Arvada, austenite rails, 138mm width
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*Seatpost
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Size: S
Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length |
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Size: M, M/L
Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length |
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Size: L
Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length |
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Size: XL
Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length |
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*Handlebar/stem (integrated)
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Size: S
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm stem length |
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Size: M, M/L, L, XL
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm stem length |
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| Grips |
Bontrager XR Trail Elite, nylon lock-on
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| Headset |
Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
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| Brake |
Shimano XT M8120 4-piston hydraulic disc
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| Brake rotor |
Shimano RT86, 6-bolt, 180mm
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| Accessories | |
| Bag |
Bontrager BITS Internal Frame Storage Bag
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| Weight | |
| Weight |
M - 13.00 kg / 28.67 lbs (with TLR sealant, no tubes)
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| Weight limit |
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
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We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.
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Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
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SIZING GUIDE AND GEOMETRY
| Size | Rider Height | Inseam |
|---|---|---|
| XS |
145 - 155 cm 4'9" - 5'1" |
69 - 73 cm 27" - 29" |
| S |
155 - 165 cm 5'1" - 5'5" |
74 - 78 cm 29" - 31" |
| M |
165 - 176 cm 5'5" - 5'9" |
79 - 83 cm 31" - 33" |
| M/L |
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" |
All measurements provided in cm unless otherwise noted.
| Frame size number | 15.5" | 15.5" | 17.5" | 17.5" | 18.5" | 18.5" | 19.5" | 19.5" | 21.5" | 21.5" |
| Frame size letter | S | S | M | M | ML | ML | L | L | XL | XL |
| Geometry position | High | Low | High | Low | High | Low | High | Low | High | Low |
| Wheel size | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
| A — Seat tube | 39.5 | 39.5 | 42 | 42 | 43.5 | 43.5 | 45 | 45 | 50 | 50 |
| B — Seat tube angle | 69.9° | 69.5° | 69.9° | 69.5° | 69.9° | 69.5° | 69.9° | 69.6° | 69.9° | 69.6° |
| Effective seat tube angle | 75.9° | 75.5° | 75.9° | 75.5° | 75.9° | 75.5° | 75.9° | 75.6° | 75.9° | 75.6° |
| C — Head tube length | 10 | 10 | 10 | 10 | 10.5 | 10.5 | 11 | 11 | 12.5 | 12.5 |
| D — Head angle | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.6° | 65.9° | 65.6° |
| E — Effective top tube | 56.9 | 57 | 59.9 | 60 | 61.5 | 61.6 | 63.1 | 63.2 | 65.4 | 65.5 |
| F — Bottom bracket height | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 |
| G — Bottom bracket drop | 2.7 | 3.2 | 2.7 | 3.3 | 2.7 | 3.3 | 2.7 | 3.3 | 2.7 | 3.3 |
| H — Chainstay length | 43.4 | 43.5 | 43.4 | 43.5 | 43.4 | 43.5 | 43.4 | 43.5 | 43.4 | 43.5 |
| I — Offset | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| J — Trail | 12 | 12.3 | 12 | 12.3 | 12 | 12.3 | 12 | 12.3 | 12 | 12.3 |
| K — Wheelbase | 115.3 | 115.4 | 118.3 | 118.4 | 120 | 120.1 | 121.7 | 121.8 | 124.4 | 124.4 |
| L — Standover | 72.4 | 71.9 | 74.4 | 73.9 | 74.9 | 74.4 | 75.4 | 74.9 | 76.4 | 75.9 |
| M — Frame reach | 41.9 | 41.5 | 44.9 | 44.5 | 46.4 | 46 | 47.9 | 47.5 | 49.9 | 49.5 |
| N — Frame stack | 59.6 | 59.9 | 59.6 | 59.9 | 60 | 60.4 | 60.5 | 60.8 | 61.9 | 62.2 |