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 parts package—including a new SRAM GX Eagle AXS wireless electronic drivetrain—with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and fun to ride on techy singletrack.
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, and want blazing fast wireless electronic shifting.
The tech you get
A light and stiff full carbon frame, 120mm RockShox SID Select+ fork, 120mm of rear travel with a SID Luxe shock, and a SRAM GX Eagle AXS wireless electronic drivetrain with an extra-low 52-tooth climbing gear. Plus, wide carbon Bontrager Line Elite 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, 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 big benefits on the trail, like more speed from the carbon wheels, more grip from the ultra-smooth suspension, and faster, more precise shifts from the AXS drivetrain.
Why you'll love it
- The SRAM GX Eagle AXS drivetrain is smart, smooth, and completely wireless
- This bike's killer suspension setup is both efficient and ready to party
- A sleek internal storage compartment gives you a versatile spot to stow tools and gear
- Wider Line Elite 30 wheels provide better tire support so you can run lower pressure and get more traction
|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||Small||Small||Medium||Medium||Medium/
|A — Seat tube (cm)||39.5||39.5||42||42||43.5||43.5||45||45||50||50|
|B — Seat tube angle||70.4°||70.0°||70.4°||70.0°||70.4°||70.0°||70.4°||70.0°||70.4°||70.0°|
|Effective seat tube angle||76.4°||76.0°||76.4°||76.0°||76.4°||76.0°||76.4°||76.0°||76.4°||76.0°|
|C — Head tube length (cm)||10||10||10||10||10.5||10.5||11||11||12.5||12.5|
|D — Head angle||66.4°||66.0°||66.4°||66.0°||66.4°||66.0°||66.4°||66.0°||66.4°||66.0°|
|E — Effective top tube (cm)||56.7||56.8||59.7||59.8||61.4||61.5||63||63.1||65.3||65.4|
|F — Bottom bracket height (cm)||34.3||33.8||34.3||33.8||34.3||33.8||34.3||33.8||34.3||33.8|
|G — Bottom bracket drop (cm)||3.1||3.6||3.1||3.6||3.1||3.6||3.1||3.6||3.1||3.6|
|H — Chainstay length (cm)||43.4||43.5||43.4||43.5||43.4||43.5||43.4||43.5||43.4||43.5|
|I — Offset (cm)||4.4||4.4||4.4||4.4||4.4||4.4||4.4||4.4||4.4||4.4|
|J — Trail (cm)||11.5||11.8||11.5||11.8||11.5||11.8||11.5||11.8||11.5||11.8|
|K — Wheelbase (cm)||115||115.1||118||118.1||119.7||119.8||121.4||121.5||124||124.1|
|L — Standover (cm)||71.9||71.5||74||73.5||74.5||74||75||74.5||76||75.5|
|M — Frame reach (cm)||42.4||42||45.4||45||46.9||46.5||48.4||48||50.4||50|
|N — Frame stack (cm)||59.2||59.5||59.2||59.5||59.7||60||60.1||60.5||61.5||61.8|
Due to supply-chain issues, Specs are subject to change without notice.
|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|
|Fork||RockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel|
|Rear Shock||RockShox Deluxe Ulitmate RCT, 185mm x 50mm|
Front: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Rear: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle
|Tires||Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29.x2.40''|
|Bottom Bracket||SRAM DUB MTB Wide, 73mm, BSA threaded|
|Crankset||SRAM GX Eagle, DUB MTB Wide, 30T, 55mm chainline|
|Shifters||SRAM GX Eagle AXS, 12 speed|
|Rear Derailleur||SRAM GX Eagle AXS|
|Cassette/Freewheel||SRAM Eagle XG-1275, 10-52, 12 speed|
|Chain||SRAM GX Eagle, 12 speed|
|Brakes||SRAM G2 RS 4-piston hydraulic disc|
|Rotors||SRAM CenterLine, 6-bolt, round-edge|
|Handlebars||Bontrager Line Pro, OCLV Carbon, 35mm|
|Stem||Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length|
|Headset||Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8" top, 1.5" bottom|
|Seatpost||Bontrager Line Elite Dropper, MaxFlow, internal routing, 34.9mm|
|Saddle||Bontrager Arvada, austenite rails, 138mm width|
* Subject to change without notice.
|Carbon Red Smoke/Trek Black / Medium||601842653951||5261917||TOP38800127K|
|Carbon Red Smoke/Trek Black / Medium/Large||601842653944||5261918||TOP39916776K|
|Carbon Red Smoke/Trek Black / Large||601842653937||5261919||TOP38152894K|
|Matte Raw Carbon / Large||601842654033||5261907||TOP29884153N|