Smaller frames (S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
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 and wireless electronic drivetrain with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and still 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 the performance upgrade of a fully wireless electronic drivetrain.
The tech you get
A light and stiff full carbon frame, 120mm RockShox SID Select+ fork, 115mm of rear travel with a RockShox SID Luxe Ultimate shock, and a SRAM GX Eagle AXS wireless electronic drivetrain with an extra-low 52-tooth climbing gear. Plus, wide carbon Bontrager Kovee Elite 30 wheels with a 54-tooth Rapid Drive hub for fast engagement, Bontrager Line Elite Dropper, and powerful 4-piston brakes.
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, more grip from the ultra-smooth suspension, and more precise shifts with a SRAM AXS drivetrain.
Why you'll love it
- The SRAM GX Eagle AXS drivetrain is smart, smooth, and completely wireless
- You get a Straight Shot downtube for extra-stiff, responsive handling without added weight, and a Knock Block headset that protects against spinning bars and fork crowns
- Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiently. Plus, it controls your dropper post too
- Wider Kovee Elite 30 wheels provide better tire support so you can run lower pressure and get more traction
- This short-travel bike has a killer suspension setup reminiscent of the all-mighty mullet—it's both efficient and ready to party
|S (High)||S (Low)||M (High)||M (Low)|
|D. Effective Top Tube||56.3cm||56.4cm||59.8cm||59.9cm|
|E. Head Tube Angle||68.0°||67.5°||68.0°||67.5°|
|F. Head Tube Length||9cm||9cm||9cm||9cm|
|G. Seat Tube Angle||75.5°||75.0°||75.5°||75.0°|
|H. Seat Tube Length||39.4cm||39.4cm||41.9cm||41.9cm|
|I. Bottom Bracket Height||34.3cm||33.7cm||34.3cm||33.7cm|
|J. Bottom Bracket Drop||3cm||3.6cm||3cm||3.6cm|
|K. Fork Rake/Offset||4.4cm||4.4cm||4.4cm||4.4cm|
|O. Chainstay Length||43.4cm||43.5cm||43.4cm||43.5cm|
Due to supply-chain issues, Specs are subject to change without notice.
|Frame||OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel|
|Fork||RockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel|
|Rear Shock||RockShox SID Luxe Ultimate, DebonAir spring, Ultimate RL damper, 190x45mm|
|Wheels||Bontrager Kovee Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 54, XD Driver, 6-bolt, 148x12 rear, 110x15 front|
|Tires||Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29 x 2.40"|
|Bottom Bracket||SRAM DUB, 92mm, PressFit|
|Crankset||SRAM GX 7K Eagle, DUB, 32T alloy ring, 52mm 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, 180/160mm|
|Handlebars||Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width|
|Tape/Grips||Bontrager XR Trail Elite, nylon lock-on|
|Stem||Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree|
|Headset||Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom|
|Seatpost||Bontrager Line Elite dropper, MaxFlow, internal routing, 31.6mm|
|Saddle||Bontrager Montrose Elite, titanium rails, 138mm width|
|Accessories & Extras||Bontrager TLR sealant, 6oz; Bontrager TLR valve, 50mm|
* Subject to change without notice.
|Gloss Red/Matte Carbon Smoke / Medium||601842622742||5261364||TOP39234389E|
|Carbon Blue Smoke/Radioactive Coral / Small||601842622704||5261368||TOP46787061L|
|Carbon Blue Smoke/Radioactive Coral / Medium||601842622698||5261369||TOP46395936L|
|Carbon Blue Smoke/Radioactive Coral / Medium/Large||601842622681||5261370||TOP47495152L|
|Carbon Blue Smoke/Radioactive Coral / Large||601842622674||5261371||TOP46569509L|
|Carbon Blue Smoke/Radioactive Coral / X-Large||601842622667||5261372||TOP47378409L|
|Matte Raw Carbon/Voodoo Trek Black / Medium||601842622797||5261359||TOP44895109K|