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Selling fun since 1982
Your Local Bike Shop
Selling Fun for 25 Years
Trek Top Fuel 9.8 GX (2021) Gloss Red/Matte Carbon Smoke
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 with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and still f
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 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, but don't mind saving some money on the parts.
The tech you get
A light and stiff full carbon frame, 120 mm RockShox SID Select+ fork, 115 mm of rear travel with a RockShox SID Luxe Ultimate shock and a new SRAM GX Eagle drive train 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 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.
Why you'll love it
- This bike wants to go fast – it's built with no-nonsense, high-performance parts
- 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 tyre support so you can run lower pressure and get more traction
- This short-travel bike has a killer suspension set-up reminiscent of the all-mighty mullet – it's both efficient and ready to party
*spec applies to all sizes unless otherwise noted
|Fork||RockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel|
|Shock||RockShox SID Luxe Ultimate, DebonAir spring, Ultimate RL damper, 190x45 mm|
|Suspension lever||Bontrager Drop Lock remote|
|Wheel front||Bontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle|
|Wheel rear||Bontrager Kovee Elite 30 carbon, Tubeless Ready, 54T Rapid Drive, 6-bolt, SRAM XD driver, Boost148, 12 mm thru axle|
|Hub front||Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle|
|Skewer rear||Bontrager Switch thru axle, removable lever|
|Tyre||Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"|
|*Tyre part||Size: S, M, M/L, L, XL, XXL
Bontrager TLR sealant, 6oz
|Size: S, M, M/L, L, XL, XXL
Bontrager TLR valve, 50 mm
|Rim strip||Bontrager TLR|
|Shifter||SRAM GX Eagle, 12-speed|
|Rear derailleur||SRAM GX Eagle|
|Crank||SRAM GX 7K Eagle, DUB, 32T alloy ring, Boost, 175 mm length|
|Bottom bracket||SRAM DUB, 92 mm, PressFit|
|Cassette||SRAM Eagle XG-1275, 10-52, 12-speed|
|Chain||SRAM GX Eagle, 12-speed|
|Weight||M - 11.74 kg / 25.88 lbs (with TLR sealant, no tubes)|
|Weight limit||This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).|
Sizing & fit
Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
153.0 - 166.5 cm
5'0.2" - 5'5.6"
72.0 - 79.0 cm
28.3" - 31.1"
161.0 - 172.0 cm
5'3.4" - 5'7.7"
76.0 - 81.0 cm
29.9" - 31.9"
165.5 - 179.0 cm
5'5.2" - 5'10.5"
77.0 - 84.0 cm
30.3" - 33.1"
177.0 - 188.0 cm
5'9.7" - 6'2.0"
83.0 - 88.0 cm
32.7" - 34.6"
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
195.0 - 203.0 cm
6'4.8" - 6'7.9"
92.0 - 95.0 cm
36.2" - 37.4"
All measurements provided in cm unless otherwise stated.
|Frame size number||Frame size letter||Geometry position||Wheel size||A — Seat tube||B — Seat tube angle||Effective seat tube angle||C — Head tube length||D — Head angle||E — Effective top tube||F — Bottom bracket height||G — Bottom bracket drop||H — Chainstay length||I — Offset||J — Trail||K — Wheelbase||L — Standover||M — Frame reach||N — Frame stack|