Trek Fuel+ MX 9.9 X0 AXS Gen 3
Trek / Electric Mountain Bikes
One bike for every kind of trail.
Fuel+ MX 9.9 X0 AXS is a full-power trail bike built for big power, long range, and performance. The new TQ HPR X system delivers up to 120Nm of torque and boosts pedaling power up to 8x, while Trek’s exclusive 980 Modular Battery System lets you tailor range. A 160mm RockShox Lyrik Ultimate fork and Super Deluxe Ultimate RC2T shock with 150mm of rear travel provide exceptional traction and control — and the mixed-wheel setup delivers agile, playful handling. Bontrager Line Pro carbon wheels and a wireless SRAM X0 AXS Transmission drivetrain keep the ride fast, precise, and ready for anything.
Based on the bike's size chart. Your complimentary baseline fit in store dials in the rest.
Not currently available from Trek
Questions are welcome. No pressure, no bike jargon required.
The ride, not just the specs
Fuel is the all-around trail bike: smooth on the climbs, playful on the way down, and happy on just about any trail you point it at.
If you want one mountain bike that can do a bit of everything, start here.
What makes it special
Only you can define your perfect trail bike — that's why Fuel+ is available in three adjustability-packed configurations. Get do-it-all capability with EX, go pop-happy with MX, or charge through it all with LX.
Want more bottom-out resistance without giving up small-bump sensitivity? Flip the chip in the lower shock mount for a more progressive leverage rate.
With a ZS standard headset, you've got tons of options for aftermarket upgrades, including angle adjust or anodized colors.
For the detail-oriented
Tap any group to see every part.
Measurements in cm unless noted.
| Size | S | M | L | XL |
|---|---|---|---|---|
| Rider height | 5'1"–5'5" | 5'5"–5'10" | 5'10"–6'2" | 6'2"–6'5" |
| Seat tube (A on the drawing) | 37.0 | 40.0 | 42.0 | 45.5 |
| Seat tube angle (B on the drawing) | 72.2° | 72.2° | 72.2° | 72.2° |
| Head tube length (C on the drawing) | 11.0 | 11.0 | 12.5 | 14.0 |
| Head tube angle (D on the drawing) | 64.1° | 64.1° | 64.1° | 64.1° |
| Eff. top tube (E on the drawing) | 56.4 | 59.7 | 63.0 | 66.4 |
| BB height (F on the drawing) | 34.2 | 34.2 | 34.1 | 34.1 |
| BB drop (G on the drawing) | 3.2 | 3.2 | 3.2 | 3.2 |
| Chainstay length (H on the drawing) | 44.6 | 44.6 | 44.6 | 45.0 |
| Offset (I on the drawing) | 4.4 | 4.4 | 4.4 | 4.4 |
| Trail (J on the drawing) | 13.3 | 13.3 | 13.3 | 13.3 |
| Wheelbase (K on the drawing) | 120.7 | 123.7 | 126.8 | 130.4 |
| Standover (L on the drawing) | 75.7 | 75.0 | 75.4 | 75.8 |
| Reach (M on the drawing) | 42.5 | 45.5 | 48.0 | 50.5 |
| Stack (N on the drawing) | 62.8 | 62.8 | 64.2 | 65.5 |
| Wheel size | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" |
| Eff. seat tube angle | 77.5° | 77.2° | 76.8° | 76.2° |
| Front Center | 76.5 | 79.5 | 82.6 | 85.7 |
The Atlanta Cycling difference
Specs matter. But so does how a bike feels when you ride it. Our team is here to help you choose the right size, understand the details, and get comfortable before your first ride.
When you buy from Atlanta Cycling, you're not just getting a box with a bicycle in it. You're getting a 30-day money-back guarantee, a complimentary baseline fit, lifetime basic adjustments, and real people who want you to love every mile.
“Best All Around”
Trek delivered something very special in the Fuel + LX. While nothing about it looks too radical or different, the performance is really all you need to focus on. This bike had our crew nodding in approval throughout testing.
theloamwolf.com · Read the review
Four neighborhood stores. One shared passion.
Ansley. Alpharetta. Roswell. Vinings. Stop by, take a test ride, ask questions, and meet the people who will be here long after your first ride.
