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Session 9.9 is the pinnacle of downhill mountain bike performance. This is the same DH bike the pros ride, and it's built for one reason: going as fast as freakin' possible downhill. It pairs a SRAM X01 DH drivetrain and Code RSC brakes with our premium OCLV Mountain Carbon frame and top-shelf RockShox suspension. Compare. Color / Viper Red.
- SRAM DUB, 83mm, BSA threaded
- SRAM X01 DH, 7 speed
- SRAM X01 DH, medium cage
Session 9.9 is the pinnacle of downhill mountain bike performance. It's built for one reason: going as fast as freakin' possible down hills. It pairs proven Shimano Saint parts with our premium OCLV Mountain Carbon frame and FOX Factory suspension. This is the same DH bike the pros ride, and the bike of choice for World Champion Rachel Atherton.
- Who Is It Made for?
- What Is It Made from?
- Which Components Stand out?
- How Does It Perform?
- Tricks, Upgrades Or Tips?
- Buying Advice
The Session has been in Trek’s lineup for years now and has featured many wheel sizes along the way, starting with the 26-inch wheel and later moving towards the 27.5-inch model, which is still available today. The 29er version was only offered as a frame, fork and shock package until the 2019 model year when Trek unveiled the bike we have here tod...
Trek designed the Session around many of its flagship technologies that we’ve come to know and love, such as OCLV (Optimum Compaction Low Void) Mountain carbon. OCLV is a process used across Trek’s carbon mountain bike lineup to ensure the right balance of stiffness, strength and durability. A Mino Link Flip Chip, along with fixed-angle headset cup...
The Session 9.9 is a purebred race bike equipped with nothing but the best. Starting with its suspension, we see a 190mm-travel Fox Factory 49 fork, which builds off the popular Fox 40; however, the arch is modified to allow clearance for a taller wheel. In back, Trek spec’d a 2019 Fox Factory Float X2 with a new mechanical bottom-out bumper to pro...
Setting sag:Trek spec’d the Session with Fox Factory-level suspension, which we opted to set up with 30-percent sag front and rear. We then made adjustments to our compression and rebound until we found our sweet spot. The Session’s rear air shock made it easy to set sag without having to worry about swapping a coil spring. This means riders of all...
Trek offers the Session as a frame-only option or as the compete model we tested. Our bike came with components suited for a pro racer; however, we made a few changes to enhance our control and confidence. First things first, we trimmed our seatpost to achieve a deeper insertion, allowing for more room to move above the bike. We then swapped out th...
Diehard downhill racers are more likely to purchase this bike than park rats. Trek designed this bike for riders looking for the fastest way down the mountain who aren’t afraid to put up the cash to do so. Trek continues to offer the 27.5-inch model, which sells for a more affordable $4730, and will likely suit the needs of riders wanting a fun par...
Oct 8, 2018 · The Session 9.9 is the latest iteration of this race-bred machine, with 29" wheels and a lightweight, full OCLV carbon frame that uses Trek's familiar-looking four bar suspension design.
- Paul Aston
With eight or more years development behind it the Trek Session 9.9 has evolved into a highly regarded, almost intimidating race bike that delivers pace, well constructed damping characteristics and an impeccable build quality.
Session 9.9 29. A 29″ carbon frame full suspension downhill bike with high-end components. Compare the full range.
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We've said it before and we'll say it again, the Trek Session 9.9 is a fun loving race weapon. This sub 35 pound 210mm travel equipped machine has proven its worth time and time again on the World Cup scene. Beyond the races, though, we found the bike to be incredibly comfortable, agile, and stable.
