The Trek Superfly 9.9 SL XX1 is a mountain bike with a carbon OCLV Mountain / Armor / Micro Truss frame. The frame comes in  Trek  Black  /  True  Blue or  Powder  Blue  /  Viper  Red.

It was first released in 2014 and again in 2015. Due to the frame materials and other factors, we estimate that this bike weighs around 25 pounds. The Superfly 9.9 SL XX1 has fork suspension with 100mm travel.

Components

The Superfly 9.9 SL XX1 comes with SRAM XX1 components, including a carbon Bontrager XXX stem, a FSA IS-2 E2 headset and SRAM XX1 shifters.

Drivetrain

The Superfly 9.9 SL XX1 has 11 speeds and has SRAM XX1 rear cogs and a SRAM XX1 derailleur.

Wheels

It comes with Bontrager XR0 Team Issue tires (29in x 2.1in) and tubeless, DT Swiss XM1501 Spline One Bontrager Race X Lite rims.