Giant's Revolt series has been around for more than a decade and has often been featured in the best gravel bike guides.

Now, however, Giant has upgraded the Revolt platform with the introduction of the suspension-equipped Revolt X series. According to Giant, the new series is targeted at the more adventurous end of the gravel spectrum, with suspension-optimized frame geometry that combines control, efficiency, and higher performance on rough terrain.

The new series consists of three composite-frame Revolt X Advanced Pro models and an ALUXX aluminum Revolt X Series model. All models feature RockShox Rudy 40mm suspension forks up front, and the framesets and cockpits are designed for compliance.

The frame geometry is said to help this by allowing the rider to adjust the bike's wheelbase by 10mm with a longer reach and adjustable flip-tips on either side of each dropout, while simultaneously increasing tire clearance to 53mm. The shorter wheelbase allows for a quicker, more agile ride and up to 42mm of tire clearance. In addition, Giant's cross-cut tires are factory set up tubeless in the factory 45mm size.

Seatposts are available in three different versions: a dropper post, a unique D-Fuse seatpost, and a 30.9mm round model. Seatpost adapters accommodate these changes. Up front, all models are equipped with Giant Contact SL D-Fuse handlebars, which absorb shock and vibration to minimize fatigue.

The Giant Overdrive headset standard is also featured on both bikes, featuring tapered steerer tubes and 1 1/4" lower and 1 1/8" upper headset bearings. The composite frame uses an 86mm press-fit bottom bracket, while the ALUXX uses a 68mm BSA standard.

Frame sizes are available from S to XL, with stack and reach of 576mm and 389mm, respectively, on the medium frame, and a flip-tip orientation on the medium frame changes the head tube angle by a tenth of a degree, from 71.4 degrees to 71.5 degrees.

The Advanced Pro 1 model features the RockShox Rudy Ultimate XPLR model with Race Day Charger damper. All other models are equipped with the standard RockShox Rudy XPLR.

Composite models will be available in April, and aluminum bikes in May.