Stormchaser is Salsa's gravel bike for any and all conditions. Ample tire clearance and the single speed-compatible Alternator Flat Mount dropout system will see you through the muddiest rides. Equipped with a suspension fork and dropper post, the Stormchaser GRX 810 1x SUS lets you get rowdy with your route choices.6066-T6 aluminum frame with Class 5 Vibration Reduction System (VRS)RockShox Rudy XPLR Base suspension fork with 40 mm of travelAlternator Flat Mount dropout system capable of single speed or 1x geared drivetrain (single speed dropout plates sold separately)Three water bottle mounts in the main triangle on 56 61 cm frames, and two on 49 54.5 cm framesTop tube mount for Salsa EXP Series Direct Mount Top Tube Bag and additional bottle or accessory mount on underside of down tubeInternal cable routing, dropper post-compatibleItem SpecificationsBrake TypeDiscColorBlackDefined ColorBlackFork MaterialAluminumFork TypeSuspensionFrame MaterialAluminumFrame TypeRigidFront Axle12mm Thru x 100mmMfg Size59PlatformStormchaserRear Axle12mm Thru x 142mmTT (Effective)590Wheel Size700c Salsa Stormchaser GRX 810 1x SUS Bike - Black Gravel Bike UPC: 657993283899