2017 GT Force! Frame size is a Large. 160mm of travel in the front and 150 in the rear. The 2018 model is the exact same as the 2017. Frame Material:FOC Ultra CarbonSuspension:Angle Optimized SuspensionRear Shock:RockShox Monarch Plus RCT3Rear Travel:150mmFork:RockShox Pike RCT3Front Travel:160mmHeadset:1-1/8 - 1-1/2in FSA Orbit C-40-ACBShifters:SRAM X1 1x11 TriggerFront Derailleur:n/aRear Derailleur:SRAM X01 11-speedCrankset: 30t Race Face TurbineBottom Bracket:Race FaceCassette:10 - 42t SRAM XG 1150 11-speedChain:SRAM PC-X1Brakeset: SRAM Guide RSBrake Type:hydraulic discRotors: [front] 200mm SRAM Centerline, [rear] 180mm SRAM CenterlineHandlebar:Race Face Atlas 35Handlebar Rise:10mmHandlebar Width:700mmGrips:GT Statement Double Lock-onStem:Race Face Atlas 35Stem Length:50mmSaddle:WTB Silverado Race SLSeatpost:RockShox Reverb StealthSeatpost Diameter: 34.9mmSeat Collar:38.1mm All Terra Alloy QRWheelset:[rims] Stan's NoTubes Flow MK3Hubs:[front] DT Swiss 350, [rear] DT Swiss 350 w/ 36t star ratchet driverFront Axle:15 x 110mm Boost thru-axleRear Axle:12 x 142mm thru-axleTires: Front Tire: Continental Trail King 27.5 - 2.4", Rear Tire: Continental Kryptotal 27.5 - 2.4"Tire Size:27.5Manufacturer Warranty: lifetime on frameMSRP: $6,390Bike will be boxed and shipped by local bike shop.You will pay bike shop directly for shipping and insurance.Please inquire about shipping pricing to your location.SizeSMLXLTop Tube Length567mm600mm629mm657mmHead Tube Angle66.7°66.7°66.7°66.7°Head Tube Length98mm114mm130mm147mmSeat Tube Angle73.3°73.3°73.3°73.3°Seat Tube Length425mm455mm480mm505mmBottom Bracket Height352mm352mm352mm352mmChainstay Length443mm443mm443mm443mmWheelbase1131mm1166mm1197mm1229mmStandover755mm766mm778mm798mmReach392mm425mm449mm473mmStack585mm597mm612mm627mm