-Headset with 67 degree slack angle -Long reach for medium size -Chain stays are 444.5mm for perfect balance between traction and stability -Optimized wheel size for 29er -Simple manufacturing, swing arm pivotless -Metric shock(trunnion mount)165*45mm, get more compact -Pivotless system on the back that is stiff and simple -Active and sensitive suspension ratio gradient, works very well with air shock Frame: 2019 New full suspension trail mountain bike frameset Material: High modulus Toray T700 carbon fiber Size: 17.5'', 19'',20.5'' (Medium, Large, Xlarge) Front Travel: 130-150mm Rear Travel: 130mm Headtube: Tapered 1 1/8 "- 1 1/2"head tube, upper 42mm lower 52mm (Headset standard FSA No.42ACB) Weight: 2400g/17.5'' Seatpost Diameter: 31.6mm(37mm clamp)-Dropper seatpost insert length 17.5''=170mm 19''=200mm Bottom Bracket: BSA -73mm Compatible with ISCG-05 chain guide Max Tire Clearance: 29er*2.4'' and 27.5*2.8'' Max Compatible Chainring : 34T Rotor: 180mm Front Derailleur: Single chainring 1x drivetrain system Rear Shock: 165*45mm trunnion mount rear shocks(54*�?10mm - 30*8mm) Dropout: 12*148mm boost thru axle Test Standard: ISO4210 Warranty: 2 years