Model:HMF007 Size: 15"/17"/19"/21" Weave: UD/3K Frame weight: 990±40g (19" SIZE ) BB:BSA (73MM) / BB30(73MM) / PF30(73MM) Headset-top: 1-1/8" Headset-down: 1-1/2" Cable System : Internal cable routing DI2 Compatible. AXLE :QR 135x9mm or thru-axel 142x12mm Test : CEN Tested Quality guarantee: 2 years .