Full Carbon 29ER Mountain Bike Frame + ForkWheek Size: 29"BB Type :BSA English Thread (if need BB30, Plz contact us)Headset size : 1 1 /2" Head Tube Reduced to 1-1/8" Fork Tube Threadless Headset Full Carbon Mountain Bike MTB 29er BSA Frame 19" Fork,x-goods x-goods