This is the regular specs option design for professional Mountain bike rider, outer line routing design. about the design: XACD made titanium gravel bike frame with following specs options: 1. titanium mountain/gravel bike frame with 1-1/8″ 34mm head tube, this is the normal size and specs for headset, the matched headset can be easy to find in the market. 2. sliding dropout, add kickstand mount and rear rack mount; you can install the rear rack when you outing out for the long-distance touring. 3. handing brush finished silver, sharp sliver color in the sunshine. 4. “S ” shape bending seat stay, Increased frame toughness and shock absorption. All the specs options and size can be custom base on your request. About the fork, if you install the fork then you need tell us what the fork length size you need, then we will design the frame to good match with these current products you use. For more information, please visit:https://www.ti-bikes.com/titanium-bike-frame/titanium-cyclocross-bike-frame/titanium-gravel-bike-frame.html