Diana’s gravel grinder is a fillet brazed frame which uses a full Reynolds 725 tubeset. Some fine details that stand out: (i) the concave stainless steel reinforcement rings that provide smooth transition between headtube and headset and (ii) blind stainless steel bottle bosses which avoid long term corrosion . It allows for 700 x 40c tires and has a reasonably high stack for comfort as requested by the owner.