Its been a while since I've built with a straight/external headset-headtube. This one has just enough room for a Marzocchi's knobs. This frame has got room for a 26t sprocket and the biggest round profile tires available (Maxxis 2.5"s) at 14.9" slammed
A few reasons why internally machined headtubes are better for MTBs: they require less heat for welding, as they have a constant wall thickness (making the weld stronger!). It is also much easier to mitre the main tubes against them, as they don't have complex curves to contend with. This tighter fit makes for a stronger weld. They look really clean with a suspension fork.
in less than a month we'll have the first RedBull barrel race over at Hilltop. The CTY guys finished the track in less than a few weeks. Hopefully the rain won't prevent the big trails from finally getting built to completion.