Hey I bought a 1" Black tioga headset from Alans about 2 months ago for my TA but when I got it the cups were too small and had to send it back. I think this is what you're after. Normal cups measure about 32.7mm Dia but you need about 30.2mm dia. This is the difference, check the thread on the forks with a normal 1" top nut, if it fits then this is what you want. Soot. (think I may have an odyssey pro needle bearing headset in red, that size somewhere?)