Alpinestars al-mega XT

[CLASS OF 91]

Hi im currently building a alpinestars al mega xt and im wondering what year , its got the reinforced gusset on the head tube , the frame in brand new as it stood in a Italian bike shop for 30+ years , also im changing the 1 1/4 headset I've just fitted to the mavic type will this fit ? I think its the 317 type
Thanks Rob

 

[CLASS OF 91]

Hi im currently building a alpinestars al mega xt and im wondering what year , its got the reinforced gusset on the head tube , the frame in brand new as it stood in a Italian bike shop for 30+ years , also im changing the 1 1/4 headset I've just fitted to the mavic type will this fit ? I think its the 317 type
Thanks Rob

Also im changing it to a quill type stem a control tech version but I think il need a reducer