Centurion MT1-Pro CrMo refers to an even thinner tubing - for the year '96 this would be 0,8-0,5-0,8 mm double butted tubing. Not sure if it was the same in the years before/after.
Edit: I just realized that I am using 43mm tyres, not 45mm as stated above. Sorry! Originally 42mm tyres were used.