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59-60cm frame, Sun Tour Superbe Pro Brakes, Shifter, front and rear derailleur, and complete Crank is Sun Tour Superbe Pro. Campagnolo head set and pedals. Cinelli 64-40 handle bar and Cinelli stem. It's an Italian make I'm sure. Serial number on the BB is BMZ 09 is all I can make out. Any help is greatly appreciated!

  • 3
    The bike's a beauty. :)
    – ditsuke
    Sep 2, 2017 at 11:29
  • 2
    Cotterless cranks, downtube shifters, 6-speed rear. This lobbies for 1980-ish. But those EYEtalians have always been weird, so the date is a bit harder to pin down. Sep 2, 2017 at 12:42
  • That one piece aluminum handlebar stem should be checked to make sure it's not one of the "death stems."
    – RoboKaren
    Sep 8, 2017 at 0:53

3 Answers 3


BMZ presumably stands for Biemmezeta, an Italian manufacturer from near Milan who did a lot of contract manufacturing for a lot of places (e.g. Performance Cycles) as well as sold bicycles under their own brand. More details on your location may help narrow down the bike's pedigree.

As Daniel R Hicks estimates the date of the bike in the comments, it should be noted that BMZ was popular in the 1980s.


I believe your bike is actually an italian frame built by palo alto bikes in the early to mid 80's

see catalog, it looks Biemmezeta frame built by palo alto bikes

  • 1
    The trim is slightly different on the Palo Alto bikes (on the top of the fork, seat stays, etc.), but Palo Alto did use Biemmezeta for their frames.
    – Batman
    Sep 5, 2017 at 19:44

enter image description hereenter image description here My frame is 1984 Palo alto biemazeta. Dove looks right...Columbus tubing..reinforce tube...after 85' they started making the tucked t bolt nut for brake calipers. I had too drill mine too fit ...trade e mails got pics of a repaint , new parts. Weighs in 19 lbs. Thanks CB

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