View Single Post
Old 05-13-21, 12:21 AM
Crawlin' up, flyin' down
bikingshearer's Avatar
Join Date: Jan 2006
Location: Democratic Peoples' Republic of Berkeley
Posts: 4,233

Bikes: 1967 Paramount, 1982-ish Ron Cooper,1978 Eisentraut "A," mid-1960s Cinelli Speciale Corsa, 1961 Bianchi Competizione (an Eroica bike), 1994 Trek 520, 199? Burley Bossa Nova, early-1970s Cinelli Speciale Corsa (also an Eroica bike)

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 365 Post(s)
Liked 391 Times in 207 Posts
74mm bottom bracket shells were used on some late-1950s/early-1960s Italian frames. I have a 1961 Bianchi Competizione with one. I have not personally seen any other frames with a 74mm BB, although I hear that some Cinellis had them (exactly the sort of quirky thing Cino Cinelli would go with). I have no idea what other brands might have used them, but in any event, this iteration did not last long.

These bottom brackets took 3/16" bearings instead of 1/4". I'm sure there are some Italian threaded thin-wall cups for 3/16th, but I tried and couldn't find any. I ultimately gave up trying to find them and put a Phil Wood in mine.
"I'm in shape -- round is a shape." Andy Rooney

Last edited by bikingshearer; 05-13-21 at 10:54 AM.
bikingshearer is offline