Mid-1980's De Rosa BB thread?
#1
Newbie
Thread Starter
Join Date: Dec 2005
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Mid-1980's De Rosa BB thread?
Hi, Im selling an old De Rosa, purchased in 1986 if I remember right. One of the bidders wants to know whether it's got English or Italian BB threading. Can anybody help me out? I pulled the cranks but there's nothing on the BB to indicate which kind it is, and I don't have the proper tools to get the fixed cup off to see which way it's threaded. Your expert help would be appreciated!
#2
Senior Member
Join Date: Jul 2007
Location: Lancaster County, PA
Posts: 5,060
Bikes: '39 Hobbs, '58 Marastoni, '73 Italian custom, '75 Wizard, '76 Wilier, '78 Tom Kellogg, '79 Colnago Super, '79 Sachs, '81 Masi Prestige, '82 Cuevas, '83 Picchio Special, '84 Murray-Serotta, '85 Trek 170, '89 Bianchi, '90 Bill Holland, '94 Grandis
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
Measure the shell. If its 70mm it's Italian. If it's 68mm it's English. I'd bet all my bikes it's Italian.
#3
Senior Member
Join Date: Dec 2001
Location: n.w. superdrome
Posts: 17,688
Bikes: 1 trek, serotta, rih, de Reus, Pogliaghi and finally a Zieleman! and got a DeRosa
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Likes: 0
Liked 9 Times
in
9 Posts
Is there some marking on either the fixed or adjustable cup, i.e. 1 x 24 or similiar?
if so we can let you know what you've got.
Off hand I'd say it's probably an Italian thread, of course I could be completely wrong,
wouldn't be the first time.
Marty
if so we can let you know what you've got.
Off hand I'd say it's probably an Italian thread, of course I could be completely wrong,
wouldn't be the first time.
Marty
__________________
Sono pił lento di quel che sembra.
Odio la gente, tutti.
Want to upgrade your membership? Click Here.
Sono pił lento di quel che sembra.
Odio la gente, tutti.
Want to upgrade your membership? Click Here.
#4
Senior Member
Join Date: Nov 2006
Location: TORONTO , ONT , CA
Posts: 813
Bikes: '86 AMBROSI / C RECORD. PINARELLO MONTELLO / FRAME, FORK.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#5
Senior Member
Join Date: Jul 2007
Location: Lancaster County, PA
Posts: 5,060
Bikes: '39 Hobbs, '58 Marastoni, '73 Italian custom, '75 Wizard, '76 Wilier, '78 Tom Kellogg, '79 Colnago Super, '79 Sachs, '81 Masi Prestige, '82 Cuevas, '83 Picchio Special, '84 Murray-Serotta, '85 Trek 170, '89 Bianchi, '90 Bill Holland, '94 Grandis
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
Italian bikes are still 70mm shell width and Italian threaded as standard. For a bike of that era made by Ugo -one of the strongest proponents of "Tutto Italiano" - it's pretty much a slam dunk. I'm not worried about my bikes.
#6
Senior Member
Join Date: Jul 2007
Location: Lancaster County, PA
Posts: 5,060
Bikes: '39 Hobbs, '58 Marastoni, '73 Italian custom, '75 Wizard, '76 Wilier, '78 Tom Kellogg, '79 Colnago Super, '79 Sachs, '81 Masi Prestige, '82 Cuevas, '83 Picchio Special, '84 Murray-Serotta, '85 Trek 170, '89 Bianchi, '90 Bill Holland, '94 Grandis
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
Italian threading is 36 x 24, BTW.
#7
Senior Member
Join Date: Oct 2007
Location: SoCal
Posts: 1,169
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Hi, Im selling an old De Rosa, purchased in 1986 if I remember right. One of the bidders wants to know whether it's got English or Italian BB threading. Can anybody help me out? I pulled the cranks but there's nothing on the BB to indicate which kind it is, and I don't have the proper tools to get the fixed cup off to see which way it's threaded. Your expert help would be appreciated!
Pinarello probably would have had a coronary if they knew that I had used Shimano Dura-Ace on my '87 Montello back then. My shop made me pronounce it "DUR-AHHHCHEE" when ever I would come in.
#9
Newbie
Thread Starter
Join Date: Dec 2005
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks for the replies.. there's no markings on the cups. I got out my tape measure and the width is 70mm. Picchio, you get to keep your bikes! Grazie.
#10
feros ferio
Join Date: Jul 2000
Location: www.ci.encinitas.ca.us
Posts: 21,765
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
Mentioned: 44 Post(s)
Tagged: 0 Thread(s)
Quoted: 1384 Post(s)
Liked 1,294 Times
in
819 Posts
Easy test: unscrew the BB lockring and try to thread on a known English or French/Swiss unit. If it will not even go properly over the outer face of the adjustable cup, you are trying to put a 35mm = 1.375" ring on a 36mm (Italian) cup.
Editorial: The only good thing about Italian or French BB threading is that one can microadjust the chainline by installing adjustable cups on both sides.
Editorial: The only good thing about Italian or French BB threading is that one can microadjust the chainline by installing adjustable cups on both sides.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
#11
Senior Member
Join Date: Jun 2006
Location: NW Burbs, Chicago
Posts: 12,156
Mentioned: 200 Post(s)
Tagged: 0 Thread(s)
Quoted: 2993 Post(s)
Liked 3,711 Times
in
1,393 Posts
Italian will have right hand threads on both sides, English will have left hand threads on the drive side.
To test, if either of the cups thread into both sides of the BB, it is Italian, if either of the cups can thread into only one side of the BB, it is English.
To test, if either of the cups thread into both sides of the BB, it is Italian, if either of the cups can thread into only one side of the BB, it is English.
#13
Permanent Refugee .......
Join Date: Dec 2005
Location: Okanagan Valley, BC.
Posts: 1,256
Bikes: Steel
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Ain't no way De Rosa ever put an English threaded BB into one of his bikes.
#15
Senior Member
Join Date: Jul 2007
Location: Lancaster County, PA
Posts: 5,060
Bikes: '39 Hobbs, '58 Marastoni, '73 Italian custom, '75 Wizard, '76 Wilier, '78 Tom Kellogg, '79 Colnago Super, '79 Sachs, '81 Masi Prestige, '82 Cuevas, '83 Picchio Special, '84 Murray-Serotta, '85 Trek 170, '89 Bianchi, '90 Bill Holland, '94 Grandis
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
#16
Stop reading my posts!
Join Date: Sep 2004
Posts: 12,959
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 1422 Post(s)
Liked 1,038 Times
in
769 Posts
That's what I'd guess: Mtn. bikes would "properly" use JIS standards, so a BSC thread BB. But just to keep us on our toes, I serviced a late '90s Bianchi road bike, made in Italy with Reparto Corsa decals all over it, and it had a BSC BB...kind or surprised me, it was a Campy sealed unit, too.
#17
park ranger
Join Date: Aug 2006
Location: mars
Posts: 1,794
Bikes: recumbents
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
usually i just look on the BB cup. it almost always has the threading written on it.
1.37x24 is english, 36x24 is italian but since it's not written on there just measure the shell width. it's probably 70mm.
1.37x24 is english, 36x24 is italian but since it's not written on there just measure the shell width. it's probably 70mm.
#18
Senior Member
Join Date: Jul 2007
Location: Lancaster County, PA
Posts: 5,060
Bikes: '39 Hobbs, '58 Marastoni, '73 Italian custom, '75 Wizard, '76 Wilier, '78 Tom Kellogg, '79 Colnago Super, '79 Sachs, '81 Masi Prestige, '82 Cuevas, '83 Picchio Special, '84 Murray-Serotta, '85 Trek 170, '89 Bianchi, '90 Bill Holland, '94 Grandis
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
Uh, did you actually bother to read any of this thread, or just jump right on in there?
#19
Senior Member
Join Date: Oct 2007
Location: SoCal
Posts: 1,169
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Been my experience here that most people only seem to read the first post then jump right in with out reading further to se if their solution has already been mentioned.
I too after looking at my old shimano italian BB was going to post the thread size but poster had already stated there was nothing on the outside of the cups. Seems unusal but he is the one looking at it.