headset threading
01-24-07 | 02:42 PM
#1
Thread Starter
FalconLvr
Joined: Jun 2006
Posts: 1,433
Likes: 190
From: SW Virginia
Bikes: 62 Falcon, 58 Raleigh Lenton Gran Prix, 74 Raleigh Pro, 75 Raleigh Int, 75 Raleigh Comp, 76 Colnago Super, 75 Crescent, 80 Peugeot PX10, plus others too numerous to mention!
headset threading
OK, looking for the people well versed in headset threading. What is the rule regarding headset threading:
Can english threaded headsets work on italian threaded steerers? What about vice versa? I know the French steerers are actually smaller diameter tubes, but the italian and english steerers should be same diameter, just different threading. Thanks for any help on this! (Next weeks discussion, bottom brackets!). Ed
Can english threaded headsets work on italian threaded steerers? What about vice versa? I know the French steerers are actually smaller diameter tubes, but the italian and english steerers should be same diameter, just different threading. Thanks for any help on this! (Next weeks discussion, bottom brackets!). Ed
01-24-07 | 02:44 PM
#3
crotchety young dude
Joined: Jan 2005
Posts: 4,818
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From: SF, CA
Bikes: IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
English and Italian are, as far as I know, compatible.
01-24-07 | 03:01 PM
#4
hunter, gatherer
Joined: Feb 2005
Posts: 1,183
Likes: 2
english and italian are actually the same dimensions and pitch (1" x 24T v. 25.4mm x 24T, 1" = 25.4mm), but with a different yet very close thread angle..
they are regarded as interchangable, but it is not recommended to switch back and forth
french headsets are different pitches, not compatible
bottom brackets are all different dimensions and threading
they are regarded as interchangable, but it is not recommended to switch back and forth
french headsets are different pitches, not compatible
bottom brackets are all different dimensions and threading
01-24-07 | 03:03 PM
#5
Senior Member
Joined: Oct 2004
Posts: 2,947
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From: Absecon, NJ
Bikes: Puch Luzern, Puch Mistral SLE, Bianchi Pista, Motobecane Grand Touring, Austro-Daimler Ultima, Legnano, Raleigh MountainTour, Cannondale SM600
Yes, ISO headsets will work on Italian threads, not sure about the reverse. Scroll down about halfway on Sheldon's threading page for headset info:
https://www.sheldonbrown.com/gloss_ta-o.html#threaded
https://www.sheldonbrown.com/gloss_ta-o.html#threaded
01-24-07 | 03:39 PM
#6
Thread Starter
FalconLvr
Joined: Jun 2006
Posts: 1,433
Likes: 190
From: SW Virginia
Bikes: 62 Falcon, 58 Raleigh Lenton Gran Prix, 74 Raleigh Pro, 75 Raleigh Int, 75 Raleigh Comp, 76 Colnago Super, 75 Crescent, 80 Peugeot PX10, plus others too numerous to mention!
Thanks people!
