Sir Neil d'Menture
Retro Guru
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If you do this sort of thing regularly a 1" 24tpi die costs less than £20.
Threaded 1 1/8th TPI differences.
- Thread starter Spankyfart
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Great for this 1-1/8" headset ;-)
Sir Neil d'Menture
Retro Guru
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Sorry, I was really just pointing our how cheap a die can be and then you have always to hand. 
Sir Neil d'Menture
Retro Guru
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Spankyfart
Marin Fan
I always borrow BB "cleaners" for my bikes from my LBS.
I'll ask if he has those for threaded steerers as well.
I'll ask if he has those for threaded steerers as well.
Spankyfart
Marin Fan
Can't go wrong if they are called supersuperstore.
misterfixit
Old School Hero
Imperial cycle threads are of a special form. Governed by BS811:1950 They are specified as BSCy or BSC on the dies.
https://allcivilstandard.com/wp-content/uploads/2019/02/BS-00811-1950-1999.pdf
The form and thread calculations are similar to Whitworth, but on a different basis. Standard unified imperial threads use a different form standard which can trace back to FED standard H28
https://allcivilstandard.com/wp-content/uploads/2019/02/BS-00811-1950-1999.pdf
The form and thread calculations are similar to Whitworth, but on a different basis. Standard unified imperial threads use a different form standard which can trace back to FED standard H28
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I know, just a light hearted jest.Sorry, I was really just pointing our how cheap a die can be and then you have always to hand.
Great things, not got myself a set as I use old steel hearses if I can find them
Same for bottom brackets, good old Shimano steel cups, I prefer the cartridge BB stel cups to the older cuo/cone as the tools is easier to use.
misterfixit
Old School Hero
As mentioned that's a 1-24 Unified thread. A cycle thread is a different form. They are not intermixable.
