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while checking out campyoldy for some old campag parts (strangely enough!) i noticed this amongst his FAQ section
the first section is to show the jump in subject!
:-
Does same apply to headsets and fork columns?
I believe so. Italian thread is 25.4mm and English is 1”; again, both are 24 teeth per inch. The angle of English threads is 60deg. and continental 55deg. If the proposed screwed race will screw on by hand, not using a wrench, then it’s fine. This is bicycle equipment we are talking here not rocket engineering and when every part is not freely available, a compromise may be necessary after 20+ years.
French fork column is 25mm diameter and their pedal threads are 14mm which are completely out of step with everyone else-no change there then. Bottom bracket cups are exclusive to each nations intended shell, but I have known French cups fitting damaged threads in a British shell in an attempt to rescue the frame. Desperate remedies, needs must etc.
Do you think Mussolini’s invasion of Abyssinia in 1935 was ill advised?
Er...
~~~~~~~~~~~~
The following has no relevance to campyoldy but it's my site and I feel better for publishing my experience:
If your motor mower needs servicing, I took mine to Ashington Garden Machinery Ltd at the Garden Centre, Queen Anne Drive, Merley, Wimborne. The mower regularly spluttered to a halt after no more than 10 mins use which suggested to me, muck in the carb. At their first attempt, they fitted a new band brake cable and when that didnt work I returned it and this time they found - muck in the carb! They had the audacity to charge me again/not allow the first bill against the second. Needless to say I am unimpressed having spent a ton on a mower worth less than £50.
the first section is to show the jump in subject!
:-
Does same apply to headsets and fork columns?
I believe so. Italian thread is 25.4mm and English is 1”; again, both are 24 teeth per inch. The angle of English threads is 60deg. and continental 55deg. If the proposed screwed race will screw on by hand, not using a wrench, then it’s fine. This is bicycle equipment we are talking here not rocket engineering and when every part is not freely available, a compromise may be necessary after 20+ years.
French fork column is 25mm diameter and their pedal threads are 14mm which are completely out of step with everyone else-no change there then. Bottom bracket cups are exclusive to each nations intended shell, but I have known French cups fitting damaged threads in a British shell in an attempt to rescue the frame. Desperate remedies, needs must etc.
Do you think Mussolini’s invasion of Abyssinia in 1935 was ill advised?
Er...
~~~~~~~~~~~~
The following has no relevance to campyoldy but it's my site and I feel better for publishing my experience:
If your motor mower needs servicing, I took mine to Ashington Garden Machinery Ltd at the Garden Centre, Queen Anne Drive, Merley, Wimborne. The mower regularly spluttered to a halt after no more than 10 mins use which suggested to me, muck in the carb. At their first attempt, they fitted a new band brake cable and when that didnt work I returned it and this time they found - muck in the carb! They had the audacity to charge me again/not allow the first bill against the second. Needless to say I am unimpressed having spent a ton on a mower worth less than £50.
