Guinessisgoodforyou
rBotM Winner
Usually 2BA tapping drill, 4.00mm so close to M5 which is 4.2mm.
Last edited:
Yellow Hobbs winter beater of distinction (WBOD)
- Thread starter Jonny69
- Start date
Jonny69
Senior Retro Guru
Good intel! I’m not well up on my BA threads. Despite decades of doing old bikes and cars, I only really know metric, UNC and UNF!
Edit: I should read this: https://en.m.wikipedia.org/wiki/British_Association_screw_threads
Guinessisgoodforyou
rBotM Winner
fiveSixteenths
Senior Retro Guru
Coming in here with all your chart and datas…
Jonny69
Senior Retro Guru
Slight annoyance this morning that my rear mudguard mount only lasted one commute, but nothing a couple of cable ties couldn't temporarily fix:
My commute is pretty rough in patches because the roads are in dreadful condition so I'll obviously need to beef this up a bit. I'll probably re-make it more like the front one, where it's rivetted onto the guard itself but I'll use screws. Then it'll mean I'll be able to take it off and replace it.
Also, randomly, helped a colleague with a puncture yesterday and three ball bearings fell out my tool roll. Quick check with the Vernier told me they were just under 4mm, which makes them 5/32" headset balls:
I remember I was seemingly one ball short when I put the headset back together but didn't give it much thought because you don't have to run the bearing races completely full. Three short might be not be helping the notchiness in my headset though.
My commute is pretty rough in patches because the roads are in dreadful condition so I'll obviously need to beef this up a bit. I'll probably re-make it more like the front one, where it's rivetted onto the guard itself but I'll use screws. Then it'll mean I'll be able to take it off and replace it.
Also, randomly, helped a colleague with a puncture yesterday and three ball bearings fell out my tool roll. Quick check with the Vernier told me they were just under 4mm, which makes them 5/32" headset balls:
I remember I was seemingly one ball short when I put the headset back together but didn't give it much thought because you don't have to run the bearing races completely full. Three short might be not be helping the notchiness in my headset though.
