Contrary to what's been posted and speculated about patents, the Sram and Shimano lockring patterns are the same. There is no patented design or design registration of this feature.
The Shimano freehub patent was poorly written, and all they were able to protect was the method of fitting the...
Cannondale coda version of the dia-compe 986. As others have said, the spring parks in the tension piece only. Add tension with a cone spanner and then nip up. Useful brakes to use on frames and forks (like Manitou) which only have one spring hole if you're having trouble getting the brakes...
Imperial mate, not metric. I can't recall if it's 1/16" of an inch (I think so, which is basically 1.6mm), but it could be sixty-thou, 0.060" (which is a shade under 1.5mm).
Hopefully a previous owner hasn't rounded the socket out with the wrong sized key....
I think supply can't meet demand on this one. BITD, everyone wanted 135 or 150. Even 120 wasn't cool for racers but was sometimes needed to make a machine fit.
90 and 105 sold in such small numbers you will certainly have to dig deep for it if one came up. I'd certainly expect £250+ for a very...
New ~30-year old parts at the original 1990's RRP is pretty damn reasonable.
Take a look:
https://www.kleinspainted.com/--one-stop-klein-shop.html
https://bicyclist.cc/?s=ringle&post_type=product
Extremely, extremely lovely.
And as far as I've found, Onza pedals have served me fine for 30-years and are easy to rebuild. And they have been very kind to my damaged knees (which are also very 90's style fragile and crack-tastic).