All fine, but the fact remains that an eight speed screw on puts the drive side bearing miles away from the dropout and, as such, puts the axle under enormous strain. In terms of design and practicality it's frankly awful.
I'm even beginning to wonder if many screw on hubs could be offset far enough to take an eight speed on a 130mm OLN. The only road (-ish) bike I can recall owning with an eight speed screw on was a tourer spaced at 135mm and that went to a cassette hub after I broke the second axle.
I used to ride a set of wheels built on Sachs New Success hubs with a 130mm screw-on rear. Used them for road and cross for about 5 years with no bother at all (I had to change one cartridge bearing in the front hub, but that was about it), but foolishly sold them thinking that replacement freewheels would be unobtainable once SRAM had gobbled up Sachs (not realising that NOS would still be knocking around for a while and Zenith would start doing off-the-shelf ones in time) and went for cassette hubs instead. Wish I'd kept them!
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