Originally Posted by
Harold74
Thanks for that. If you're willing, I'd welcome a check of my math:
11 SPEED WHEEL w/ 130 OLN
43.5 mm chain line - 39.0 mm cassette width / 2 = 24.0 mm distance from large cog to frame centerline. <-- I take this to be a measure of drive side spoke angle unless the cog to flange distance changes from hub to hub.
10 SPEED WHEEL w/ 126 OLN
43.5 mm chain line - 37.2 mm cassette width / 2 = 24.7 mm distance from large cog to CL.
This is what leads me to believe that the 10 speed w/ 126 OLN would be as strong as the 11 speed w/ 130 OLN. A trivial amount stronger actually.
Where've I gone wrong?
I don't have solid numbers in front of me, but the Shimano 10 speed and 11 speed cassettes actually have the back side dished in slightly, such that the biggest cog will overhang the hub flange somewhat. So it's not a straightforward calculation of large cog to center-line.