Another day working on wheels (and so on).
A customer brought in a ZIPP 303 rim wheel for me to work on.
The hub is a 7900, and the spokes are CX-RAY in a 4-4 Italian pattern lacing—something I built myself back in the day, but without any spoke ties.
Since the customer wants to upgrade to 11-speed, I'm rebuilding it with a 9000 rear hub.
All built.
The spokes are again CX-RAY on both sides, but this time I used a 4-6 lacing pattern.
I did add spoke ties, but before that I took some measurements comparing the various numbers between a 4-4 lacing and a 4-6 lacing with equal-length spokes on both sides—heh heh.
When I matched the spoke tension on the freewheel side to what it was before the rebuild, the non-freewheel side came out noticeably stiffer, so I'd say that counts as a win (at least without the spoke ties installed yet).
Still, I'm reminded how significant the dimensional difference really is between the 7900 and 9000 hubs.
A customer brought in a ZIPP 303 rim wheel for me to work on.
The hub is a 7900, and the spokes are CX-RAY in a 4-4 Italian pattern lacing—something I built myself back in the day, but without any spoke ties.
Since the customer wants to upgrade to 11-speed, I'm rebuilding it with a 9000 rear hub.
All built.
The spokes are again CX-RAY on both sides, but this time I used a 4-6 lacing pattern.
I did add spoke ties, but before that I took some measurements comparing the various numbers between a 4-4 lacing and a 4-6 lacing with equal-length spokes on both sides—heh heh.
When I matched the spoke tension on the freewheel side to what it was before the rebuild, the non-freewheel side came out noticeably stiffer, so I'd say that counts as a win (at least without the spoke ties installed yet).
Still, I'm reminded how significant the dimensional difference really is between the 7900 and 9000 hubs.