Ivy: Rear Wheel Swap

Wanted to swap Ivy's rear wheel for the temporary one so I could put new spokes on it and true it.  Swapping the wheel's went without a hitch.  Took the tire, rim strip and tube from Ivy's and put it on the temp one (the one I've been practicing truing).  It actually fits a bit better, I think because the cushions aren't so thick.  May want to swap them out next time.  The new spokes look fantastic on the bike - you don't notice what a big difference they make until you compare them to the old ones.

Surprisingly, all the spokes came out without a problem, no cutting required.  Even many of the holes were already big enough to take the new spokes, though I still had to Dremel a few of them.  Only when I had it back upstairs and was lacing it did I realize I had drilled the wrong holes and had to redo it.

Almost pulled the bearings but then decided I had nothing to gain by pulling them now.  I'll just wait until I have new Nachi's to install.

Also found that there was a bad spoke in the new set (second set from the same eBay seller).  Not only did I get 19 inners and only 17 outers, the extra inner had its threads on the wrong end!  Makes me worry about ordering more sets from this guy, but then again, the first set was fine (except for the inconsistently sized nipples).  I had to use an old spoke from Viola's original to finish the lacing while I wait for the seller to send a replacement.  (the spokes I just took off from that wheel were actually a lot longer than 175mm)

Once I got to truing I got a bit worried.  From the start, this rim had a huge runout of about 7mm.  I thought it would be impossible to get that straight just from adjusting spokes.  The hop was pretty big at about 3-4mm.

With such large movement, the problem became that the dial gauge didn't have a smooth "track" to run on.  When checking hop, the side to side movement was so bad that it would move off the gauge.  And when checking runout, the hop made it so that the gauge was moving all the way out to the edge of the rim.

But I just stuck with it, and didn't actually do anything special, just followed the procedure.  I actually took care of some of the big runout first, enough to be able to then get the gauge on track for the hop.  Even though you're supposed to start with hop first, maybe you just need to start with whichever is worse.

Took some time, but amazingly, I was able to get the runout down to 0.5mm and the hop to an acceptable 1mm (same as the other wheel).  Pleasantly surprised and somewhat impressed with myself!