Another day with wheels (and so on).
A customer dropped off a front wheel built with a DT R500db rim.
The differences from the RR series like RR411db are:
・The rim seam is a sleeve joint rather than welded
・Squorx nipples and their dedicated washers don't come with the rim and don't necessarily need to be used
・Despite being a disc brake rim, it's not an offset rim
・Currently, Japanese distributors stock the RR series, but not the R series
and so on.
The hub is a Shimano 105 disc hub HB-R7070 32H, all black Campagnolo "JIS lacing".
It's not reverse Italian lacing.
Well, whether it's JIS or reverse Italian lacing, the lacing pattern on the rotor flange side is the same anyway, so
some American-made wheels are built with "disc hubs both front and rear in JIS lacing."
Black spokes but silver brass nipples, but that's fine.
Around the rim holes
there are tool marks.
What the heck is this?
Well, since I'm taking it apart anyway, it doesn't matter, but
there was some centering deviation.
Tubeless-ready rim with stretch band type rim tape, so
the tape gets pulled into the center channel and shifts to one side, but
that shifting goes right or left inconsistently.
The spoke lengths alternate between long (←this looks about right) and
short, so I thought it might be lazy assembly with the same length on both sides, but
they actually did vary the lengths.
Going back in the timeline, at the location before and after the final spoke crossing in the image,
the spoke deflection has scraped away the paint.
↑here
When you squeeze it, it looks like this.
So, the customer wanted a rebuild on this rather disappointing wheel.
Built it.
HB-R7070 32H, half-CX sprint 64 reverse Italian lacing
Basic blue nipples, gold nipples only on both sides of the valve.
I'll do the truing later.
A customer dropped off a front wheel built with a DT R500db rim.
The differences from the RR series like RR411db are:
・The rim seam is a sleeve joint rather than welded
・Squorx nipples and their dedicated washers don't come with the rim and don't necessarily need to be used
・Despite being a disc brake rim, it's not an offset rim
・Currently, Japanese distributors stock the RR series, but not the R series
and so on.
The hub is a Shimano 105 disc hub HB-R7070 32H, all black Campagnolo "JIS lacing".
It's not reverse Italian lacing.
Well, whether it's JIS or reverse Italian lacing, the lacing pattern on the rotor flange side is the same anyway, so
some American-made wheels are built with "disc hubs both front and rear in JIS lacing."
Black spokes but silver brass nipples, but that's fine.
Around the rim holes
there are tool marks.
What the heck is this?
Well, since I'm taking it apart anyway, it doesn't matter, but
there was some centering deviation.
Tubeless-ready rim with stretch band type rim tape, so
the tape gets pulled into the center channel and shifts to one side, but
that shifting goes right or left inconsistently.
The spoke lengths alternate between long (←this looks about right) and
short, so I thought it might be lazy assembly with the same length on both sides, but
they actually did vary the lengths.
Going back in the timeline, at the location before and after the final spoke crossing in the image,
the spoke deflection has scraped away the paint.
↑here
When you squeeze it, it looks like this.
So, the customer wanted a rebuild on this rather disappointing wheel.
Built it.
HB-R7070 32H, half-CX sprint 64 reverse Italian lacing
Basic blue nipples, gold nipples only on both sides of the valve.
I'll do the truing later.