Another day, another wheel build (and so on).
This is a continuation from the other day.
Rebuilding a rear wheel that was built with a DT R500 rim.
FH-R7070 32H all-black Campagnolo Crocs JIS spoke pattern.
The front wheel was built with comp spokes, but the rear wheel is Campagnolo.
The center was off.
A centering gauge ultimately picks up the thickness of the sticker, so
I'm checking it at a phase where there's no sticker on either side of the rim,
but it was off to a degree that made that meaningless.
Built it
back
up.
Semi-comp 46-spoke JIS pattern.
I'll do the lacing later.
DT rims come in two types: those where the sticker phases on left and right are aligned, and those where they're offset by 90°.
The former includes models like XR361, while the latter includes XR331, RR411, RR411db, and others.
When using a DT RR411 rim for rim brakes as an offset rear rim,
if you build it in the correct orientation for the rim shape,
when viewed from the freewheel side,
there's no sticker at the phase near the valve hole.
So when building its counterpart front wheel,
you align the sticker and valve hole relationship to match that orientation.
But with RR411db rims for disc brakes where only offset rims are available,
the front wheel always ends up facing the opposite direction.
↑When viewed from the non-freewheel side
This R500 rim also had a sticker phase offset of 90° between left and right,
so I aligned both front and rear wheels
so that when viewed from the right side,
there's no sticker directly below the valve hole.
Going back in time a bit, before the rebuild
it was oriented the opposite way.
Since the R500 isn't an offset rim,
it doesn't affect performance, but still.
This is a continuation from the other day.
Rebuilding a rear wheel that was built with a DT R500 rim.
FH-R7070 32H all-black Campagnolo Crocs JIS spoke pattern.
The front wheel was built with comp spokes, but the rear wheel is Campagnolo.
The center was off.
A centering gauge ultimately picks up the thickness of the sticker, so
I'm checking it at a phase where there's no sticker on either side of the rim,
but it was off to a degree that made that meaningless.
Built it
back
up.
Semi-comp 46-spoke JIS pattern.
I'll do the lacing later.
DT rims come in two types: those where the sticker phases on left and right are aligned, and those where they're offset by 90°.
The former includes models like XR361, while the latter includes XR331, RR411, RR411db, and others.
When using a DT RR411 rim for rim brakes as an offset rear rim,
if you build it in the correct orientation for the rim shape,
when viewed from the freewheel side,
there's no sticker at the phase near the valve hole.
So when building its counterpart front wheel,
you align the sticker and valve hole relationship to match that orientation.
But with RR411db rims for disc brakes where only offset rims are available,
the front wheel always ends up facing the opposite direction.
↑When viewed from the non-freewheel side
This R500 rim also had a sticker phase offset of 90° between left and right,
so I aligned both front and rear wheels
so that when viewed from the right side,
there's no sticker directly below the valve hole.
Going back in time a bit, before the rebuild
it was oriented the opposite way.
Since the R500 isn't an offset rim,
it doesn't affect performance, but still.