Another day of wheel work (and so on...).
The matching rear wheel to the front wheel from the other day—
the Roval CL50's rear wheel needs to be rebuilt.
Just like the front wheel, the brass nipples were corroded.
After disassembling the wheel, on the freewheel side I temporarily assembled 4 spokes out of the final 8-cross pattern, skipping every other one.
The angle at the final cross is sharp, and as a tangent lacing pattern
it's quite close to radial lacing—
When you tense the hub forward in the direction of deformation during pedaling,
the spokes deform like this.
With double the number of spokes and tension applied,
it's just hard to detect, but this kind of stress is definitely there.
With pure radial lacing, the deformation would be much more severe.
Someone might think, "But you're doing 4-cross lacing with a sharper
final cross angle on the freewheel side compared to 6-cross,"
but both sides in that pattern use tangential lacing,
and with asymmetric builds I'm prioritizing increasing the n-value
on the non-freewheel side,
achieving something like what Mavic calls Isopulse
within what's possible with hand-built wheels.
The high spoke count side in 2:1 builds should have
the final cross angle set as obtuse as possible.
Looking at the 24H and 21H high spoke sides on the Bora WTO from the previous article,
Campagnolo clearly understands this principle well.
It's no accident.
I've written this many times, but if the final cross angle
were truly unimportant to rear wheel drive-time distortion—
just a minor detail solved entirely by spoke tension—
then the rear wheel should be radial laced on both sides.
From experience, at least with steel spokes at 36H or fewer,
I know that won't work.
Got it built.
Black half CX Sprint reverse mixed diameter lacing with red aluminum nipples.
I've already laced it,
but haven't in this image.
By the way, when rebuilding the wheel I completely disassembled it, which me・・・
(Slightly eating my words...) My apologies for the wait!
Please take a look at these images!
It's the front rim!
It's the rear rim!
↑ Stop it!
The matching rear wheel to the front wheel from the other day—
the Roval CL50's rear wheel needs to be rebuilt.
Just like the front wheel, the brass nipples were corroded.
After disassembling the wheel, on the freewheel side I temporarily assembled 4 spokes out of the final 8-cross pattern, skipping every other one.
The angle at the final cross is sharp, and as a tangent lacing pattern
it's quite close to radial lacing—
When you tense the hub forward in the direction of deformation during pedaling,
the spokes deform like this.
With double the number of spokes and tension applied,
it's just hard to detect, but this kind of stress is definitely there.
With pure radial lacing, the deformation would be much more severe.
Someone might think, "But you're doing 4-cross lacing with a sharper
final cross angle on the freewheel side compared to 6-cross,"
but both sides in that pattern use tangential lacing,
and with asymmetric builds I'm prioritizing increasing the n-value
on the non-freewheel side,
achieving something like what Mavic calls Isopulse
within what's possible with hand-built wheels.
The high spoke count side in 2:1 builds should have
the final cross angle set as obtuse as possible.
Looking at the 24H and 21H high spoke sides on the Bora WTO from the previous article,
Campagnolo clearly understands this principle well.
It's no accident.
I've written this many times, but if the final cross angle
were truly unimportant to rear wheel drive-time distortion—
just a minor detail solved entirely by spoke tension—
then the rear wheel should be radial laced on both sides.
From experience, at least with steel spokes at 36H or fewer,
I know that won't work.
Got it built.
Black half CX Sprint reverse mixed diameter lacing with red aluminum nipples.
I've already laced it,
but haven't in this image.
By the way, when rebuilding the wheel I completely disassembled it, which me・・・
(Slightly eating my words...) My apologies for the wait!
Please take a look at these images!
It's the front rim!
It's the rear rim!
↑ Stop it!