Another day at the workshop (and so on).
A customer brought me an Eurus rear wheel.
It has a DT quick-release skewer, but
leaving aside the cup and cone hub bearing,
there's a risk of damage to the cartridge freebody bearing.
Though this time it turned out fine.
The rim side is dented, so it needed to be replaced.
The opening image is shot from the left side,
but the right side has the EURUS sticker peeled off.
Or maybe it peeled off messily, so they removed it.
There's a sunburn mark in the shape of the letters,
and the image above shows the UR part of EURUS.
And there's one more sticker peeled off on both sides.
The 2WAY-FIT sticker.
This rim is 2WAY-FIT spec,
but the customer wants a WO rim for the replacement.
Since Eurus from this era shares the rim with Shamal Ultra,
it's not a "unique specification," so the spare rim doesn't have stickers on it.
And apparently, stickers aren't necessary either.
The 2WAY-FIT rim has a valve bush on the inside of the rim.
The rim arrived.
Good chance to review the basics.
In the image above, both are on the outer circumference of the valve hole
Left is WO, right is 2WAY-FIT.
With WO rims, nipples are added from the outer circumference,
but with 2WAY-FIT rims, due to tubeless valve requirements,
the outer hole can't be made larger.
This is the inner circumference side of the valve hole,
and 2WAY-FIT rims have nipples added from the inner circumference.
After the wheel is built, the valve bush is the part that adjusts the hole diameter
to match the valve hole standard diameter.
Got it built.
Compared to WO rims, 2WAY-FIT rims
have more surface area due to the center depression of the bead seat and the hump,
and are generally heavier than WO rims.
This rim is a narrow rim, but in the case of the wide rim Shamal Ultra,
both specifications have a rear rim height of 30mm.
In the narrow rim era, there was subtle differentiation in rear rim height—
WO rim at 30mm, tubular rim at 28.5mm,
and 2WAY-FIT rim at 28mm.
Looking at just rim height, the WO rim should be at a weight disadvantage,
but with tubeless rim specifications,
is that an even more disadvantageous factor weight-wise?
As I predicted, the 2WAY-FIT rim turned out to be heavier.
I won't reveal the specific weight here though.
↑Ugh, what a jerk
Thank you for your patience! Please check out this image!
A narrow 2WAY-FIT rim!
A narrow WO rim!
↑Knock it off!
A customer brought me an Eurus rear wheel.
It has a DT quick-release skewer, but
leaving aside the cup and cone hub bearing,
there's a risk of damage to the cartridge freebody bearing.
Though this time it turned out fine.
The rim side is dented, so it needed to be replaced.
The opening image is shot from the left side,
but the right side has the EURUS sticker peeled off.
Or maybe it peeled off messily, so they removed it.
There's a sunburn mark in the shape of the letters,
and the image above shows the UR part of EURUS.
And there's one more sticker peeled off on both sides.
The 2WAY-FIT sticker.
This rim is 2WAY-FIT spec,
but the customer wants a WO rim for the replacement.
Since Eurus from this era shares the rim with Shamal Ultra,
it's not a "unique specification," so the spare rim doesn't have stickers on it.
And apparently, stickers aren't necessary either.
The 2WAY-FIT rim has a valve bush on the inside of the rim.
The rim arrived.
Good chance to review the basics.
In the image above, both are on the outer circumference of the valve hole
Left is WO, right is 2WAY-FIT.
With WO rims, nipples are added from the outer circumference,
but with 2WAY-FIT rims, due to tubeless valve requirements,
the outer hole can't be made larger.
This is the inner circumference side of the valve hole,
and 2WAY-FIT rims have nipples added from the inner circumference.
After the wheel is built, the valve bush is the part that adjusts the hole diameter
to match the valve hole standard diameter.
Got it built.
Compared to WO rims, 2WAY-FIT rims
have more surface area due to the center depression of the bead seat and the hump,
and are generally heavier than WO rims.
This rim is a narrow rim, but in the case of the wide rim Shamal Ultra,
both specifications have a rear rim height of 30mm.
In the narrow rim era, there was subtle differentiation in rear rim height—
WO rim at 30mm, tubular rim at 28.5mm,
and 2WAY-FIT rim at 28mm.
Looking at just rim height, the WO rim should be at a weight disadvantage,
but with tubeless rim specifications,
is that an even more disadvantageous factor weight-wise?
As I predicted, the 2WAY-FIT rim turned out to be heavier.
I won't reveal the specific weight here though.
↑Ugh, what a jerk
Thank you for your patience! Please check out this image!
A narrow 2WAY-FIT rim!
A narrow WO rim!
↑Knock it off!