Another day, more wheels (and so on).
A customer brought in a rear wheel that was built with Duke rims
—or rather, one that we built here at the shop (→here).
There was an issue with this Novatech rear hub,
so I'm replacing the hub.
The details would make this post too long, so I'll cover that in a separate entry.
All rebuilt.
The original wheel was built with straight spokes
in a black half CX Sprint 4-4 pattern,
but after rebuilding, it's now 28H with a DT 350 hub,
black half Comp 4-6 pattern.
I'll lace it up later—or actually,
by the time I'm writing this, I've already done it.
The customer's drivetrain is SRAM 12-speed, but
28H XDR rear hubs are pretty hard to come by.
Shimano has the FH-RS770, but
Tni's Duro hub only comes with a Shimano freebody,
and while Revodisc hubs do come in XDR specs,
they're only available in 24H, so they won't work.
The Duro hub and Revodisc hub freebodies aren't compatible,
and there's no way to make a matching hub by swapping parts.
Chris King and others do make compatible options,
but my wallet took a much heavier hit there, so
I went with the DT 350.
↑This was taken when I photographed just the hub before building the wheel.
Whether it's a quick-release hub or thru-axle hub,
the overlock nut dimension is never narrower than the spec dimension,
and it's often slightly wider, but
on this hub, where the spec is 142mm,
it was around 143.3mm.
Even if the distance from the hub center to the disc rotor mounting surface
were designed identically,
I think issues like disc rotor rub can occur when you swap to a rear hub
from a different manufacturer partly because of
variations like this.
The thin step at the thru-axle end doesn't slip in quite as easily
as the notch at a quick-release end, so setting the wheel with the chain
on that thin ledge while getting the disc rotor to pass between the pads
has become extremely difficult lately, especially since
the rear derailleur is single-tension in most cases these days.
And now we have to factor in hub dimension positive tolerances on top of that.
A customer brought in a rear wheel that was built with Duke rims
—or rather, one that we built here at the shop (→here).
There was an issue with this Novatech rear hub,
so I'm replacing the hub.
The details would make this post too long, so I'll cover that in a separate entry.
All rebuilt.
The original wheel was built with straight spokes
in a black half CX Sprint 4-4 pattern,
but after rebuilding, it's now 28H with a DT 350 hub,
black half Comp 4-6 pattern.
I'll lace it up later—or actually,
by the time I'm writing this, I've already done it.
The customer's drivetrain is SRAM 12-speed, but
28H XDR rear hubs are pretty hard to come by.
Shimano has the FH-RS770, but
Tni's Duro hub only comes with a Shimano freebody,
and while Revodisc hubs do come in XDR specs,
they're only available in 24H, so they won't work.
The Duro hub and Revodisc hub freebodies aren't compatible,
and there's no way to make a matching hub by swapping parts.
Chris King and others do make compatible options,
but my wallet took a much heavier hit there, so
I went with the DT 350.
↑This was taken when I photographed just the hub before building the wheel.
Whether it's a quick-release hub or thru-axle hub,
the overlock nut dimension is never narrower than the spec dimension,
and it's often slightly wider, but
on this hub, where the spec is 142mm,
it was around 143.3mm.
Even if the distance from the hub center to the disc rotor mounting surface
were designed identically,
I think issues like disc rotor rub can occur when you swap to a rear hub
from a different manufacturer partly because of
variations like this.
The thin step at the thru-axle end doesn't slip in quite as easily
as the notch at a quick-release end, so setting the wheel with the chain
on that thin ledge while getting the disc rotor to pass between the pads
has become extremely difficult lately, especially since
the rear derailleur is single-tension in most cases these days.
And now we have to factor in hub dimension positive tolerances on top of that.