A customer brought in a Crossmax for servicing.


It's a wheel for V-brakes with a CD ceramic-treated brake zone.
Mavic's XC rim X517 from that era and its successor XC717
are similar to the Open Pro road rim but with a wider rim width
and a smaller rim diameter, resulting in roughly the same weight.
This Crossmax is also about the same weight as the contemporary Ksyrium SL.
The rear wheel spoke tension was a bit loose, so I tightened it up slightly.
Beyond that, I just did a standard truing job.
The Ksyrium rear hub uses a 6903 bearing (30mm outer diameter) on the non-drive side—
which is a bit large for a hub bearing—but
recent Ksyrium models use a 6901 (24mm outer diameter).
The rim flange area size on the rear hub hasn't changed from the old days,
so the current rear hub's non-drive side looks oddly small
relative to the internal space.
The 6901 is also the size used on both sides of the Ksyrium front hub,
but this Crossmax has 6903 bearings on both sides of the front hub.
And as usual, it has contact seals,
so it's overspec'd to the point of being incredibly durable for most people.
It hasn't been used off-road in recent years,
but even after nearly ten years of use, the bearings are virtually untouched.
There's a tendency for people to casually replace Mavic bearings saying they're "stiff to turn,"
but I think the fact that they're doing exactly what the manufacturer intended
deserves more credit than it gets.


It's a wheel for V-brakes with a CD ceramic-treated brake zone.
Mavic's XC rim X517 from that era and its successor XC717
are similar to the Open Pro road rim but with a wider rim width
and a smaller rim diameter, resulting in roughly the same weight.
This Crossmax is also about the same weight as the contemporary Ksyrium SL.
The rear wheel spoke tension was a bit loose, so I tightened it up slightly.
Beyond that, I just did a standard truing job.
The Ksyrium rear hub uses a 6903 bearing (30mm outer diameter) on the non-drive side—
which is a bit large for a hub bearing—but
recent Ksyrium models use a 6901 (24mm outer diameter).
The rim flange area size on the rear hub hasn't changed from the old days,
so the current rear hub's non-drive side looks oddly small
relative to the internal space.
The 6901 is also the size used on both sides of the Ksyrium front hub,
but this Crossmax has 6903 bearings on both sides of the front hub.
And as usual, it has contact seals,
so it's overspec'd to the point of being incredibly durable for most people.
It hasn't been used off-road in recent years,
but even after nearly ten years of use, the bearings are virtually untouched.
There's a tendency for people to casually replace Mavic bearings saying they're "stiff to turn,"
but I think the fact that they're doing exactly what the manufacturer intended
deserves more credit than it gets.