All disks are made as hump disks. Hump is a ring-shaped protrusion on the rim landing shelf, which prevents the tubeless tire from being squeezed out of the disk on sharp turns.
Note: Wheel bolts for steel and light metal rims are the same length. The tightening torque for all wheel bolts is 90 Nm.
(Original posted on the website: opelbook)

Visitor comments