Each 2-piece wheel adapter has two separate pieces. Unscrew the black bolts and
you will have the inner piece (w/o studs) and the outer piece (with studs).
1) Installing 1st Piece: Put the inner piece adapter to the hub. Use open-end
lug nuts with the matching thread size as the hub studs to secure. Make sure the
open-end lug nuts sit flush inside the holes of the adapters. If the open-end
lug nuts stick out, find low profile ones.
2) Installing 2nd Piece: Put the outer piece adapter to the inner piece, using
the provided black bolts. Torque them to 50-55 ft-lb. (It is highly recommended
to use ThreadLocker or Loctite glue or similar products for extra strength and
reducing vibration loosening. Apply the gel to the leading 5 to 6 threads of the
black bolts before bolting them on)
3) Installing rims: Put the wheels onto the adapters. Use the lug nuts with the
same thread size as the adapter studs to secure the rims.
During installation, inspect the mounting surface between the adapter inner
piece and vehicle disc, the inner piece and the outer piece, wheels and the
adapter outer piece. Remove any retaining clips and dirt. Make sure each
mounting surface is flat and clean.
Make sure the hub studs coming through the inner piece are not sticking against
the outer piece of the adapter. If so, cut the hub studs short.
Torque recommendation for both the open-end lug nuts and rims’ lug nuts
65 ft-lb for 7/16” studs
80 ft-lb for ˝” studs
90 ft-lb for 12mm studs
95 ft-lb for 14mm studs
100 ft-lb for 9/16” studs
Re-torque after traveling the first 50-100 miles. As the wheels
are “breaking in”, they may compress slightly, allowing their lugs to lose some
of their torque.
Check all lug nuts and bolts every 3000-5000 miles. When doing oil change or
rotate tires, it is the best time to check the installed adapters.