Chris King R45 - Rear Hub Bearing Preload Adjustment

loosen. Thread axle end into adjusting cone until it is snug.
Insert 5 mm hex keys into both ends of axle assembly.
Have a friend securely hold the hex key that is inserted into the main axle assembly.
With one hand still securing the adjusting cone, tighten the axle end to 110 in lbs. (12.4
Nm) (very tight). Please recheck torque when a torque wrench is available.
Check for excessive bearing drag by turning axle with fingers. If excessive drag is
detected, go back to step 3 to reset bearing preload.
Check for bearing-axle play by clamping hub or wheel into frame or truing stand.
If play is detected, go back to step 3 to reset bearing preload.
Rear hub bearing preload adjustment
If in a bike shop or workshop environment:
Remove axle skewer from hub.
Loosen 2.5mm hex bolt on adjusting clamp.
Turn adjusting clamp one full turn counter clockwise.
Tech Tip: if adjusting clamp is difficult to remove, first insert a 5mm hex key into
drive side axle end to keep axle stationary. Then insert a 2.5mm hex key into hole
on adjusting clamp adjacent to 2.5mm hex bolt. Use 2.5mm hex key as a lever to
unscrew adjusting clamp.
Secure “L”-shaped 5 mm hex key in vice with shorter end of “L” facing up
With non-driveside facing up, insert hub onto 5 mm hex key so that hub can sit
freely on vice. If vice is not available, place the hub or wheel onto a flat, firm surface
with the non-driveside facing up.
Push downward on the hubshell. This compresses the bearing spacer spring in
the driveshell and ensures proper bearing seating.
While maintaining firm downward pressure on the hubshell, tighten the adjusting
clamp onto axle until it stops against bearing. Do not overtighten.
Once adjusting clamp is in position, tighten adjusting clamp hex bolt to 10 inch-
pounds (1.1 Nm) using a 2.5mm hex key.
Check adjustment by attaching wheel to bicycle frame. Check for bearing play or
binding, and readjust adjusting clamp if needed.
If in the field:
If play is detected in the rear wheel during a ride, it can be quickly remedied with the
following steps. It is recommended to readjust the preload using the shop procedure
as soon as possible.
With the wheel installed in a frame, loosen 2.5mm hex bolt on adjusting clamp
Place the 2.5mm hex key into the hole adjacent to the bolt
Gently tighten the adjusting clamp using the hex key as a lever. Do not
overtighten
Tighten adjusting clamp hex bolt to 10 inch-pounds (1.1Nm) using the 2.5mm hex
key. Do not overtighten.
Check for bearing play or binding. Readjust the Adjusting Clamp if necessary.
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