The grease in your hub will provide optimum performance between 30°-110°F. The bearings
and RingDrive
engagement mechanism come lubricated with a specially formulated low shear
grease. To maintain maximum performance in extreme temperatures see appropriate section
under “Lubrication”, pg. 5.
Break-In
Once your new hub is placed in service, some settling may occur. Check adjustment by clamping
wheel into frame with a quick-release skewer or with Chris King FunBolts. Ride for 5-10 minutes, check
for play or binding, and readjust if necessary. Recheck after the first 1-5 hours of riding. Check cog
lock ring on rear hubs after the first 20 hours of use, and tighten if necessary. Continue monitoring
for the first 60 hours of use.
During the first 60 hours of use, above average amounts of drag may be noticed. This is
normal as the seals break in, and will soon diminish. If this causes chain sag in the rear while
back-pedaling, increase the B-tension (cage tension) on the rear derailleur.
The bearing grease is intentionally overpacked and excess grease may seep at the bearing
seals during the break-in period.
Maintenance
See R45 Hub Information section on pages 14 and 15 for R45-specific information.
Maintenance schedule
Chris King Classic Hubs are designed to provide long life and high performance. Beyond an
occasional adjustment, the only maintenance necessary is cleaning, lubricating the RingDrive
(see “The RingDrive”, pg. 11), and re-lubricating the bearings (see “Service of the bearings”, pg.
11). Riding conditions will determine how often to maintain your hubs. As a beginning guideline,
your hubs should be maintained every 6-12 months in normal and dry conditions and every 3
months in wet or muddy conditions.
The bearings in your new Chris King hubs are of the highest quality. However, all bearings
will settle and eventually wear with use. Since looseness or “play” in the bearing assembly
can develop as a result of wear, Chris King hubs have been designed with an adjustable
bearing preload mechanism and any normal play can be eliminated (see the appropriate
“Adjustment” section, pgs.
6 to 10
).
Notes on RingDrive
™
maintenance
Normal preventative maintenance of the RingDrive is simple and can be performed using
basic tools (see “The RingDrive”, pg. 9). In many cases, a minor cleaning and reapplication
of lubricant is all that may be necessary. Judging when to perform this basic maintenance
is determined by riding style and conditions. As a beginning guideline, your hubs should
be maintained every 6-12 months in normal and dry conditions and every 3 months in
wet or muddy conditions.
If foreign debris is detectable in the grease and/or the grease looks hard or dry, a complete
servicing (removal and cleaning) of the RingDrive should be performed. Complete service
includes the removal of the RingDrive engagement mechanism and requires the use of
our Hub Service Tool. See any authorized Chris King dealer for complete service or you
may purchase a Hub Service Tool Kit from your dealer or directly from Chris King Precision
Components. Chris King Precision Components provides overhaul services at reason-
able rates. Contact the Customer Service hotline at 800-523-6008 for details.
Lubrication
See R45 Hub Information section on pages 14 and 15 for R45-specific information.
Normal conditions
In normal riding conditions (30°-110°F), our RingDrive grease is recommended for the bearings
and the RingDrive. Do not substitute other brands of grease, as they may cause premature
wear and/or be too sticky for the helix of the RingDrive inhibiting proper engagement.
Cold conditions
To ensure proper engagement in sub-freezing conditions, first be sure that there is no water or
moisture inside the hubshell. The hub may require an overhaul to ensure that the hub interior is
completely water-free. A quality 10w synthetic oil (such as Mobil 1
®
10w-30 or equivalent) works
well over a wide range of temperatures, even in subzero conditions. Mix the RingDrive Lube in the
RingDrive area, especially on the helical splines of the driveshell, with 5-10 drops of Tri-flow
™
or a
quality 10w synthetic oil. Do not over fill.
Wet conditions
Riding in wet conditions necessitates more frequent service. Often this is as simple as removing the axle
and driveshell from the hub, removing any moisture from inside the hub shell, and applying more grease
to the needle bearing. This should not replace periodic complete disassembly and maintenance, especially
in extreme or prolonged wet conditions. Since it is nearly impossible to seal a hub from water and still
have it spin freely, we have designed our hubs to be able to operate normally with some water intrusion.
Although the bearings are stainless steel and will resist water induced corrosion, the lubricant will eventu-
ally deteriorate, leading to premature bearing wear and possible failure. High-pressure spray washing,
transporting or riding the bicycle in the rain, or submersion in water while riding can all lead to lubricant
contamination by water. Be aware of these situations and service more frequently when they occur.
In a pinch...
If Chris King RingDrive lube in not available, a quality 10w synthetic oil may be substituted.
Do not substitute other brands of grease, as they may be too sticky for the helix of the
RingDrive. Running the hub on oil will cause the RingDrive to be more audible, yet functionally
no different.
If you have any additional questions, please call our Technical Services Department at 800.523.6008,
or check out our web site for tech info and videos: www.chrisking.com
Disassembly of two piece axle on front Classic hub
(see Figure 5)
Axle End
Adjusting
Cone
Front Hubshell
Assembly
Front Two Piece
Axle Assembly
Figure 5
O-ring
O-ring
1. Insert 5 mm hex wrenches into both ends of axle assembly.
2.
Hold right hand stationary and turn left hand counterclockwise 1/4 turn until assembly is loose.
3. Loosen and unscrew adjusting cone and axle end until they are free from main axle.
4. Slide out main axle.
5. Both hub shell bearing assemblies can now be accessed.
For bearing service information see “Service of the bearings”, pg. 13.
4
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