USING
US
S IN
I G ALLOY WHEELS CORRECTLY AND
D SAFELY
SAFEL
ELY
ELY
ALU M I N U M WH E E L US E R M
MAN
ANU
UAL
AL
TO RETAILERS
Please review our user’s
’ manual so you can provide your customers with
the proper instructions.Please also give your customer this manual.
TO OUR CUSTOMERS
Please read this first for your own safety.
Please keep this in your glove compartment or trunk, in a place where
it is easily accessible.
2022-09
BEFORE FITTING ALUMINUM WHEELS,
PLEASE BE AWARE OF THE FOLLOWING
CONFIRM THE CONTENTS
OF THE PACKAGE
Before mounting tires, please first examine the products to ensure they match the
vehicle. Also make sure that the product size, color, and P.C.D. are correct before
the air valves, tires and balancing weights are fitted.
If there is any clear damage or missing items, please contact us immediately.
Please be aware that we cannot accept any returns on products which have been
scratched and/or damaged after attempt of wheel installation.
ADDITIONAL MARKS
The instruction contain the following important warnings:
D ANGE R: Highly likely to cause death or serious injury if instructions
are not followed properly.
WARNING: Can result in death or serious injury if instructions are not
followed properly.
CAUTION: Can result in personal injury or property damage if instructions
are not followed properly.
These aluminum wheels comply with the technical standards (JWL for
passenger cars, JWL-T for trucks and buses) that apply to light-alloy disk
wheels for motor-vehicle use. Furthermore, they have passed strict testing
by the Japan Wheel Testing Council and bear the VIA mark.
However, in the event vehicles are driven in non-conventional ways; or if
vehicles are abused through racing, rallies and other activities that go
beyond the wheel’s limits of use; or if accidents or wheel deformities are
caused by factors that are determined during regular maintenance checks
or by cracks in wheels, RAYS Co.,Ltd. exempts its liability for legal suits
claiming compensation and takes no responsibility.
The warranties do not apply.
2
CHECKING THE Please verify that the wheel size, number of holes, P.C.D.,
inset, configuration of mounting sides and nuts are com-
WHEELS patible with the vehicle. Then fit the wheels to the hub, after
THE NAME OF EACH fitment and compatibility have been confirmed.
WHEEL PART
Flange Well Hump
Bead seat
Rim unit
Rim unit
Inset
Disk unit
Disk unit
Bolt hole
diameter
P.C.D. (Bolt pitch
Center Rim circle diameter)
bore diameter
Diameter
of the Side for installing
hub hole the hub
Center line Design side
Valve hole
Inner side Outer side
Rim width
APPROPRIATE When mounting the tire on a wheel, select a tire size that is
TIRE SIZE compatible with the rim size. If a tire is mounted on a rim that
is extremely wide in relation to the tire width (also known as
SELECTION "stretched tire"), it is extremely dangerous because the bead
may fall off while driving or the rim flange may protrude, caus-
ing the rim to directly contact with the curb or other objects.
VERIFYING THE Please confirm that your lug bolt/nut is compatible with the
wheel. Attributes such as the thread pitch, seat type and
BOLTS AND NUTS
thread length must be confirmed to ensure safety.
If you use an improper size or shape of a lug bolt/nut, the
bolt/nut may loosen from driving a vehicle.
Taper Round
Flat
Tapered seat Rounded seat Flat seat
Wheel Wheel Wheel
3
USING HUB RINGS If the wheels use accessory spacers or hub rings, please
make sure they are properly attached. Failure to do so can
AND OTHER PARTS
result in nuts and bolts working loose and coming off while
the vehicle is traveling. Please ensure that hub rings are re-
moved before replacing spare tires or the original wheels.
ATTACHING THE Always use new accessory air valves. If the valves are not
properly inserted in the valve holes, air leaks may occur.
AIR VALVES
Also, please do not reuse valves once they have been re-
moved and the grommets are used, as such valves can be the
cause of air leaks.
MOUNTING TIRES When inflating tires during assembly, please take safety
measures such as placing the tires inside a safety enclosure
to reduce the risk of tire rupture. Special training is required
by law to perform this inflating operation, so someone who
has undergone such training must perform the work.
VERIFYING After the tires are assembled, please confirm there are no air
leaks. Pay particular attention where the tire fits onto the rim
AIR LEAKS
and the area around the valve. Air leaks that occur while the
vehicle is traveling can be extremely dangerous, as they can
cause damage to the wheels and tires, leading to accidents.
ADJUSTING After the tires are assembled, please adjust the balance of all
the wheels. Improper balance can cause vibration and insta-
BALANCE
bility during driving, which can lead to friction on the tires. It is
also advisable to have the tires aligned.
Also, if the suspension is installed with an extreme camber,
etc., that causes an extreme load to be concentrated on the
inner rim, the wheel may be subject to unbalanced stress,
which may lead to damage or an accident; this is extremely
dangerous. If possible, we also recommend vehicle alignment
after installation.
INSTALLATION BY Depending on the vehicle model, there may be weights,
assembly bolts, or locating pins protruding from the brake
VEHICLE TYPE
drum or mounting surface, or washers sticking out at the
base of the bolts. Please ensure that these items do not
encounter any part of the wheel.
4
TIGHTENING THE PLEASE USE A TORQUE WRENCH
NUTS AND BOLTS Tighten nuts and bolts to the recommended torque. If your
vehicle's instruction manual specifies a tightening torque for
nuts (bolts), properly tighten them according to said manual.
M10 at 50-70 N/m (5.1-7.2 kgf/m)
M12 at 85-132 N/m (8.7-13.5 kgf/m)
M14 at 125-180 N/m (12.8-18.4kgf/m)
Over-tightening the nuts and bolts can after the shape of
their seats or damage the bolts. Conversely, failure to tigh-
ten them enough may cause them to loosen and come off.
If an impact wrench is used, first tighten to a low torque and
then use a torque wrench to tighten the lug nut to the re-
commended torque spec.
ORDER TO TIGHTEN BOLT/ NUT
1 1 1
3 6
4 3
4 3
5 4
2 5
2 2
4 HOLE 5 HOLE 6 HOLE
VERIFYING AFTER After the wheels have been fitted onto the vehicle, check
that they don’ t come into contact with any part of the body
THE WHEELS ARE or the suspension system. (When checking the front wheels,
FITTED turn the steering wheel all the way left and right.)
It is illegalfor the wheels to protrude beyond the vehicle’s
outer fender.
VERIFYING Before driving, always check the air pressure in the tires.
For low profile tires in particular, low pressure reduces their
AIR PRESSURE ability to absorb impact and induces added stress on tires
and wheels. Please make sure to check that the rubber seal
ring inside the valve cap is attached and not loose.
Turn the valve cap approximately 90 degrees after the fast-
ening point; tightening the valve cap too much may result
air leaks.
5
CONTINUING TO The nuts and bolts can easily become loose during the first
100 kilometers after the wheels are fitted or rotated.
KEEP NUTS AND Use a torque wrench to make sure the nuts and bolts remain
BOLTS TIGHT tight at the recommended torque.
PRECAUTIONS Never drive violently or wildly, such as sudden accelerating,
braking and turning, as this not only puts added stress on
DURING DRIVING the tires and wheels but also can cause accidents.
Furthermore, driving over bumps or curbs and sidewalks
can cause parts to bend and become misshapen. Driving
while a wheel is bent out of shape can cause its wheel parts
to crack.
DEALING WITH If you feel unusual vibrations or hear strange sounds while
driving, immediately stop the vehicle in a safe place and
PROBLEMS WHEN check if the wheels’ nuts and bolts and the shape of tires
THINGS GO are okay. Should you find anything wrong with the wheels
WRONG (deformities, cracks, loose nuts and bolts, air leaks, etc.), stop
driving and immediately contact your dealer.
REGULAR The aluminum alloy gives superior resistance to corrosion.
Even so, always keep the wheels clean by washing them with
INSPECTIONS plenty of water after driving in bad road conditions, where
chemicals are used to prevent ice on the roads, or at seaside
or snow areas, where salt is often present.
If mud and salt are left on the wheels, their surfaces may
become splotchy or discolored. When buying wheel or vehi-
cle body cleaners, please read the products’ instruction
carefully as the products contain substances that can cause
discoloration or splotches, such as abrasives and substances
with high levels of acidity and alkaline. In addition, cleaning
with highly concentrated alcohol disinfectants, thinners, and
similar cleaners may damage the surfaces of the wheels,
center caps, and other parts.
6
PROHIBITED We ask our customers and businesses never to modify our
wheels. Modifications that involve welding or bending the
MODIFICATIONS
wheels are extremely dangerous because they can reduce
the wheel’s strength or cause air leaks that can lead to bro-
ken parts or accidents. Furthermore, the bolts that attach
the assembled wheels to the rims and disks are tightened
at designated torque levels, so never disassemble, tighten
or loose them.
We will not acknowledge any claims concerning wheels that
have been modified by the user.
INSTRUCTIONS For handling the center caps, please read and follow the in-
structions below. Please check that the wheel and center
cap portion is cleaned and free from dust dirt.
DIAGRAM 1: The center caps’ O-rings (rubber rings) are
covered in grease. Please do not remove it. If the amount
of grease on the caps is insufficient when you reattach
them after they have been removed, please re-apply new
grease or lubricate the wheel assemblies.
DIAGRAM 1 and 2: Insert the center cap at an angle and
press the arrow marker. If pressed onto the design center
part of the cap, it may damage/change shape.
DIAGRAM 3: Install center caps with the included screws.
DIAGRAM 4: Install center caps from the inside of wheel.
DIAGRAM 1 DIAGRAM 2
DIAGRAM 3 DIAGRAM 4
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INSTRUCTIONS ① Turn the wheel with face on the bottom; upside down.
As shown in the diagram below, press the arrow mark on
the backside of the center cap and remove.
② There is a hole in the center of the backside of the center
cap. By no means should you press on the hole, as doing
so can cause damage to the center cap or fade it’s design.
③ To avoid damaging the surface of the wheel when it is
lowered, rest it on a flat surface free from debris.
④ Always ensure the cap is removed. If it is damaged from
an impact, such as being hammered, it may no longer fit
The center cap viewed from behind
and may come loose.
This diagram shows an example
of the O-RING TYPE
As the surfaces of products incorporating special finishing or paint (including diamond
mirror cut, sputtering, almite) are extremely delicate, long-term use of some wheel clean-
ers and other products can scratch and discolor the paint or corrode the aluminum.
Please do not use cleaners that have too much acidity or alkalinity and by thoroughly using
a soft cloth with as much water as possible.
Do not use cleaners for planting or removing iron filings. If cleaning products are used,
please carefully read the instructions to ensure that there is no damage to the finish.
Scratches to the wheel surface caused when cleaning or rubbing the side of curbs cannot be
repaired.
Friction from sponges or partial compounds can cause scratches.
Avoid using high-speed car washing machines for cleaning wheels.
When tires and wheels are removed for storage, please thoroughly wash and dry them.
Do not store them in places of direct sunlight, high temperature, or humidity.
PRODUCTION
HEADQUARTER 2-4-7, Nagatanishi, Higashiosaka-city, Osaka, 577-0016, Japan
SALES OFFICES Sapporo, Sendai, Tokyo, Nagoya, Osaka, Hiroshima, Fukuoka,
RAYS Takamatsu
Business hours: 9:00 18:00/except Sunday, Holidays
