Thank you for purchasing BBS forged wheels.
Please read this manual carefully before useof the wheels and ﬁt them in accordance with
the instructions in the manual.

BBS Forged Wheel Instruction Manual◎Precautions before installing BBS forged wheels

Preparation before wheel mounting
Please check the contents of the box.
Before mounting the tyres, check the appearance ofthe product and that they match the vehicle on which
they are mounted. Also check that the size, color and
PCD are correct. If the tyres are damaged or missing,please contact the dealer immediately.

Terms of use
BBS forged wheels conform to the "TechnicalStandard for Light Alloy Disc Wheels for Automobiles(JWL)" and have passed the strict tests of the"Automotive Light Alloy Wheel Testing Council" andhave been awarded the *VIA mark, but we do not takeany responsibility for accidents, deformation or
cracking of the wheels caused by driving in places
where automobiles are not generally driven, byoveruse exceeding the limit of use such as racing andrallying, or by illegal modiﬁcation.
*The VIA mark does not apply to FI-R .

Precautions when installing wheels
Precautions after wheel mounting
Precautions for wheel use
Magnesium forged wheels (warnings and cautions)

The marks at the beginning of the text have the following
meanings.Please ensure that you observe the following.

ALERT

This sign shows that death orserious injury may result fromwrong handling.

CAUTION

This sign shows that serious injury
or breakage may result fromwrong handling.

Preparation before wheel installation
Selection of wheels and tyres
Never use wheels and tyres that are not compatible
with the vehicle on which they are ﬁtted or that are
not compatible with the wheel size. Consult yourdealer and select wheels and tyres that arecompatible with the vehicle on which they are ﬁtted.

About reverse shape wheels
When mounting a tyres on a reverse-shaped wheel,
mount it from the inner rim with the inner rim on theupper side. In this case, use a plastic wheel clamperon the tyre changer to prevent damage to the outerrim.

Checking the bolts and nuts
Always use genuine BBS wheel nuts or bolts. (ForPORSCHE and other models, use genuine bolts).
Using nuts and bolts that are not compatible withBBS wheels may result in defective wheel mounting
and risk of wheel damage accidents.

Use of hub rings
For wheels of the type that use a hub ring in themounting hub section, the wheel can be adapted tomultiple vehicle models by attaching a hub ring in
the mounting hub section. For details, refer to "Howto install the hub ring (adapter ring)" on our website.
Alternatively, check with your dealer and select a hubring that is compatible with your vehicle.

Air valve installation
Use the genuine BBS air valves supplied with thewheels; the speciﬁed tightening torques for genuine
BBS air valves are as follows.
Aluminum made air valve [Black]（P5615017）

4±0.6 N・m

Except for above

2±0.5 N・m

Use of non-standard air valves may cause air leaks,
resulting in damage to the tyre and wheel.
Since electrical corrosion might be happened,
please do not use brass or aluminum made air valves
or valves caps combined together.

Checking for air leaks
After tyre installation, be sure to check that there areno air leaks. Ensure that the tyre pressure is correct
on all wheels and that the wheels are correctlybalanced.

Install the hub ring according to the following procedure.
Place the wheel on a stable
platform with the surface tobe mounted on the vehicle
facing up.（ See Fig.1）
Fit the hub ring that ﬁts thevehicle onto the centre borewith the stepped part (outercircumference) facing up, asshown in Fig. 2.

Spring Ring

Adapter ring
(Hubring)

Fig.1

Fig.2

Precaution when installing wheels
Next, ﬁt the supplied spring ring deep into the groovein the mounting hub section to secure the hub ring.
Insertion order

Inlaid state

Hubring

Spring Ring

Tighten the wheel nuts or bolts gradually in theorder shown in the diagram below.

ditch
Hubring

Clean the hub surface (mounting surface) of thewheel and the wheel mounting surface of the axle.
Never use oil, lubricant, etc. on the wheel mounting
bolts and nuts. Dirt, foreign matter or oil on themounting area may cause the wheel to loosen.

centre bore

Wheel mounting holes: 4 holes
Tightening order for nuts and bolts

Do not ﬁt the hub ring withthe stepped part (outercircumference) downwards.
If ﬁtted in this way, the hub
ring cannot be secured by
the spring ring, which isvery dangerous.
Do not ﬁt the spring ring
into the mounting hub ﬁrst
and then ﬁt the hub ring. If
ﬁtted in this way, the spring
ring will not secure the hub
ring and the hub ring will
protrude from the wheel
surface, which is very
dangerous.

Wheel mounting holes: 5 holes
Tightening sequence for nuts and bolts

Tightening torques must be in accordance with the following orvehicle regulations.

M12 bolt/nut for passenger cars
M14 bolt/nut for passenger cars
M14 bolt and nut for SUV vehicles

HubringSpring Ring

The hexagonal head diagonal
dimension of the nuts suppliedwith BBS wheels is 21 mm.
Please note that the diagonal
dimension of the genuine nutfor Subaru, Honda and Suzuki
vehicles is mainly 19 mm, so
the on-board tools supplied as
genuine accessories for thesevehicles cannot be used withBBS wheel nuts.

oppositesidePrecautions for wheel use
Installing and removing the centre cap (SUPER-RS)
To install the hexagonal centre cap on the wheel,insert the threaded part of the centre cap into thecentre hole thread on the wheel and turn it in aclockwise (right) direction. Finally, align the special
spanner with the hexagonal cap and turn it in aclockwise (right) direction to tighten.
The tightening torque at this point is shown below.
Tightening torque for centre cap

appox. 25N・m

Note that this torque corresponds to turning thespecial spanner with a force of approx. 200 N applied
to the handle of the special spanner.
When removing the centre cap, turn the special
spanner in a counterclockwise (left) direction.
Dedicated spanner
front

behindAfter the initial installation or after changing
positions, the mounting nuts and bolts tend toloosen, so retighten them to the recommended
torque after approximately 100 km of driving. Alsocheck for looseness during daily inspections.
When using a spare tyre, use the vehicle
manufacturer's genuine nuts or bolts.
Do not use genuine BBS nuts and bolts to spare tyres
installed other than BBS forged wheel, as they will
not ﬁt and cannot be tightened or will be
insuﬃciently tightened, causing an accident.
Two-piece assembled wheels are tightened using
genuine BBS rim bolts to the manufacturer's speciﬁed
torque.
Never use ordinary rim bolts as they are not strong enoughand lack durability. Also, never retighten or loosen thebolts, as this will lead to deterioration of the bolts andloosening of the bond. If rim bolts become loose,
discontinue use immediately and consult the dealer.

Precautions after wheel installation
rim bolt

After mounting on the vehicle, check that the wheels
are not in contact with the vehicle body, suspension
components, etc. Check the front wheels by turning
the steering wheel fully to the left and right.

Do not use metal tyre chains as they will damage thewheels.

It is dangerous and prohibited by law for tyres andwheels to protrude from the vehicle body.

Take care when riding up onto kerbs or uneven partsof the road, as this can easily damage the wheels.

Magnesium forged wheels (warnings and precautions).
Aluminium alloys are prone to corrosion when
exposed to salt and anti-freezing agents, so washwith water after riding by the sea, on snowy or roughroads.

Use a neutral detergent for cleaning.
When using commercially available wheel cleaners,
check the instructions carefully and do not use thosethat are acidic or alkaline or contain abrasive
materials. Also, do not use wheel cleaners for plating
or iron powder removers.

Avoid washing the wheels with high-speed car washmachines, etc., as they are likely to scratch thewheels.

Never attempt to repair or modify deformed or
cracked wheels by a repairer or yourself. If
deformation or cracking occurs, stop using the wheel
immediately and be sure to consult your dealer.

If abnormal vibrations or noises are detected whiledriving, immediately stop the vehicle in a safe placeand check for loose nuts, deformed wheels, tyrecondition, etc.

Always check the tyre pressure before riding.

When replacing tyres, check that the air valve has notdeteriorated.

Magnesium alloys are extremely light, with a speciﬁc
gravity of approximately two-thirds that ofaluminium alloys, and while they are an excellent
material with high strength, they are more
susceptible to corrosion than aluminium alloys.
BBS magnesium forged wheels are treated with a
special corrosion-resistant coating, so they have thesame coating performance as aluminium forgedwheels, but if the coating is damaged or otherwise
destroyed and the metal surface is exposed,
corrosion will progress faster than with aluminium
forged wheels.
Before using this product, in addition to the warnings
and cautions (P4-P11) in this manual, please also
follow the information below to ensure correct use.
Air valve installation
Use the genuine BBS aluminium alloy air valve
supplied with the wheel. Use of other air valves may
cause wheel corrosion and is dangerous.
For the tightening torque of the genuine BBS
aluminium alloy air valve, refer to section 1-3 of thismanual.
When cleaning the wheels, wash them with fresh
water using a soft cloth rag and then wipe them witha dry cloth. The use of brushes, especially withhigh-speed washing machines, can damage thecorrosion-resistant coating on the wheel surface andis dangerous.
Wash the wheels at least once a month and inspect
the entire wheel for scratches and abnormalities. If
scratches or abnormalities are detected, be sure toconsult your dealer.

Tokyo Main Office (Sales Department)
12F Shiba Park Building A, 2-4-1 Shibakoen, Minato-ku,
Tokyo, 105-0011 Japan
TEL.+81-3-6402-4090 FAX.+81-3-6402-4110