Manual

Introduction

Thank you for choosing Alpina! Your trust will be rewarded with a reliable and high-quality product, handcrafted in Italy, and finished in every detail.
In this Manual you will find all the technical documentation for the Products, including important indications on care, maintenance, and correct use. Follow these indications to ensure the correct functioning of the Products and to maintain their quality over time.
We therefore highly recommend that you this Manual in print or digital form, so as to ensure quick access to this information.
We also remind you that any mechanical intervention on the Products must be carried out by qualified professionals.

Updates

Our effort to maintain a high level of product safety and quality involves a constant advancement in the design and research of technologies, materials, and treatments. Therefore, there may be some discrepancies between the information in the Manual and the equipped Products. The data, figures and descriptions provided below cannot constitute a basis for any claim whatsoever.

Warranty

In general, any alteration of or tampering with the Products will cause the termination of any guarantee provided by Alpina and therefore Alpina shall be released of any liability. In particular, in the following cases entail the termination of the warranty:
• Damage caused by the user (including, but not limited to: falls, accidents, impacts, etc.).
• Improper use: failure to comply with the methods of use of the product as indicated in this Manual or in the instructions provided by the Manufacturer of the vehicle.
• Normal wear and tear: normal wear and tear of the product deriving from use in compliance with the indications provided by the vehicle Manufacturer.
• Non-compliant installation: installation of the product not compliant with the indications given in this manual or with the instructions provided by the vehicle Manufacturer.
• Tampering and alterations of the Products: any tampering with the Products. Including, but not limited to: alteration of tightening torques, alteration of hardware elements, replacement of one or more parts with non-original parts or in a manner not indicated in this Manual, installation of mousse, flaps, or other sealing products.

Compatibility

The wheels are supplied already assembled and are compatible with the motorcycle models explicitly indicated.
It is possible to reuse original motorcycle parts (chain, sprocket, bracket, brake discs, screws, spacers, sprocket support plates, sprocket protectors), provided they are in good condition. These parts are not supplied with the Products. It is also possible to reuse the original tires only if they are suitable for Tubeless use.

Tires

I Prodotti sono realizzati con tecnologia brevettata STS e pertanto supportano esclusivamente l’impiego di pneumatici Tubeless di misura compatibile con la misura di cerchio richiesta. Pneumatici tube-type (con camera d’aria) non sono pertanto supportati.
Le ruote sono state ideate per essere equipaggiate con le misure di pneumatici previste dal Costruttore del veicolo e indicate nel libretto di circolazione del veicolo. Qualora sia previsto l’impiego di diverse misure di pneumatico, ti invitiamo ad accertarti dell’adeguata corrispondenza delle misure degli pneumatici con le dimensioni dei cerchi richiesti.

Prima di sostituire le ruote, assicurati che gli pneumatici originali montati sul veicolo siano compatibili per l’impiego Tubeless. Qualora non lo fossero, rivolgiti al tuo gommista di fiducia per l’acquisto di pneumatici adeguati.

Non utilizzare in alcun caso penumatici tube-type e prodotti quali mousse, fasce adesive, flap o altri sigillanti: il corretto funzionamento del sistema Tubeless STS potrebbe risultare gravemente compromesso, con conseguente rischio di danneggiare il veicolo o l’utilizzatore del veicolo stesso.

I Prodotti non richiedono pressioni specifiche per l’utilizzo degli pneumatici. Pertanto, è opportuno fare riferimento alle indicazioni dettate dal Costruttore del veicolo o dal Produttore degli pneumatici.

In particolare, l’installazione dei prodotti quali mousse, flap, fasce adesive o altri sigillanti rappresenta a tutti gli effetti un caso di manomissione dei Prodotti e comporta pertanto la perdita della garanzia.

Rispettare le indicazioni sulla pressione degli pneumatici fornite dal Costruttore del veicolo o dal Produttore degli pneumatici stessi.

Gli pneumatici devono essere installati senza aggiunta di saponi o altri liquidi. L’impiego eccessivo di questi prodotti potrebbe compromettere irreparabilmente il funzionamento del sistema Tubeless STS.
In particolare, durante l’installazione del pneumatico sul cerchio non è necessario cospargere la superficie interna del cerchio con saponi o altri liquidi. Tali prodotti, una volta essiccati, potrebbero compromettere il funzionamento del sistema Tubeless.Gli pneumatici devono essere installati senza aggiunta di saponi o altri liquidi. L’impiego eccessivo di questi prodotti potrebbe compromettere irreparabilmente il funzionamento del sistema Tubeless STS.
In particolare, durante l’installazione del pneumatico sul cerchio non è necessario cospargere la superficie interna del cerchio con saponi o altri liquidi. Tali prodotti, una volta essiccati, potrebbero compromettere il funzionamento del sistema Tubeless.

Do not use detergents or other substances on the inner rim profile or in the contact area.

Braking system

Alpina wheels have been designed to ensure perfect compatibility with the braking system equipped as standard on the vehicle for which they are intended. Any replacement of the braking system components (even if upgraded) could compromise the correct functioning of the wheels.

Transmission

Alpina wheels have been designed to ensure perfect compatibility with the transmission system equipped as standard on the vehicle for which they are intended.
Any replacement of transmission components (even if upgraded) could compromise the correct functioning of the wheels.

Alpina Raggi S.p.a. declines any responsibility for damage deriving from alterations, changes, upgrades of the transmission system equipped as standard on the vehicle. Such damages are not covered by warranty.

Proper installation and maintenance of the transmission system, especially on models without flexible coupling, are essential requirements for the proper functioning of the Products. Specifically, make sure that the transmission system is in good condition, maintained regularly and installed according to the instructions provided by the Manufacturer of the vehicle.

Alpina Raggi S.p.A. declines all responsibility for damage resulting from improper installation and maintenance of the transmission system.

Any damage resulting from improper installation and maintenance of the transmission system is not covered by warranty.

Load

Alpina Products are designed to ensure the best performance while riding. However, it is advisable to comply with the Manufacturer’s instructions on load capacity and limits of use of the vehicle.

Specifically, do never exceed the load limits indicated by the Manufacturer for the transport of luggage or passengers. The Products have been designed for use in accordance with the Manufacturer’s instructions.

Any damage resulting from the use of the Products with excessive load compared to that indicated by the Manufacturer of the vehicle is not covered by warranty

Conditions of use

The conditions of use of the Products are strictly limited to those indicated by the Manufacturer of the vehicle. Specifically, although Alpina wheels are designed to ensure high performance, they cannot be used for purposes other than those indicated by the Manufacturer.
Alpina Raggi S.p.A. declines all responsibility for damage resulting from use of the vehicle that does not comply with the Manufacturer’s instructions. Any damage resulting from such use is therefore not covered by warranty.

Any damage caused by use other than that indicated by the Manufacturer of the vehicle is not covered by warranty.

Use on racing track

Some Products, compatibly with the use modes provided by the Manufacturer of the vehicle itself, can be used exclusively on the track. These products do not allow the installation of tires intended for road use.

Any damage resulting from the use on the road of models meant only for track use are not covered by warranty.

9.2. Alpina Products are designed to guarantee the best performance during sports activities. However, please note that when used on the track or on unpaved roads, the wheel is subjected to greater stress and wear than during normal road use.

The wear resulting from track use is to all intents and purposes considered “normal wear” for the purposes of warranty coverage.

Any deterioration of the surfaces due to use on the track and during sports competitions is not covered by warranty.

Before use on the track, check that the tire pressure is as desired and that there are no air leaks. In addition, you should make sure that there are no signs of deterioration that could affect the proper functioning of the Products (presence of rust, cracks, deformations, or other signs of damage).

Off-road use

Alpina Products have been designed to withstand high stresses and to ensure off-road use. However, please note that during off-road use, the wheel is naturally subjected to greater stress and wear than during normal on-road use.

Specifically, stones, gravel, debris, and other natural obstacles can damage the wheel and its components.

Any deterioration of surfaces due to off-road use is not covered by warranty.

Cleaning and surface care

• Clean wheels by hand, using a soft cloth or sponge or a non-abrasive fabric.
• Use water at low temperatures, not exceeding 50°C.
• The use of high-pressure washing systems is strongly discouraged. Should this be necessary, however, maintain an adequate distance between the source of the jet and the surface of the wheel (50-70cm minimum).
• The use of detergents to clean the wheels is not recommended. If necessary, use only pH-neutral detergents. The use of abrasive cloths, high-pressure systems, aggressive detergents, and water at high temperatures could irreparably damage wheel surfaces, O-rings or safety rings.

Deterioration resulting from failure to follow the cleaning instructions is not covered by warranty.

Anodized surfaces

Anodized aluminum surfaces may undergo color variations or lose their natural shine if washed with excessively aggressive products or at high temperatures.

Painted surfaces

Take special care when mounting and dismounting the tire: levers and other sharp tools used improperly may damage the rim surface and remove the paint layer
When riding long distances on unpaved roads (especially stones, gravel, or other natural obstacles), the painted surfaces may show a slight cosmetic damage that, however, do not compromise the correct functioning of the Products.

Polished aluminium surfaces

Polishing by hand ensures an unparalleled aesthetic result, but also special care and attention during use.

Parts

Under no circumstances should non-original parts be used to repair wheels or to replace one or more components. Wheels are designed to use the Alpina STS Tubeless system and therefore require parts specifically designed for this use. The use of non-original parts or in any case parts designated as compatible for a vehicle other than the one indicated may entail serious risks for vehicle driving safety and compromise the Tubeless STS system.

Alpina Raggi S.p.A. declines all responsibility in case of damage deriving from the use of non-original parts to repair Products.

STS Nipples

1 – STS 2 Nipple

STS nipples can have two or three seats, depending on the version (STS1 / STS2).
They are supplied already lubricated and with O-rings already assembled.
Store away from dust and debris, preferably in the bags provided by Alpina in the Spare Parts Kit.
Make sure that the nipples are well lubricated before proceeding with replacement operations.

2 – Safety rings, “new” version

Safety Rings are stainless steel rings located in the lower part, visible when the wheel is assembled, of the STS nipple.
Their function is to prevent the nipple from coming off the rim in the event of breakage or sudden punctures.
Warning: do not use a wheel if one or more rings are missing.

3 – O-Ring

The O-rings are supplied already lubricated and inserted on the nipples.
Infiltration of dust, dirt, sand, or fine dust into the seat of the O-rings can irreparably compromise the correct functioning of the Tubeless STS system.

Spokes

The spokes used on the Products can come in two materials.

The wheels in the Supermoto range are equipped with high-resistance Carbon-Steel spokes, to ensure better performance.
Street wheels are equipped with Stainless Steel spokes, to ensure high resistance to atmospheric agents and an impeccable aesthetic appearance.

4 – Carbon-Steel spokes

Equipped on Supermoto Range
Warning: the spokes equipped on STS2 wheels have a flattening near the thread, designed to ensure perfect adjustment. The flattening must always be visible outside the nipple.

5 – Stainless Steel spokes

Equipped on Street Range
Warning: the spokes equipped on STS2 wheels have a flattening near the thread, designed to ensure perfect adjustment. The flattening must always be visible outside the nipple.

It is possible that the spokes inside the wheel have different sizes, based on their location. Also, different models may have different sized spokes, regardless of rim size.

Not all spokes are the same, nor are they interchangeable: each position inside the wheel requires a specific spoke size, determined by the combination of length, neck and bending angle. When repairing and/or replacing spokes, it is therefore necessary to pay attention to the position of the spoke inside the wheel, so as to replace the part with one of compatible dimensions.

Hubs

6 – Example of hub

Rims

Rims come in two variants, depending on the wheel version.

7 – Standard rim, STS1 technology

Shows dimples in correspondence of the nipples
Thickness of about 6.00 mm

8 – Forged rim, STS2 technology

Smooth surface, without dimples
Thickness of about 12,00 mm in the central part

TMPS pressure sensor kit

The Pressure Sensor Kit is supplied exclusively for models equipped with pressure sensors, in order to guarantee compatibility with Alpina Products.

For instructions on how to install the Kit see the specific section below.

The compatibility kit ensures the use of the original pressure sensor mounted on the vehicle.

9 – (A) 90° Valve

10 – (A) Adapter

11 – (A) Screw M8x25 drilled

12 – (A) Screw M8x10 drilled

13 – (A) Tightening nut

Installation: Verification of proper operation of the pressure system must be performed by an official dealer or a workshop authorized by the Vehicle Manufacturer.

Installation

Difficult operations: contact a dealer or an authorized workshop. Please note that any work on the Products must be carried out by qualified professionals.
The installation of wheels is a complex operation that requires the intervention of a dealer or an authorized workshop and the use of professional equipment, with the appropriate tools indicated by the Manufacturer of the vehicle for the operations of assembly and disassembly of the parts. We advise to not carry out these operations without the help of a professional.
Alpina wheels have been designed to be compatible with the original ones equipped on the vehicle. Therefore, it is advisable to follow the instructions provided by the Manufacturer of the vehicle on the positioning, orientation and tightening of the screws. Wheel disassembly and replacement operations must be carried out according to the vehicle Manufacturer’s instructions. The operations must be carried out by professionals.

Wheel disassembly and replacement operations must be carried out according to the vehicle Manufacturer’s instructions. The operations must be carried out by professionals.

Maintenance

Alpina wheels do not require routine maintenance during their life cycle. However, use of the Products under stress (on racing track or off road) may require extraordinary maintenance operations.
The operations described in the Manual are difficult and therefore intended for qualified personnel with proven experience in the care and maintenance of motorcycle spoked wheels.

In any case, we recommend that you contact our Customer Service who will carry out any necessary interventions.
Alpina Raggi S.p.A. declines any responsibility for damage deriving from the incorrect performance of the operations indicated in the Manual and from the execution of interventions by unauthorized personnel.

Interventions carried out by unqualified personnel or in a manner contrary to the indications of the Manual will result in the loss of the warranty.

Replacing individual spokes or nipples

La sostituzione di uno o più raggi o nippli con parti di ricambio comporta il successivo bilanciamento e ricentraggio della ruota. Si tratta di un’operazione particolarmente delicata che richiede esperienza e professionalità nella costruzione e nella manutenzione di ruote a raggi per motocicli.

To avoid altering the wheel balance, replace one spoke at a time.

Complete disassembly and subsequent reassembly are operations that involve significant changes to the structure and characteristics of the product; if carried out by unauthorized personnel, such operations could irreparably compromise the safety of the Products. Therefore, complete disassembly and subsequent reassembly by personnel not authorized by Alpina will void the warranty.

Removing the Safety Ring or the Safety Clip

Remove the ring with a tip or sharp instrument.

Safety rings can be easily removed with a tip or sharp tool. Be careful when doing this: the sharp tool may scratch or damage the surface of the nipple or rim.

Remember, once removed, the safety ring must be discarded and cannot be reused.

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Older models may be equipped with Safety Clips.

Older models may be equipped with Safety Clips, an earlier version of safety rings. The safety clips have a “C” shape instead of a ring shape.

Remove the safety clips with a screwdriver, as shown in the video.
Be careful while doing this: the screwdriver could damage the surface of the nipple or rim.

Once removed, the Safety Clip must be discarded and cannot be reused.

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Replacing the nipple

Remove the nipple by unscrewing it. Use a hexagonal key.

Once the safety ring is removed, remove the nipple by unscrewing it. Use a standard hexagonal key for this operation.
Make sure that both your hands and your workspace are perfectly clean: dust, sand or dirt could compromise the functioning of the tubeless system.

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Replacing the nipple

Front and rear wheels may have STS Nipples with different threads.

Inside the Spare Parts Kit we always indicate on which wheel to use the nipples. For example, you may find the indication “Front Wheel”: it means that the nipple can be used exclusively to replace the nipples on the front wheel.

Screw the nipple onto the thread of the spoke and then gently push it into the hole.

During this step, it is not necessary to over-screw or over-tighten the nipple.
Once the nipple is inserted into the hole, continue to gently tighten.
Do this initially with your bare hands. Next, use a standard hex wrench.
Make sure that both your hands and the workspace are clean in order to prevent damage to the O-rings.

STS2 wheel spokes have a flattening for adjustment. The flattening must always be visible.

The spokes equipped on STS2 wheels have a flattening near the thread, designed to ensure perfect adjustment. The flattening prevents excessive tightening and must always be visible outside the nipple.

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Removing and replacing the spoke

Remove one spoke at a time, then clean the rim hole with a light cloth.

The balance of the wheel may be compromised if more than one spoke is removed at a time!

Once the spoke has been removed, clean the hole in the rim using a light cloth. This will remove any dirt or seepage that could affect the operation of the tubeless system.

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When does a spoke need to be replaced?

a) the thread is damaged and the nipple is not screwed in correctly;
b) the spoke is broken, deformed or shows signs of corrosion or wear.

Spokes are not all the same: make sure you have taken the correct size from the box with respect to the position.

We always indicate which spokes should be used in which position: as a reference, look at the “DOT” marking on the rim. If on the package you find written, for example, “internal, opposite side DOT”, it means that the spoke can be used in an internal position, on the side of the rim opposite the marking.

When inserting the spoke into the hub, pay attention to the bending angle of the spoke.

Rotate the spoke until it fits perfectly in the hole position: the spoke should never be forced or pulled to reach the correct position. Replace the spoke with a new one if necessary.

Insert the safety ring onto the spoke, thread side up, and let it slide down the spoke stem.

Afterwards, once the nipple is screwed in, it will no longer be possible to insert the safety ring! Never use a wheel without a safety ring!

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Tightening

Do not exceed the tightening torque of 5 Nm under any circumstances.

Over-tightening could result in broken spokes or nipples or cause improper wheel balancing!

Use a torque wrench to properly measure the tightening torque.

Gently push the safety ring into its seat.

Make sure the safety ring is positioned correctly.
Do not use a wheel with missing safety rings!

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If your wheel is equipped with safety clips, insert the clip into its seat.

Insert the clip inside the bottom slot in the visible part of the nipple once the wheel is assembled.

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Guide to the installation of TPMS sensors

Kit composition

(A) = Part supplied by Alpina (V) = Part already present on the vehicle

14 – (A) 90° Valve

15 – (A) Adapter

16 – (A) Screw M8x25 drilled

17 – (A) Screw M8x10 drilled

18 – (A) Tightening nut

19 – (V) Sensor ID: 36318532732

20 – (V) Sensor ID: 36318567683

21 – (V) Sensor ID: 36318532731

The wheels are supplied with valve and adapter already installed.

22 – (A) 90° Valve

23 – (A) Adapter

Installing without pressure sensing sensors

Install the wheels on the vehicle as supplied.

If the vehicle does not have pressure sensing sensors, install the wheels on the vehicle as supplied.

Installing with pressure sensor ID 36318532732

24 – (V) Sensor ID: 36318532732

25 – (V) Sensor ID: 36318532732

26 – (A) 90° Valve

27 – (A) Adapter

28 – (A) M8x25 drilled screw

Installare il sensore RDC sull’adattatore.

Install the RDC sensor on the adapter using the supplied drilled M8x25 hex screw.
Apply a drop of medium threadlocker
Tighten to 9Nm.

29 – Install the sensor directly onto the adapter using the screw provided.

Installing with pressure sensor ID: 36318567683

30 – (V) Sensor ID: 36318567683

31 – (V) Sensor ID: 36318567683

32 – (A) 90° Valve

33 – (A) Adapter

34 – (A) M8x10 drilled screw

35 – (A) Tightening nut

Install the RDC sensor on the adapter.

Install the RDC sensor on the adapter using the supplied drilled M8x10 hex screw.
Apply a drop of medium strength threadlocker
Tighten to 9Nm.

Installing with pressure sensor ID: 36318532731

36 – (V) Sensor ID: 36318532731

37 – (A) 90° Valve

38 – (A) Adapter

39 – (A) Tightening Nut

40 – (V) Sensor ID: 36318532731

Remove adapter and valve

Remove adapter and valve installed on the wheels as supplied.

Install the sensor

Check sensor location and orientation to avoid interference with other wheel components.
Apply a light coat of white grease to the rubber ring on the sensor.
Install the specific tightening nut provided.
Apply a drop of medium threadlocker
Tighten to 12Nm.

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