Alpina Raggi supermoto wheels

Alpina Raggi is a company known for manufacturing high-quality wheels,
especially in the context of motorcycle and off-road applications.
Alpina is an Italian company that has been in the wheel manufacturing business for several decades.

STS TUBELESS SYSTEM

A Tubeless wheel is a wheel without any inner tube. Specific tubeless tyres are mounted directly on the rim, without any air chamber. There are many advantages connected to this system: weight savings, reduced tyre consumption, safety and riding performances.
STS stands for "Standard Tubeless System" because of its simple application on every rim, without any need of further adaptation. We use the standard wheel architecture designed by the manufacturer and we add our tubeless system: specific drilling angles together with our STS Nipples, the fulcrum of our technology

HOW THE SYSTEM WORKS

Our STS nipples have O-Rings that are positioned inside the profile of the rim.
This ring works as a permanent seal, with an extreme durability and resistance to temperatures and atmospheric agents. Additionally, a Safety Clip is located in the lower slot, in order to prevent the nipple from being abruptly ejected out of its seat in case of spoke breakages or severe punctures.

MAIN BENEFITS:

Safety
Tubeless wheels prevent tyres from deflating immediately after punctures and are easier to be repaired.

Weight
A considerable weight reduction, from 800g up to 2 Kg thanks to the removal of inner tubes.

Hump
Our rims are provided with a security hump that prevents the tyre from being abruptly ejected in case of punctures.

Tyre consumption
Tubeless wheels ensure an increased durability of tyres. Without an inner tube, the air is distributed uniformly inside the tyre. The result is a regular wearing of the surfaces and the reduction of fuel consumption: more kilometers and less tyre changes over time.

Plug & Play
Each wheel fits perfectly with the corresponding motorcycle model, without additional parts or adaptations.

STS2 AND FORGED RIMS
THE EVOLUTION OF SPECIES

Forged
The new generation of Alpina Tubeless wheels is equipped with forged rims instead of standard, extruded rims: produced starting from one, single piece of aluminum, without weldings and dimples (Weldless Technology), these products represent the best available technology in aluminum rim manufacturing.

Feel the difference.
Due to the increased thickness in the center of the rim (up to 12mm) and to the perfect roundness, these wheels ensure an incredible durability even during the most extreme off-road activities, together with a better handling and riding precision.

STS 2 Technology double seal.
STS 2 Nipples are an evolution of our standard tubeless system, equipped with a single O-Ring. The increased rim thickness of 12mm allows the use of a double O-Ring for a durable seal and a safer tubeless system.

A new design A rim without dimples and weldings, for an uncomparable aesthetical result and a clean, modern design.