AlterEgo- Hardware SRL




Carbon Sheet Rim

The Carbon Sheet Rim (CSR) is a new concept for building a carbon wheel rim. Instead of building a complete rim and then drilling it, the rim is obtained by joining two half-shells, which leave the place to accommodate the spokes directly into the mold. The carbon fiber structure holds continue, with no hole cutaway: it therefore keeps all its strength and stays inherently more durable and reliable. A weight reduction of over 60% can be achieved (compared to a 2,500 grams, 7000 series forged aluminum rim).

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Carbon sheets

Steel nipples

Steel spokes




Perfectly symmetrical

No need for drilling the carbon sheets

No residual stresses inside the rim structure



Extremely light

Extremely stable


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