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Calculateur de longueur de rayon pour la construction de roues - Version gratuite
* Uses a well proven formula that I have personally used for hundreds of wheel builds
* Includes a large built in database of rims and hubs, retro and modern
* User database of rims and hubs, add up to 12 rims, 12 front hubs and 12 rear hubs of your own to the database for easy future calculations