V-belt automatic stepless gear system is widely used for motor scooters. Stepless speed change varies with different types of V-belt automatic stepless systems.
摩托车V带自动无级变速系统广泛用于坐式摩托车上，不同形式的V带自动无级变速系统实现自动无级变速的具体结构型式是不同的。
Front-wheel system was changed from the manual tension V-belt to automatic tension V-ribbed belts , more smoother operation and higher reliability.
前端轮系从手动张紧的三角带传动改为自动张紧的多楔带传动，运转更平稳，可靠性高。
The automatic speed changer has a primary sheave, a secondary sheave, and a V-belt carried on the primary sheave and the secondary sheave.
自动变速 器包括主带轮、副带轮以及围绕主带轮和副带轮缠绕的V带。
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