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近年来,美国速连(Sram)公司的转把式变速操纵把专利产品在山地车上的使用越来越广泛。组成这种变速操纵把的零件要比其它的变速把少,而且有一些新的保养维修新技术。比如,你必须拆下部份操纵把部件
In recent years, Sram’s turn-by-turn speed-change operation has made the use of patented products more and more widespread in mountain biking. The components that make up this shift paddle are fewer than the others and there are some new maintenance techniques. For example, you must remove part of the maneuvering part