These SIP PERFORMANCE quick action gear-change pulleys – 'Short Shifter' - represent an optical and technical highlight amongst what is normally a unspectacular part of a steering and control assembly. These items stand out through precision manufacture and are in a two-tone look! Short shifter mechanisms are used on vehicles equipped with manually operated gear-changes to minimise the operating distances between the gears during selection. This leads to a noticeably quicker and more precise gear selection, eliminating Vespa-typical 'phantom' neutral selection! Vintage Vespa models, produced before the PX range, are only originally equipped with a selection rocker device attached to the end of the gear tube without any form of cable routing. If you wish to fit a PX range motor into one of these older models, the gear-change distance is increased considerably. This leads to imprecise gear selection when operated using the outdated and unguided rocker system. The perfectly profiled and precisely manufactured SIP PERFORMANCE 'Short Shifter' gear selection pulleys integrated cable guides ensure an end to all gear selection problems – Once and for all!

Conclusion : Perfect gear, every time!!

SIP – TIP : Do not forget to order a new gear-change cables (#94120000) and fresh nipples (#15319800) to match, when replacing your gear-change pulley!

短换档器 "换档皮带轮，用于 Vespa 125 VNB3-6/150 VB1/VBA/VBB/VGLA-B/T3-T4/GS VS2-5/160 GS 车型：

这些部件由实心坯铝 CNC 加工而成，电缆导轨直径：44 毫米。通过斜切的外部接头槽，可快速更换齿轮电缆。由于我们版本的制动盘上固定件的原始位置，它们也可以简单地 "即插即用"。这些制动盘完全集成到了原转向组件设计中，可实现所有齿轮的快速操作。