Gear pulley, connects with the gear shift cables in the headset. Transfer gear shift operation from the Headset to the gearbox of your Vespa or Lambretta

All Vespas and Lambrettas with a manual gearshift rely and a twistgrip for the shifting. The twists are then transferred, either with two shift cables, or, in the case of the latest models, with a shift wire. These are hooked into the shift pulley in the headset and clamped at the gearbox end.

• precise and easy shifting
• less gear jumping and less missing of gears
• lower risk of damage caused by worn components

“Factory new” shifting

The quality of the shifting mainly depends on the condition of the mechanical components. Worn out gear pulleys or low quality or worn gear cables have a huge influence on the quality of shifting. Gears which are not engaged properly will also cause jumping-out-of-gear. The load peaks caused by this may not only damage the gear cogs but possibly even the engine cases. Check all components relevant for shifting regularly, replace worn components in time.

The SIP CNC pulleys are particularly nice. Unlike the original one, which usually are brazed sheet metal and tube, the SIP pulley is made from solid block of aerospace grade aluminium. It doesn’t get any more precise, and they are much stiffer than the original pulleys too. A beautiful albeit unfortunately invisible upgrade.

Conclusion: Perfect replacement for damaged or missing parts. Great update for worn gear pulleys.

SIP TIP: Use our SIP Performance shift cables Art.-Nr. 94105200, 94190900 for better even than factory gear shifting.