Peugeot Doppler Sprocket Adapter 0212940001 Vespa made it easy with

Vespa made it easy with three cylinder studs instead of four

it has seen an insignificant amount of use

We've even seen these fitted on to Derbi Variants

you may have to shave the housing down a little to fit this variator

System based on an uP STM8 - 8 bit microprocessor with a processing speed of 20MIPS (Million Instructions Per Second)

Peugeot Doppler Sprocket Adapter 0212940001 Vespa made it easy withMade of black anodized 7075 T6 aluminum, it allows the mounting of Doppler chain rings. Multiple mounting holes allow compatibility with a large number of GRIMECA and BERNARDI rim models. This adapter has a 98mm inner diameter and a 11. 3mm offset. Designed to work with this 60 tooth or 68 tooth sprocket. Does not come with any mounting hardware.