Shimano Positron II Rear Derailleur NOS | Sell - Trade: Bicycle Parts, Accessories, Ephemera | The Classic and Antique Bicycle Exchange
Shimano-Road - In picture: Derailleur POSITRON ll. To develop safe, reliable and easy-to-operate shifting systems for any cyclist, Shimano announced POSITRON in 1974. This rear derailleur is equipped with an index system
![NOS Shifter Internal Gear 3 Speed PPS SHIMANO Positron Japan 135cm Length for Vintage Bicycle City Bike Mountain Bike Free Shipping - Etsy Denmark NOS Shifter Internal Gear 3 Speed PPS SHIMANO Positron Japan 135cm Length for Vintage Bicycle City Bike Mountain Bike Free Shipping - Etsy Denmark](https://i.etsystatic.com/17175671/r/il/a969e8/5089002708/il_570xN.5089002708_bcad.jpg)