A curiosity spotted at the wonderful Eirin Cycle Marutamachi store in Kyoto last week. A rather rare 3Rensho aluminium MTB converted to a single speed...
As with most things 3Rensho the details were way ahead of their time, the internal cable routing on the head tube for example...
For more information on all things 3Rensho check out the superb Vintage 3Rensho Love blog. Follow the Eirin Marutamachi store on their Instagram for more of this kind of thing.