After John Penton and KTM started their relationship with the 125 ISDT Six Days, the two companies expanded their relationship to cover multiple displacements. The Penton Berkshire was the smallest at 100cc.
For more on the Penton/KTM relationship, check out this article from KTM themselves. This specific Berkshire has had a ‘lite restoration’ where only the frame, wheel hubs, and pipe were painted. Everything else was just cleaned or polished. The engine got a top end job on the standard bore, and that seems to be the extent of the work.
Find this Penton Berkshire for sale here on Craigslist in Westminster, Maryland for $2,700.
This bike-uriousity brought to you by Jim R!