IN the Charterhouse specialist auction of classic and vintage motorcycles on Wednesday, June 29, is a rare 1920’s French San-Sou-Pap motorcycle.

Charterhouse's Richard Bromell said: "We have been asked to auction a vast variety of classic and vintage motorbikes in the auction.

“There are British, American, German, Italian and Japanese bikes, but this chic French San-Sou-Pap ticks all the boxes for me.”

San-Sou-Pap motorcycles were made in France from 1923 to 1936.

Originally the company made only two strokes – San-Sou-Pap means without valves.

The 1929 San-Sou-Pap at Charterhouse is believed to be a unique bike and is fitted with a Swiss made 500cc MAG four stroke engine.

It was bought by the owner in 2012.

He undertook a fastidious nut and bolt restoration over the next two years but has not ridden it after finishing the restoration.

Entered into the Charterhouse auction, being held at the Haynes International Motor Museum at Sparkford on Wednesday, June 29, it is estimated at £15,000 to £17,000.

Viewing is the previous day (Tuesday, June 28) or you can see all the lots and bid live on

Richard Bromell and the team at Charterhouse can be contacted for advice and valuations on motorcycles at The Long Street Salerooms, Sherborne, on 01935 812277, or via