Originally Posted by T-Mar

Most of the indicators are pointing towards a PR10/PK10. The crankset is PR10 spec. The fork is also PR10. It's definitely not a UO8 fork based on the rake and the PA10 fork didn't have chromed blade ends. However, both cranksets and forks can be replaced and it's hard to imagine why a seller would claim it as a PA10 if it is something higher. It could even be a non-American market mode, which further complicates matters. In the end, just follow John E's advise and measure the seat post diameter. That will tell you if the main tubes are Reynolds 531 or hi-tensile steel.