size

Hi all. Just registered and very new to (read “totally ignorant”) 90s mountain bike sizing - so pls bear with. Have seen a lovely P7 I’m keen to bid on (pics below). The frame size is described as: “Seat tube - 19in (17.5 c-c), Top tube 56cm (c-c). I’m 5’7” with a 30” leg. Idea is to have a...

Hello! I'm restoring a 1994 Palisades Trail but it's missing a seatpost. I'm measuring 26.8 but Sheldon Brown's website says that 93-94 Palisades had "26.4 or 27.2?" seatposts. The 94 Marin catalogue I found only says that it had a Marin Lite seatpost, so I'm kind of confused. Does anyone know...