As i'm not a bike nut i've done my best to measure the top tube and it comes in at 21". No idea what effective top tube is! More photos posted. I would consider shipping the bike.
Early 90's Dyna Tech Sentinel for sale. The bike has been in storage for a number of years and is being used at the moment. It is all-original with the same spec as when purchased from the local Raleigh shop here in Inverness. The only addition is Tioga Power Stud bar ends. It has not had a lot...