What he ^ said. Plus, if you do need to replace the wheels, check Craig's for good buys on replacement wheels. I got 2 new Alex wheels cheap from someone who bought them & they didn't fit his bike, then found no market for 27" wheels. You can also replace the steel Ashtabula crankset with a 3 piece, alloy, crankset by using an adaptor sold for BMX & other Schwinn type BB shells. Find a local bicycle Co-op to source any parts you may need. Enjoy the overhaul. Don