Dynamic Shaft Drive Bicycle.  No chain.  8 speed internal rear hub Shimano shifter.   Disc brakes.  26" tires.  I purchased this in the early 2000's after seeing it in an airplane magazine.   Didn't really ride much until the last three years, and even then only about once a week.   At that time I replaced the tires which are still in great shape.   Bike is lightweight.  I'm 6' and 180 lbs and it fits me great.Note:  This is not a chain drive bike.  It has a drive shaft from the pedals to the rear hub.   It has a couple of grease fittings (recently serviced) and requires very little maintenance.   While I do not have the manual, I do have a PDF copy.On Jun-18-23 at 10:35:02 PDT, seller added the following information:Local pickup only