Ross gran tour
 

I have a ROSS GRAN TOUR 28" Woman Bike in my storage. It was given to me by a friend a long time ago. I seldom use that bike. I would like to find out more info about it. How? How can I get the original manual? It rides very smooth and light.
I want to find out how to take care of it and maintain. I really would like to use for commuting.

ROSS WOMAN BIKE (Year ?)
Gran Tour, Tange, Fork Blade, Hi-Tensile (SN:0785045162)
Frame: 4130 Chrome Moly Tubing
Breaks: Shimano
Speed Shift Levers: Shimano Z401
Chainring and cranks: Sugino No.6
Seat: Raleigh
Wheel: Ross 700 x 280 (28 x 1 5/8 x 1 1/8)

Thanks,


Zerrin