Good luck with the bike , i have an old red vanquish i use for commuting / winter rides and it does about 4000 + miles a year so they are more than capable .
With regards fit assuming you can comfortably set your saddle height and get your reach comfortable then it should be ok , i have to use an 80 mm stem on the above bike to get it to suit me .
Here is a basic fit website .
http://www.jimlangley.net/crank/bikefit.html
saddle height .
Leg straight with heel on pedal = right when foot on pedal .
Saddle set back , Knee over pedal centre
Reach to bars
Stem Length
Instructions
This is a rough guide to finding the correct stem length, it is by no means the most scientific method but will give you a good indication of the stem length that best suits your needs. The #1 rule while sizing for a stem is, MAKE SURE YOUR COMFORTABLE! Choosing a stem comes down to personal choice and riding style, therefore it is important that you are comfortable whilst riding. If you are struggling to choose a stem length, please see the chart below for our recommendation.
- Get on your bike and place your hands on the top of the lever hoods.
- Look down and sight the front hub through your handlebars.
- Your handlebars should completely hide the front hub indicating the correct stem length (see figure B above).
- If the front hub appears behind the handlebars, the stem is too long and you will require a shorter stem (see figure A above).
- If the front hub appears in front of the handlebars, the stem is too short and you will require a longer stem (see figure C above).