Zeus is a Spanish company that made everything for a bike. They made all componets plus lugs , fork crown Very good company with very good parts.

The gear ratios you mention are very good choice to use.

There are tires that are in the $25 - $40 range for racing. I have seen your track when I lived in Washington. World Class Cycles have discounts for multiple tires. http://www.worldclasscycles.com/

170s should be good for you to ride. Try it out first before committing. some body can lend you a pair.


Good luck and have fun.

S.F,
CEYA!