Would love to hear from the folks in the know ....

I am riding an older Giant Innova which I bought in 1992 for about $500. It's a steel frame and it has been a great bike.

Over the years I've added adjustable steering bar, handle grips, bar ends, new seat & post, schwalbe flat proof tires. But the gears, brakes and cables are old.

Most of my riding is on light gravel trails and road and rides are anywhere between 20km - 150 km.

I was thinking that it would be nice to have a bike that was a little faster - but don't want to give up too much comfort.

OK - so here's the dilema. BUY NEW bike or buy new gears, brakes etc for my current bike?

Will adding newer parts to an older bike mess it up - or will they all work as well as with a new bike??

I'm a little apprehensive about going to an aluminum frame over the steel one I'm used to (in terms of comfortable ride)?

Any thoughts appreciated on this tough decision.