Do many sport bike riders change all the fairings and gas tank to give the bike a brand new look? Thank you.?

It would cost to much money to change all of the parts.

The gas tank alone costs over $600

The fairings cost over $1500

Instead of buying a new gas tank if it needed one,

owners would install a "tank bra"

A tank bra is a leather cover, specifically made for each bike, for a perfect, form fitting cover.

(scroll down to see them on a gas tank)

http://www.ebay.com/bhp/motorcycle-tank-bra

As for the fairings, they would probably only replace the damaged pieces.

OR cover the damage areas with new decals, or stickers.

Some do.

The vast majority don't.

No - hardly ever

Some might.

But more will replace those parts when they have had an accident (and some will then sell the bike on).

Not being original bodywork will/should reduce the re-sale value of a bike. Especially if the replacement bodywork is cheap Chinese fibreglass that has been lashed together.

The fairings do not cost that much if you get chinese fairings and that's where a lot of motorcycle parts our made anyways. See this guys bike it has chinese fairings and it looks awesome. You can get them for like $390