Yes they are fiberglass along with the gas tank I believe. If you read the test of the Tiger 500 on 3ww it has some of the accessories you could get for a Tiger and they were lighting kits, air box and handle bar mounted gas tank. They also said that one tiger can differ from the next because as soon as they came up with a better design they'd change immediatly. Maybe thats why there is that one picture of the handlebar mounted radiator and all of the rest have them infront of the riders leg. The guy who won the auction for the 3 Tigers said they are all liquid cooled, even though the 125 has air cooling fins its still liquid, thats the first time I've ever seen that.