The fork on my Gary Fisher Nirvana is a Bontrager carbon fork my local bike shop got for me and installed. I also recently had them replace the drive system which was starting to show the miles. I up-graded the crank assembly with a Deore set with slightly longer arms, and slightly lower gearing up front, with a new front Deore LX derailure. I also replaced the chain and cassette in the rear. I also replaced the tires with a set of Bontrager 700 X 32 tires. What a difference the tires made!
I'm probably going to replace my wheels on the Nirvana with the Bontrager Select wheels that are on my Trek Pilot 2.1,(that's getting a set of Bontrager Race Lite wheels).
Don