Not just CF. Many of the MB's these days use aluminum alloys to get the weight down and then they need to add shocks to help with the impact. My old MB has a Cro-Moly frame and parts that were high-end 20 years ago -- they're still fairly high-end parts. If you choose to get a bike, buy quality. If money is an issue, buy a quality used bike rather than a new bike that will never get that old.