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Trek 5900 fork verse 5200 - What's the dif?(2 posts)

Trek 5900 fork verse 5200 - What's the dif?sntacruzSL
Aug 9, 2002 6:40 PM
Trek 5900 fork verse 5200 - What's the dif? What are the advantages of one over another? One seems to have more sweep over the other. Is this correct?

Thanks
re: Trek 5900 fork verse 5200 - What's the dif?gray8110
Aug 9, 2002 7:52 PM
First off, it's very important to mention that the Air Rail OD which all Trek bikes from 2200 up to 5500 use is completely incompatible with the 5900 as the Klein fork on the 5900 incompatible with any other bike. This is because the Klein fork has a tapered alloy steerer (1 1/8th at the top 1 3/8ths on bottom) to make the fork stiffer. The biggest advantage of the fork on the 5900 is the weight. It is more aero as well because of the bladed shape. The Air Rail is pretty heavy for a modern carbon fork but it has been around for a long time. I think it weighs in around 600gms where the fork on the 5900 is in the range of 300gms (I've seen claims that seem ridiculous to me that it weighs 290). The air rail uses the original OCLV technology circa 1997, the klein fork uses the same OCLV 110 fabric as the 5900. The Klein fork steers a lot quicker because of the straight blade and it's less forgiving for the same reason. Both forks are adequately stiff horizontally.

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