Becuase i havent used 40s. I used to run marzocchis and dave & co asked me how they compared to my new boxxers. And anything can be expensive .. unless you know people
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But to answer your question, my dad runs 40's and they are very nice forks. They do feel a little burly but thats not a bad thing. The adjustment on the forks (high & low speed compression, preload and rebound) allow the forks to be adjusted easily and be set to what ever preference the rider wants.