These air shafts are new, but not new at the same time. These were removed from brand new forks and have never been used. We change the travel on Fox forks free of charge for customers who request a travel that Fox does not offer from the factory, so we often have some leftover air shafts from these travel changes. If you&';re looking to increase or decrease the travel in your 2018+ Fox Float 34 Rhythm or Marzocchi Bomber Z2 fork, then just snag an air shaft and swap it out in your fork! Fits Fox 34 Rhythm & Marzocchi Bomber Z2 forks. Includes a new spring retainer clip, but does not include crush washers. *NOTE* - This air shaft is not compatible with a standard Fox 34 or an e-optimized Bomber Z2.