The GPX Accushift is somewhat more subdued with SunRace freewheels. Less klunk!!twang!! from the rear derailleur, compared with the original Suntour Alpha freewheels. It felt and sounded like the squared off teeth hung onto the chain for a split second, enough to stretch the RD spring a bit, then release it like a slingshot. With the SunRace freewheels you only hear the shifter click, while the RD is almost silent.

DA indexed downtube shifters sound like a percussion instrument on the early '90s Trek 5900 OCLV. klack!!bong!! Those fat carbon fiber tubes resonate nicely. So I named it the Noisy Cricket.