Nothing wrong with the Suntour GPX, one scratch on the rear 'rail. I have Shim 600 8-speed w/STI on another bike, and I like the narrow range cassette I have on it (few hills here). Not so w/the blue/gray GPX, which shifts smoother, but is hard to find a cassette w/narrow range cogs. No money would change hands, but I'd have to find front and rear hubs and a crankset on my dime. I've already found the crankset, and hubs are out there. Not sure I want to spend the $$ to move an Ironman Expert to "Master" components if the Suntour stuff can do the job. Thanks for the advice, all, and it's definitely appreciated.