Re: Shift kit and deraileur gears
I suppose you've prolly thought of this - but have ya checked sprocket alignment? I was just thinkin' if it's too far out and/or your real axle isn't straight, that would explain the twist to the teeth you described and I'd imagine they wouldn't have much strength laterally so that'd break 'em... but I'm just guessin' here *shrug*
What brand cassette is it Maxvision? Mebbe it's a bad 'un?