Marin Attack Trail – started off as a 2001 single pivot:
4 have cracked around the bottom bracket / main pivot, 3 caught as cracks , only one actually snapped on the trail.
2 cracked on the seat tube stub, at the weld below the seat clamp
1 on the swing arm between the caliper mounts.
All replaced, no quibble, under warranty. Only one took more than a week, and one took less than 24 hours.
Marin/ATB sales warranty department may be better than the R & D dept…
Pipedream Sirius snapped the chainstay.