I´ve had only one plastic steering knuckle strip the lower kingpin threads, but that is the only breakage for me after about 7 days running with modified. We do run with cornerdots here but still I´ve got some serious airtime and hard hits without problems. Actually I broke a top deck from a friends BD7, but that doesn´t count, right?
I think that the BD7 might be even a bit more durable than the TRF rides I´ve been running in the past.