i´ve only bent lighter road forks, these finnish steel anchor forks are quite robust, could still be possible to bent 100kg guy doing endo.
there is disc on rear too.
bike rides like an railroad track, nowhere near 531
i´ve heard some sounds from rear on 32mm vittoria xn tubs, ergal with revo´s aint most strongest wheel, but no any sound with cypress EL. front mudguard extra gives some sound too with xn´s, on bumpy roads, extra weight and wind catches it. otherwise 7970/R785 marriage is rather nice