got one on trademe nz auction 751855727 light as a feather [think magnesium], can't find it now but had a titanium brake cam, think just an ally arm though [might've sold it]. never had the brake plate as such or if i did it's with another wheel the same in my xr200/pe frame [thingy]. Wheel has brake drum liner countersunk screwed into he hub. found a similar wheel pic of a production rm wheel and the external ribs on brake hub part are further apart [or closer sorry without looking--different anyway] so this one is 'trick' me thinks--hence the price lol. sorry typing one finger while having a cuppa, cheers. ps, had this [with a dt1/rt2 brake plate in my rt2--terrible i know.