Right so the plot thickens..
LBS Visited with bike today, and there as pissed as me. They undid the lock ring and there was a fair bit of swarf in there… off popped the smallest sprocket to reveal no splines on the free-hub body! All worn away !!!
LBS have and are still tying to sort it out with CB distributors 2Pure.
LBS also showed me the parts and I couldn’t quite get my head round why SRAM cover the “knurled / grooved” inner surface of the lock ring by a clip in stainless “washer”!
Anyone know why ?
Shimano lockring’s / cassettes click as there tightened, and stop it loosening. I.E no stainless washer.
I’m thinking that the lockring may have also come slightly loose and allowed the sprocket a bit of space, and allowed it to slip ?