<-=- Club Bevel Heaven -=->

If the sprag is on the way out you'll have lots of sparkly bits in the engine oil. These will go round the oilways and 1) take out all your roller bearings and 2) confuse your pick ups with slivers of old bearing forming "whiskers" around the pick ups rather like the magnetic sump plugs do.
The ...

Here in the uk there seem to be two ways to go:-
1. Using available second hand ducati parts 17" 907ie rear wheel disc and sprocket carrier, 907ie caliper 900ss caliper carrier, 39 tooth sprocket.
Front wheel 17" 750/900ss, goldline calipers upwards, Honda Fireblade dics and carriers (Or Yam FZR ...