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Thread: Ducati 848 Rear Suspension Question

  1. #1
    Junior Member Novice amiller6786's Avatar
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    Ducati 848 Rear Suspension Question

    Hi Folks,

    I acquired an 848 EVO for racing purposes last year. I wasn't able to do much racing but I did get the bike to IMI a few times and discovered some rear end slop the last time I went out. You can feel the rear of the bike taking a set as you transition to full lean. I verified that something was actually happening back there by observing that the rear wheel assembly moves back and forth a few tenths when the bike is strapped down by the front tire in the trailer. After verifying everything was torqued down, I narrowed it down to either the wheel bearing hub assembly or the swingarm bearings. Has anyone whose had the pleasure of riding one of Ducati's famed single-sided swingarm machines ever experienced a similar sensation? If so, how did you get rid of it?

  2. #2
    Junior Member Novice amiller6786's Avatar
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    This is probably information already known to Ducati owners who race their bikes but I'll put the conclusion to this fun little adventure up here anyway: as it turns out the sprocket side axle nut has a tendency to work it's way loose in spite of the lock ring. That appears to have been the issue. Thankfully nothing catastrophic happened. The importance of having a healthy lock ring in place just became glaringly obvious. I might even start safety wiring the loop ends of the ring together.

  3. #3
    Senior Member Amateur Jim Brewer's Avatar
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    I'll have to say I've never had the sprocket nut work its way loose on either of my Ducs but maybe I've just been fortunate.

    The lock wire/ring on mine go through a slot on the castle nut, then into a hole in the spindle. The major problem I've seen is stands that use that hole pushing the wire/pin out of the hole. But so far, they seem to go back in ok.

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