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BDL lock up clutch

  • rock38
    rock38
    1 month
    Gday Guru,s
    I bort a twin cam R-King with a 107c.i and a bdl ball bearing lock up clutch in it…It has a pressure plate spring.
    I hav since rebuilt engine to a 124 , if anyone knows what these bdl clutches are good for h.p and torque wise plz share or shld i go Barnett strait off the bat ?
    Cheers All
    Rock.
  • Hilly
    Hilly
    1 month
    G'day rock, if the pack is in good order it should hold it no worries being of the centrifugal type, harder you rev it the harder it will hold.
  • speedzter
    speedzter
    1 month
    That's a good question, and I don't recall seeing an answer .
    Do you have a full BDL clutch setup, or just the Lockup ball bearing pressure plate ?


  • Hilly
    Hilly
    1 month
    I think I mixed up in my head what you have rock, is it this one?
    Screenshot_20250402-095415.png
  • rock38
    rock38
    1 month
    Yes that looks like it…I bort the bike with it installed already so I’m not 100% on the plates but the rest is the same…I’m not a web expert I struggled to find any info on the thing!!
    Cheers

  • speedzter
    speedzter
    1 month
    It makes quite a difference depending on what setup you have .
    A quick way to tell is to look at the clutch plate width .
    The full BDL clutch setup will handle a lot of power .

  • rock38
    rock38
    1 month
    I will check that out tonite when I get home thanks speedzter 
    Curious tho…do u think it will handle a R.P.I built s&s 124 ?
    I’m not gona b drag strip racing it but I do ride like a temporary resident at times !!!
  • Hilly
    Hilly
    1 month
    This is where my brain went when I first read your post......
    Screenshot_20250402-102640.png
  • speedzter
    speedzter
    1 month
    I am using just the BDL ball bearing lockup plate combined with a Barnett extra plate kevlar clutch.
    It handles my custom 120" no problems, but it is in a lighter Dyna .

  • rock38
    rock38
    1 month
    Yeh I’m hearing ya…I think I’ll go the Barnett route and keep that clutch for my dyna if it ever needs it also.
    Cheers for your feedback .
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