Nichols Flywheel Nut Set

$44.95

The stock flywheel retaining nut has shown a weakness in that it loosens up even when properly torqued and Loctited. This problem is frequent enough that Ducati has issued a service bulletin concerning the stock nut. Very often this has caused severe damage to the crankshaft and rather quickly causes irreparable damage to the splines of the crankshaft.

The stock nut is not "self locking" as it may appear to be. As a test, we purchased several of these nuts from two separate dealers. Without exception, every new unused nut could be threaded onto crankshafts (more than one crankshaft was used) without any resistance. Further inspection revealed that the threads of these brand new nuts are actually oversized. Checking the threads with a calibrated thread gauge showed that at least 25% of the thread depth was oversize. This is the primary reason the stock nuts come loose.

Our solution to this problem is to use two jam nuts in place of one large flange nut. This is the same method used on Ducati engines produced in the early 1990's. Most important is the fact that this method worked and it worked very well. We selected a medium alloy steel 4130. We heat-treat it which makes it stronger, tougher and more durable. We machine it ourselves so we can control the thread-size more precisely.

Whether your Ducati has the stock or an aftermarket flywheel, these nuts are a very worthwhile investment.


Instructions are available HERE

Make Model Years
bimota db 10 bimotard 2011 - 2011
bimota db11 2013 - 2013
bimota db4 1999 - 2001
bimota db5 2005 - 2011
bimota db5r 2006 - 2011
bimota db5s 2006 - 2006
bimota db6 delirio 2005 - 2011
bimota db6r 2007 - 2011
bimota db7 2007 - 2009
bimota db8 2010 - 2013
bimota db9 2011 - 2013
bimota dbx 2013 - 2013
bimota tesi 1990 - 1994
bimota tesi 2d 2005 - 2006
bimota tesi 3d 2007 - 2009
ducati 1098 2007 - 2008
ducati 1098r 2008 - 2009
ducati 1098s 2007 - 2008
ducati 1198 2009 - 2010
ducati 1198r 2010 - 2010
ducati 1198s 2009 - 2010
ducati 1198sp 2011 - 2011
ducati 748 1994 - 2002
ducati 748r 1999 - 2003
ducati 748s 1994 - 2002
ducati 749 2003 - 2006
ducati 749 dark 2004 - 2006
ducati 749r 2004 - 2006
ducati 749s 2003 - 2006
ducati 848 2008 - 2010
ducati 848 evo 2011 - 2013
ducati 851 1988 - 1991
ducati 888 1992 - 1993
ducati 907 i.e. 1991 - 1992
ducati 916 1994 - 1998
ducati 916s 1994 - 1998
ducati 996 1999 - 2002
ducati 996s 1999 - 2002
ducati 998 2002 - 2004
ducati 998r 2002 - 2004
ducati 998s 2002 - 2004
ducati 999 2003 - 2006
ducati 999r 2003 - 2006
ducati 999s 2003 - 2007
ducati desmosedici rr 2007 - 2008
ducati diavel 2011 - 2018
ducati diavel 1260 2019 - 2019
ducati diavel 1260 s 2019 - 2019
ducati diavel amg 2012 - 2013
ducati diavel carbon 2011 - 2018
ducati diavel cromo 2012 - 2012
ducati diavel strada 2013 - 2014
ducati gt1000 2007 - 2010
ducati gt1000 touring 2009 - 2009
ducati hypermotard 1100 2008 - 2009
ducati hypermotard 1100 evo 2010 - 2011
ducati hypermotard 1100 evo sp 2010 - 2012
ducati hypermotard 1100s 2008 - 2009
ducati hypermotard 796 2010 - 2012
ducati hypermotard 821 2013 - 2015
ducati hypermotard 821sp 2013 - 2015
ducati hypermotard 939 2016 - 2018
ducati hypermotard 939sp 2016 - 2018
ducati hypermotard 950 2019 - 2019
ducati hypermotard 950 sp 2019 - 2019
ducati hyperstrada 821 2013 - 2015
ducati hyperstrada 939 2016 - 2016
ducati mh900e 2001 - 2002
ducati monster 1000 2003 - 2005
ducati monster 1100 2009 - 2011
ducati monster 1100 diesel 2013 - 2013
ducati monster 1100 evo 2012 - 2013
ducati monster 1100s 2009 - 2011
ducati monster 1200 2014 - 2019
ducati monster 1200r 2016 - 2019
ducati monster 1200s 2014 - 2019
ducati monster 600 1994 - 2001
ducati monster 620 2002 - 2005
ducati monster 695 2007 - 2008
ducati monster 696 2008 - 2014
ducati monster 750 1996 - 2001
ducati monster 795 2009 - 2014
ducati monster 796 2009 - 2014
ducati monster 800 2003 - 2005
ducati monster 821 2015 - 2019
ducati monster 900 1993 - 2002
ducati monster s2r 1000 2006 - 2008
ducati monster s2r 800 2005 - 2007
ducati monster s4 2001 - 2003
ducati monster s4r 2004 - 2006
ducati monster s4rs 2006 - 2008
ducati monster s4rt 2007 - 2008
ducati multistrada 1000 2003 - 2006
ducati multistrada 1100 2007 - 2009
ducati multistrada 1100s 2007 - 2009
ducati multistrada 1200 2010 - 2017
ducati multistrada 1200 enduro 2016 - 2018
ducati multistrada 1200 granturismo 2013 - 2014
ducati multistrada 1200 pikes peak 2012 - 2017
ducati multistrada 1200s 2010 - 2017
ducati multistrada 1200s d air 2016 - 2017
ducati multistrada 1200s sport 2011 - 2012
ducati multistrada 1200s touring 2011 - 2014
ducati Multistrada 1260 enduro 2019 - 2019
ducati multistrada 620 2005 - 2006
ducati paso 906 1988 - 1990
ducati paul smart 1000le 2006 - 2006
ducati scrambler cafe racer 2017 - 2017
ducati scrambler classic 2015 - 2018
ducati scrambler desert sled 2017 - 2019
ducati scrambler flat track pro 2016 - 2016
ducati scrambler full throttle 2015 - 2019
ducati scrambler icon 2015 - 2019
ducati scrambler italia independent 2016 - 2016
ducati scrambler sixty2 2016 - 2019
ducati scrambler urban enduro 2015 - 2016
ducati sport 1000 2006 - 2008
ducati sport 1000s 2007 - 2009
ducati st2 1997 - 2003
ducati st3 2004 - 2007
ducati st3s 2006 - 2007
ducati st4 1999 - 2001
ducati st4s 2002 - 2005
ducati streetfighter 1098 2010 - 2012
ducati streetfighter 1098s 2010 - 2012
ducati streetfighter 848 2012 - 2015
ducati supermono 1993 - 1995
ducati supersport 1000 2003 - 2005
ducati supersport 1000ds 2006 - 2006
ducati supersport 600 1989 - 1999
ducati supersport 620 2003 - 2003
ducati supersport 750 1999 - 2002
ducati supersport 800 2003 - 2007
ducati supersport 900 1988 - 2003
ducati xdiavel 2016 - 2019
ducati xdiavel s 2016 - 2019

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Tags: Nichols, Flywheel, Nut, Set