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Single Nut mod 4th gen

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Originally developed to mount a Ducati rear wheel on the Hawk GT, fits great on the 4th gen vfr. Using Hawk/Bros 650 parts has pro's and con's, depending on your point of view. Designed by Honda for the Hawk/Bros, the parts are smaller/lighter.


The smaller Cush drive has been known to withstand 80hp race Hawks ridden in full anger, and is 3lbs lighter than the stock vfr one. However, other than normal use and 1 track day, i have no idea how well it will hold up to 100hp.



The spindle is shorter due to the cush being smaller, so it is lighter by a little. The pic is deceiving, other than the extra shaft for the bigger cush they mic out the same in all shaft dimensions. The hawk rear rotor is 240mm vs the vfr 256mm, so lighter as well. Spindle and rotor = 2lbs lost. 




Combined with the custom rear caliper hanger and a Brembo or Berringer caliper, that assembly is lighter as well. So, several pounds of unsprung and rotating mass lost even before the wheel is factored in.




The old 3 spoke Brembo wheels bolt right up, the newer Marchesini's (small hole 5.5) need the bore opened by a mm or 2.

Wheel offset is off by 2.5mm, so a spacer between the wheel and hub would be required for dead center.




I used this setup to mount an nc35 rear wheel, as the drive pin PCD is the same for Duc/nc30/nc35/rc30/rs250/etc. I did need to use the nc30 inner axle as it is longer than the Hawk/Bros one.




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The Hawk/Bros spindle needs to have the drive pins moved.



and a outer spacer would be need to be addressed for the Duc wheel. nc30/nc35 wheels just use the nc spacer and nut.

For the Duc wheel offset, 2.5mm, a spacer is good, but 2.5mm is minimal.....




Sadly, the guy on the Hawk Forum who was making and selling these as kits is gone walkabout, so I post this as info only. I do not have/make these mods/parts to sell. The only part in production is the Caliper Hanger, which will NOT fit the stock vfr750 rotor (yet). wwresto.com does the hangers, he is also on vfr facetube groups. I have been trying to get him to do a hanger for my 5th gen for my delink.... no luck yet...

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