Honda ST1100 Section > "How To..." Instructions and Pics for Regular Maintenance Jobs specific to the ST1100...

Rear drive mod.

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tjmaskell:
Hi Guys, after reading countless posts on the problems associated with the ST1100 rear drive, I decided to have a go at maybe improving things somewhat. A post by Yorkie kind of got me thinking. The following is what I've done and I'm not suggesting anyone else try it but it's made a huge difference to my bike. First take the cush rubbers ,remove the aluminium insert and carefully clean the internal surface with your favorite solvent. Next coat the inside surface of the rubbers and the outside of the aluminium with hybrid polymer (I used a product called Fix All by Soudal ) (photo included) Reassemble, wipe off excess. Then place the cush rubbers back in the hub with generous polymer on the ends only. Then taking a small screwdriver coat the inside holes in the aluminium inserts with polymer. Coat the 5 posts on the drive flange as in the photo . Now do the usual o ring, grease etc. and reassemble. Place the wheel back on the bike and wait 24 hours. Go for a ride, wow I now have a virtual solid drive but retain the cush feature. No more skinny steel posts flogging around in the aluminium inserts. Its cured the '" take up"" that used to occur upon release of the clutch. Less backlash for sure. So whipped down to Philip Island and back about 4500 km in 7 days and decided to take a look . Out came the back wheel and everything was perfect. The drive flange can be removed by heating with a heat gun until its to hot to touch .The cush rubbers can be removed by cutting the polymer with a Stanley knife. Can't see any downside, so far so good and can always go back to how it was. Thanks Guys.

johnnyYTED:
 :dred11
laST year I replaced the cush rubbers after 150,000k's and it took up any lag I may have had. I didnt have any noticeable wear on the pins.All my drive splines were also good  :grin
 Not saying this polymer stuff  wouldnt benefit those with excessive wear though..  ;-*

Yorkie:
Sounds like the goods to me, I will certainly give it a try, be interesting to find out the results after 50k or so

tjmaskell:
Hi  Yorkie, it was your post regarding the solid rear drive on your 750 that prompted my curiosity as to an alternative  means of connecting the drive flange to the wheel on the ST. The setup I've tried is as close to solid as I think possible. It's actually " glued together " with rubberised glue, making a solid but flexible unit. I forgot to mention the wheel should be spun a few times to centralise everything prior to the 24 hour cure period. Cheers Trevor

Yorkie:
The issue is the rubbers compact, evidenced by the ease with which they can be removed however it is quite difficult to install when new, also the holes in the ali wear in an elongated fashion, all parts need to be fixed. wombat had an issue on Border Run in 2015, the nyloc on his rear axle was not holding which enabled the nut to come loose, on corners he thought a flat tyre however the movement was caused by the nut on the wheel, not the nut on the seat, his final drive flogged out, probably due to the number of times the wheel had been removed and replaced for tyres etc.

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