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Motorcycle Discussions => British Bikes => Topic started by: beemergb on May 21, 2023, 10:12:39 AM

Title: Triumph 650 twin unit gearbox outrigger bearing
Post by: beemergb on May 21, 2023, 10:12:39 AM

Hi folks , I am looking for parts to put a outrigger  bearing setup  behind the clutch , where there is now just a seal .Ive seen it many times and thought one day I will do that ! And now cant find it ! Can anybody out ther share there wisdom please ? Hope so

Title: Re: Triumph 650 twin unit gearbox support bearing
Post by: Rex on May 21, 2023, 12:30:20 PM

Why would you do that?

Title: Re: Triumph 650 twin unit gearbox support bearing
Post by: beemergb on May 21, 2023, 02:09:06 PM

To stop the gearbox mainshaft flexing when I give it stick and have probelms changing gear , and yes it does work , I did this on my Thruxton Bonni way back then , it worked a treat .

Title: Re: Triumph 650 twin unit gearbox support bearing
Post by: iansoady on May 21, 2023, 04:15:05 PM

Somebody on the fb unit 500/350 group is prposing similar and meeting the same response.

Title: Re: Triumph 650 twin unit gearbox outrigger bearing
Post by: Rex on May 22, 2023, 09:09:01 AM

How much stick would you have to give it to flex the mainshaft enough to cause gear-changing problems, especially as these engines have been used in all sorts of competition work for decades, and this mod isn't common or usual.
Sledge hammers and little tiny nuts?