Asymmetrical front tire wear

[Kiwicol]

ok so,
Since I have never had this wear on any of my other motorcycles (Harley, Ducati, Speed Triple etc.), I will favor the explanation provided by users of another forum: "this asymmetrical wear is well known to owners of old or new Rocket versions, it is due to the longitudinal engine architecture and the balance wheel"

Ok, so you're happy with the above explanation. But, if it were really the case, why don't all Rockets get this same wear pattern then? They all have the same engine arrangement, so it should affect all of them if this were the real reason, but it doesn't.
I think you should consider other alternatives to find the real reason, but that's just me, you're happy with the explanation given, so that's all that matters.

 

[RUN666]

You are absolutely right and, even if this explanation seems logical to me, if the other Rockets apparently do not have this problem it is because my bike has another problem... I just went to measure the gap between the disc hoop and the fork bottoms and there is a 5mm offset between the left and the right! Which would explain this asymmetrical wear... I will remove my wheel soon to change the tires and take a closer look at this problem because, apparently, according to the nomenclature of the original parts the shims are identical on both sides. I will keep you informed so that the whole forum can benefit.

 

[atomsplitter]

You are absolutely right and, even if this explanation seems logical to me, if the other Rockets apparently do not have this problem it is because my bike has another problem... I just went to measure the gap between the disc hoop and the fork bottoms and there is a 5mm offset between the left and the right! Which would explain this asymmetrical wear... I will remove my wheel soon to change the tires and take a closer look at this problem because, apparently, according to the nomenclature of the original parts the shims are identical on both sides. I will keep you informed so that the whole forum can benefit.

I saw on a different forum where someone over torqued a front axle and crushed one of the spacers. That is probably not the case here, but a wrong spacer could be an issue.

 

[RUN666]

Given that the bike comes from the Triumph dealership, did they fit the wrong part or make a mistake during assembly then !

 

[atomsplitter]

Given that the bike comes from the Triumph dealership, did they fit the wrong part or make a mistake during assembly then !

Don't know it's either case, but if the front wheel is offset between fork legs there has to be a reason. The spacers (8 in diagram) for the front wheel, part# T2000227, are the same on both sides. You might take a caliper and measure both spacers when you pull the front wheel to verify.

 

[RUN666]

Yes, I also saw that the two spacers were identical on the original parts list and I will do it soon because, as the front tire has exceeded the wear mark on the right ...I will have to change it!