I rented my 2018 MT09 out this weekend. The customer complained the bike felt twitchy and said he felt the rear moving around. He claimed the the rear tire need replacing and the wear pattern isn’t right. There is something strange about the wear on the tire. 2500 miles on it. Notice the groove on both sides of the edge of the tire. Is this normal ? Thanks
Posted Jul 6, 2020, 4:18 AM UTC
It looks like it's just flat spotted? The junk on the fender looks like mud, not really burnout boogers.
Is it the right size tire for the bike? The edge profile looks weird but could just be the pic.
It’s the original tire that was on the bike when I bought it new from dealer. Should be right . You’re right , I checked, it’s just a bit of mud.
Right on. And is the center section down to or beyond the wear bars? Some tires do get a bit slippery when you get past the bars but if not I don't see anything wrong here other than a tire that's worn more on the center, which is common for a lot of bikes. I don't like riding tires like that, but it happens if I end up riding a lot of hwy on that set. You could also check the date code on the tires, If their more than 3 years old they could start getting slippery when pushed. There will be a circle/oval with a four digit date code on the sidewall.
In pic 3, is that shredded rubber up on the fender?
Not sure, will check tomorrow. Would shredded rubber on there be burnout evidence ?
Yup.
Maybe a combination of low pressure and not leaning often and/or deep enough? I cant think of any mechanical issue that would cause that. Other than maybe just a bad tire somehow.
Okay, firstly, like I say to everyone posting a picture like this, it’s very hard to get the whole story and no one hear can say for sure that it’s one thing or another. What I can say is something doesn’t look right and it’s something I’ve seen before. If I remember correctly it may be caused by over inflation making the centre of the tyre bulge more than the rigid sidewalls causing the bowing I seem to see. But regardless, if this bike is to be hired out anymore I’d be replacing that rear tyre and asking the shop what is happening in person.
I’m not sure what tyre that is from what’s left (Pirelli Diablo???) but check the recommended cold pressures and check what they tyres are on with a good gauge! Service station air pumps are notoriously all over the shot here, but able to inflate you within 5psi if you need it.
yeah i think this is an inflation issue that might have been exaggerated with some burnouts or perhaps an overly heavy rider or both
Looks like the edges are near cords. Tire needs to be replaced for sure.
Definitley strange wear. Someone been doing burnout?
This bike has been rented 3 times recently. I’ve never done a burnout on it. I don’t if those are pieces of rubber on the fender. I’ll check tomorrow. I guess that would be evidence of burnouts?
Interesting, maybe they over inflated it at the shop? Would be strange however, since that’s there one job to not f that up!
That's what happens when you rent out a performance bike...
82kw hasn’t been a performance bike since 1984.
Anything with a 0-60 time below 4 s is considered performance...
2001 R1150GS wants a word about its ‘performance bike’ status.
To me, a modern performance bike has to be capable of 1G acceleration. (0-100kph in 2.83)
There is some notes saying an MT-09 is capable of that acceleration but it’s very unclear and doesn’t seem to be listed anywhere.
It’s not designed to be a performance bike, it’s a great bike yes, but never intended to be a performance bike.
A bike doesn't need to have a top speed of 190 mph to be considered a performance bike. Having a 0-60 time below 4 s pretty much makes it a part of that category. At a 0-60 time below 3 s you get into the super performance category that stock performance cars can only dream of. It takes 920 lb-ft of torque and 588 hp at all wheels in a 4941 lb Tesla to get a 0-60 time of 2.3 s... The 2020 Corvette Stingray Z51's 2.8 s 0-60 time is admittedly impressive, but that's only since this year's model...