Shinko 777 tires for my 2017 CB1100ex

[Lord Popgun]

Sounds like it is rubbing somewhere. I suggest you go look closely before you have a tire failure.

[Chuckk_imp]

Sounds like it is rubbing somewhere. I suggest you go look closely before you have a tire failure.

jack up the front wheel a little and rotate the tire.. look and listen for rubbing ..

[GoldOxide_imp]

Had an over-sized rear tire once. Rubbing caused black soot and shavings. The rubbing tire wall side was also significantly warmer than the other side. Beware and take care [of it].

[pekingduck]

Hello duck,
I just bought my 2017 ex and it came with a new Shinko 110/90 on the front and I have noticed every time I ride the front fender is covered with a fine black dust. I am wondering if the slightly larger tire is the cause or this is normal even with the 110/80?
Thanks,
Rossi
[/quote]
Hi Rossi,
I couldn't find any diameter specs on Shinko tires, but Bridgestone has specs on their popular front BT-45 tires:
110/80-18 - 630mm dia.
110/90-18 - 655mm dia.

So that's a difference 25mm, just shy of an inch, which means 1/2" closer to the fender, not figuring in the expansion from centrifugal force as the tire spins. Dimensions differ by brand, and even different models within the same brand, but this gives you an idea what could happen.

The black specs you are seeing may not be rubber dust, but more likely brake pad dust that is a very common complaint. Remember that it is abrasive material, so don't just wipe it off dry, use warm soapy water and a brush.

And Chuckk
A 120/90-18 - 673mm adds another 3/8" on top of that, so maybe 7/8" taller under the fender.

[Chuckk_imp]

Hello duck,
I just bought my 2017 ex and it came with a new Shinko 110/90 on the front and I have noticed every time I ride the front fender is covered with a fine black dust. I am wondering if the slightly larger tire is the cause or this is normal even with the 110/80?
Thanks,
Rossi

Hi Rossi,
I couldn't find any diameter specs on Shinko tires, but Bridgestone has specs on their popular front BT-45 tires:
110/80-18 - 630mm dia.
110/90-18 - 655mm dia.

So that's a difference 25mm, just shy of an inch, which means 1/2" closer to the fender, not figuring in the expansion from centrifugal force as the tire spins. Dimensions differ by brand, and even different models within the same brand, but this gives you an idea what could happen.

The black specs you are seeing may not be rubber dust, but more likely brake pad dust that is a very common complaint. Remember that it is abrasive material, so don't just wipe it off dry, use warm soapy water and a brush.

And Chuckk
A 120/90-18 - 673mm adds another 3/8" on top of that, so maybe 7/8" taller under the fender.
[/quote] Hello duck,
I just bought my 2017 ex and it came with a new Shinko 110/90 on the front and I have noticed every time I ride the front fender is covered with a fine black dust. I am wondering if the slightly larger tire is the cause or this is normal even with the 110/80?
Thanks,
Rossi Hi Rossi,
I couldn't find any diameter specs on Shinko tires, but Bridgestone has specs on their popular front BT-45 tires:
110/80-18 - 630mm dia.
110/90-18 - 655mm dia.

So that's a difference 25mm, just shy of an inch, which means 1/2" closer to the fender, not figuring in the expansion from centrifugal force as the tire spins. Dimensions differ by brand, and even different models within the same brand, but this gives you an idea what could happen.

The black specs you are seeing may not be rubber dust, but more likely brake pad dust that is a very common complaint. Remember that it is abrasive material, so don't just wipe it off dry, use warm soapy water and a brush.

And Chuckk
A 120/90-18 - 673mm adds another 3/8" on top of that, so maybe 7/8" taller under the fender.
[/quote]
thanks duck, for the info.. that helps me with my tire choices.. right now I am still running the stock tires.. Rossi is the one with the immediate black dust problem.. I find Both of your comments helpful.. yours and Rossi's ..
now I am thinking about sealing my spoked rims and dumping those tubes .. Chuckk j.

[DBM_imp]

I just replaced my front tire at 4000 miles with a exact copy of the original Bridgestone Battleaxe BT54. Why would you use anything other than what the engineers spec'd for your bike? They know best, and are way smarter than any of us blokes.

[Chuckk_imp]

I just replaced my front tire at 4000 miles with a exact copy of the original Bridgestone Battleaxe BT54. Why would you use anything other than what the engineers spec'd for your bike? They know best, and are way smarter than any of us blokes.

that is true.. they know best.. my reason for going just a little bit larger is only for looks.. I like wider tires.. what can I say.. if I can go just a wee bit larger front and rear without causing any disastrous affects why not.. I can appreciate the good handling of my little CB and don't want that to change.. if I notice any changes with larger tires, I will move back to stock sizes..
Chuckk j.

[Cormanus]

DBM, the very low mileage one gets on the BT54 from tyre is a good reason not to use them, at least in my opinion. However, I agreed that using the tyre size recommended by the manufacturer is a good plan. Except ... it’s been a real problem finding alternatives in the correct size.

I’m trying Bridgestone T31s at the moment, but I gather you can’t get the rear in the right size in the US. I simply can’t understand why, given the relative size of the markets, you can get a tyre in Australia that you can’t get in the US.

[Houtman_imp]

I just replaced my front tire at 4000 miles with a exact copy of the original Bridgestone Battleaxe BT54. Why would you use anything other than what the engineers spec'd for your bike? They know best, and are way smarter than any of us blokes.

Cost of the OEM tires is something the Honda people have to think about when picking a tire for a bike like ours. When replacing your tire you might look for a better one even if they are more expensive.

[pekingduck]

Chuckk, both rims on the 2017 CB1100EX have inner bead lips similar to those on tubeless cast rims that may help retain the tire on the rim. Don't know that they are identical or will function the same, so proceed at your own risk.