140 Front Tire

[tails]

the tyre change makes a hell of a differance.
recommended.

 

[Troy]

That is great to hear! I just replaced my rear with the Bridgestone and loved it. That was at 4100 miles, and now at 4900 miles I'm having to replace my front tire! I guess a spirited ride on the Talahina scenic road is a little too much for the Metzler! Per everyone's recommendation I have the Avon Cobra 140 coming!! In my defense I was chasing down a Busa, and did!! Although he was not really good in the corners.

 

[EasTexRIII]

That is great to hear! I just replaced my rear with the Bridgestone and loved it. That was at 4100 miles, and now at 4900 miles I'm having to replace my front tire! I guess a spirited ride on the Talahina scenic road is a little too much for the Metzler! Per everyone's recommendation I have the Avon Cobra 140 coming!! In my defense I was chasing down a Busa, and did!! Although he was not really good in the corners.

It sure will feel better to get rid of the cupping on that tire foe sho!

 

[JohnsoD]

Love this avon set up. thank you all

 

[Allan S]

No, and it'll work with the larger Excedra Max rear.

I also want to change to 140 front and a 240/55 Excedra Max rear as per the chart for my 2016 Roadster. In that chart it shows that the difference will be 6.1% (-3.9+2.2)and that the tolerance for ABS is 6% - is that number (6%) exact or do you need to be lucky not to have a fault. Also the Avon cobra I can get is 140/75 but the chart shows an aspect of 80, is that a material difference?

 

[EasTexRIII]

I also want to change to 140 front and a 240/55 Excedra Max rear as per the chart for my 2016 Roadster. In that chart it shows that the difference will be 6.1% (-3.9+2.2)and that the tolerance for ABS is 6% - is that number (6%) exact or do you need to be lucky not to have a fault. Also the Avon cobra I can get is 140/75 but the chart shows an aspect of 80, is that a material difference?

Yes, It is a 140/75
And no one that has moved to the 140 has had any issues with ABS

 

[BillyIndiana]

I apologize if this has been covered before. Actually I know it has because I read it a few times. I would also like to thank the Captains that posted about this changes as I would not have tried this without the information I read here. I replaced the front OEM Metzler 150 with an Avon Cobra 140 this weekend. After reading a few post on here about the difference the tire size made I gave it a shot. Afterall I am willing to try new things. Especially with the vast knowledge and experience from so many of the captains I follow here.

The first thing I noticed is how well it maneuvers at low speeds. The bike feels lighter at low speeds.Very easy to move around, backing up seems somewhat easier. The bigger tire made me use more effort, I did not notice this until I used the smaller tire.

I was having a low speed head shake at around 42 MPH when decelerating, or when I downshifted into 3rd and let off the throttle and had a light grip or no hands. It drove me nuts. That is completely gone.

Low to medium speed corners are effortless now. Taking off ramps between 45-60 was sometimes a chore. I had to use more body weight to get into those turns. Alos I had very little confidence in the bike as I felt I had to push it to turn fast and I would often feel I had to lift to soon. With the 140 Cobra I feel there is less effort and I can keep my body positioned more to center and at higher speeds into the same corners or offramps. I hit a ramp at 68 MPH that I would normally hit around 55 MPH. I had more confidence and less effort into the same corner.

The original Metz lasted 13,250 miles but it was cupped pretty bad. This is a great upgrade in my opinion.

Thanks again,

Rick

So since you changed over to a 140 in April how about an update to this post Rick.

 

[1olbull]

I also want to change to 140 front and a 240/55 Excedra Max rear as per the chart for my 2016 Roadster. In that chart it shows that the difference will be 6.1% (-3.9+2.2)and that the tolerance for ABS is 6% - is that number (6%) exact or do you need to be lucky not to have a fault. Also the Avon cobra I can get is 140/75 but the chart shows an aspect of 80, is that a material difference?

Allan,
The following charts I created should help explain everything to you.
The OEM tire size circumference difference (R-F/R) is -3.9%
The 140/75F and 240/55R tire size circumference difference (R-F/R) is +1.3%
The total % circumference difference is then 5.2% - this is close to the estimated ECU ABS fault limit of 6%.
I know for a fact that a 130/80F with a 240/55R faults the ABS.
This tire size combination provides a circumference difference (R-F/R) of +4.6%.
Combined with the OEM difference of -3.9%, it equates to a total difference of 8.5%.
So then the actual ECU fault for the ABS is somewhere between 6% and 8.5%.
Hope this helps!

 

[Allan S]

Allan,
The following charts I created should help explain everything to you.
The OEM tire size circumference difference (R-F/R) is -3.9%
The 140/75F and 240/55R tire size circumference difference (R-F/R) is +1.3%
The total % circumference difference is then 5.2% - this is close to the estimated ECU ABS fault limit of 6%.
I know for a fact that a 130/80F with a 240/55R faults the ABS.
This tire size combination provides a circumference difference (R-F/R) of +4.6%.
Combined with the OEM difference of -3.9%, it equates to a total difference of 8.5%.
So then the actual ECU fault for the ABS is somewhere between 6% and 8.5%.
Hope this helps!

Thank you! Thats fantastic information!

 

[2012cliff]

I put a 130 on the front of my touring. Its a different bike. Even better than stock.
I LOVE IT.