Noob tire size question

Journeyman28778 said:

Yeah, I don't remember anyone having trouble with ABS due to a change- we're probably all staying under the allowable limits. But, no. No shop should charge any more to change to those tires.

I do my own, but that's another post.

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Journeyman28778 said:

Yeah, I don't remember anyone having trouble with ABS due to a change- we're probably all staying under the allowable limits. But, no. No shop should charge any more to change to those tires.

I do my own, but that's another post.

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Idaho Red Rocket 3 said:

Not that I've heard of.

The only thing is the ABS needs to be kept withing a certain percentage of the rotational difference. I think these size differences such as the Bridgstone 55 rear and any 75 front are ok within that spec.

@1olbull can confirm.

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1olbull said:

Indeed Mr. Bill, bringing the rear axle up ½" with the 240/55R16 aspect ratio and the front axle down ½" with the 140/75R17 or better yet, the 150/70R17 Road 5 or 6, is the perfect setup for handling in my 11 years of Rocket Roadsters hooning.

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shazaam said:

Is the 150/70 R17 a rear tire? The websites which I usually check prices on are listing it as a rear tire. Just curious.

Michelin Road 6 Tire

Road 6 Tire

www.gpbikes.com

Michelin Road 5 Tire

Road 5 Tire

www.gpbikes.com

What Im also curious about is how much of a difference the W vs the V load speed rating makes.

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Stillserving said:

I have run the
Bridgestone Exedra 240/55/R16
Michelin Road 5 150/70/ZR17 (mounted backwards)
combo last 3 tire changes and swear by it. I also went up 1/2" on the shock size when I went to the 444's., which increase the front bias a little more. No issues at all w/ ABS. I will never go to anything else. (Well, never is a strong word, but it would take some serious convincing to switch.)

Just to help a little on figuring tire size:
(Going with the front tire as a reference)
First number is width in mm
Second is aspect ratio (percentage of the width between the ground and the rim) - 70 (so, 70% 0f 150 mm is 105mm)
Next is rim size 17"
last is the speed rating
so... 150mm wide, 105mm from ground to rim and the rim size is 17"

should be no reason to charge anything different to mount any of the above mentioned tires, although I always mount my own ,so I can't say for certain.

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1olbull said:

Good move on the tire changes!
I really like your extending the rear shock length by ½". Does reduce rake/trail a tad more. My inseam just won't handle the increase in seat height.
BTW - Today was the first time I was interested enough looked into the newer R3s. I was disappointed to see they stayed with the same size wheels & tires , but pleased to see they reduced rake by 4.1° and reduced trail by .49".
This must improve handling over the Roadster, but I wonder what a ExedraMax 240/55R16 & a Road 6 150/70R17 run reverse would do?????

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