Michelin Pilot Road 5 GT - Page 6 - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #51 of 71 (permalink) Old 09-22-2019, 03:03 PM
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Quote:
Originally Posted by Red On Rockwell View Post

Mounted last Sept. And about 7K miles.

Main riding problem with mine is a handlebar shimmy for 49 -42 m.p.h.
At 7k miles you probably need to rebalance, unless you are about to replace the tires.

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post #52 of 71 (permalink) Old 09-22-2019, 09:54 PM
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And yes re-torqued steering bearing just before last trip.
In my experience once a wobble appears there is nothing to be done to adjust it out. It might temporarily go away with a new tire. It might only change the speed the wobble starts. Same for tweaking the bearing preload. Only cure is new bearings.

As for wheel balance the tire should not require rebalance in 7000 miles. I have more questions about the original balance. Spin balance machines can get out of whack that an inattentive operator won’t notice.
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post #53 of 71 (permalink) Old 09-22-2019, 10:24 PM Thread Starter
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Re-torquing actually raised the shimmy in speed in my case.

And only on deceleration.
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post #54 of 71 (permalink) Old 09-23-2019, 01:28 AM
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Originally Posted by Red On Rockwell View Post
Re-torquing actually raised the shimmy in speed in my case.

And only on deceleration.
Yes, tighter will increase the resonant frequency same as with a guitar string. The front wheel serves as the exciter so the issue is dependent on the rate the front wheel is rotating. If the front wheel is anything short of perfect it will source energy at the rotating frequency into the front suspension. The arm formed from steering stem to front wheel seems to be just right for oscillation at 40 MPH. The FJR is far from being the only one with this problem.

There is something about deceleration that brings out the worst of it.
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post #55 of 71 (permalink) Old 09-24-2019, 08:26 PM
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Just for fun, I was in my local Yamaha-only dealer today with my FJR's rear wheel getting a new PR4GT to replace the one on there with 13,000 miles or so and still some room left before the wear bars hit.
The manager told me Michelin had just last week assured her that they absolutely will continue to make and sell PR4GTs indefinitely.
This is of interest to them as they have a substantial FJR business there (there was a '15 coming in for a replacement set of PR4GTs while I was waiting on mine).

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post #56 of 71 (permalink) Old 09-28-2019, 05:07 PM
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Just sent in my info for the $50 rebate on the new pair of PR4GT's I bought. We'll see if I actually get the rebate card...

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post #57 of 71 (permalink) Old 09-28-2019, 05:25 PM Thread Starter
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https://www.revzilla.com/motorcycle/...oad-5-gt-tires

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post #58 of 71 (permalink) Old 09-28-2019, 05:57 PM
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Quote:
Originally Posted by Cherryriver View Post
The manager told me Michelin had just last week assured her that they absolutely will continue to make and sell PR4GTs indefinitely..
Hope this is true

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It doesn't matter what I ride, where I ride, or how far I ride... it only matters THAT I ride...every day. "Ferret"
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post #59 of 71 (permalink) Old 09-29-2019, 01:43 PM
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Quote:
Originally Posted by Red On Rockwell View Post
By golly they already have 101 reviews! (of the Road 5)

Clearly Revzilla doesn't believe the properties of an R5GT is going to be that different from R5.

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post #60 of 71 (permalink) Old 09-29-2019, 05:58 PM Thread Starter
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Does not make a difference.

But in support of Redfish's statements.

Revzilla is the one that told me that the Road 5 tires were rated for the FJR.

Thus my purchase of them.

2014 Yamaha FJR1300A

2013 Honda GL1800 Goldwing ABS

2004 Honda ST1300 ABS
Rest In Peace!!!!!!!!

2005 Honda GL1800 Goldwing

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1992 Honda ST1100

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