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Author Topic: Q4 Tire Wear  (Read 1528 times)

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robmunach

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Q4 Tire Wear
« on: September 14, 2019, 02:04:37 PM »

I have a 2006 CBR600RR in intermediate group. Put Q4's on it last September. Have done one day at NC Bike and two at VIR North with the second day only being about 50% due to rain and red flags.
My rear tire is down to the wear bars (see attached pic) . The front is fine. I always use tire warmers and usually run 29 PSI. Is this tire toast? If so, WTF?
I figured I could get at least 6 days out of 'em.
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N

RocketDan

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Re: Q4 Tire Wear
« Reply #1 on: September 14, 2019, 02:24:28 PM »

Tire wear looks OK to me so I don’t think it’s tire pressure. But would need to see in person to give a better opinion. I think it has some life left in it. But it’s nearing the end.

Your pace is going to be a big factor in how long tires last. If you are starting to get faster then your tires will start wearing out faster. And rear tires wear faster than the fronts.

You can flip your tires to get more life out of them. Most tracks are clockwise so the right side of the tire wears quicker. Once the right side starts to get worn down, if the left is looking better, you can flip it so the better side gets used too.


Daniel
OTP Racing #14
Yamaha R1
Wilmington, NC
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robmunach

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Re: Q4 Tire Wear
« Reply #2 on: September 14, 2019, 04:27:36 PM »

Thanks Dan.
I feel like it has one more track day in it. Not sure it will make it through tech, however.
I am not sure Q4's are bi-directional. I will have to check.
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N

52 Ruhe

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Re: Q4 Tire Wear
« Reply #3 on: September 14, 2019, 04:33:08 PM »

I don’t mean to be the buzz kill because cannot honestly from pics tell actual depth.

Looks thin but a side shot with good ole penny in the grove I can tell ya.


Sent from Spinak’s samsuck phone
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Mike Ruhe #52

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robmunach

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Re: Q4 Tire Wear
« Reply #4 on: September 14, 2019, 07:05:08 PM »

Won't be back to the garage for a week or so, but will get a pic then.
Thanks!
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N

jsnonzzr

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Re: Q4 Tire Wear
« Reply #5 on: September 16, 2019, 04:06:50 PM »

Thanks Dan.
I feel like it has one more track day in it. Not sure it will make it through tech, however.
I am not sure Q4's are bi-directional. I will have to check.

I think just about all tires are not bi-directional per the manufacturer.  From my understanding this has more to do with the tread block and rain then it does with the idea that a tire will de-laminate and fall apart because its ran backwards.   I am slow so I usually kill a tire in the center before the sides, so its not a problem for me to have to consider.
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lee7

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Re: Q4 Tire Wear
« Reply #6 on: September 18, 2019, 04:29:23 PM »

That wear rate seems pretty normal to me, I would get 2-3 track days at the most before being down to the wear bars, riding in novice on the Q4s. I loved the grip but the lifespan wasn’t worth it at all for me.

I then switched to slicks (sc1s) and my god I’ve been on the same pair for half the season (4 days of road atl, and 2.5 days of north). If your bike is track only, switch to slicks, more grip and more life!!


Sent from my iPhone using Tapatalk
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2012 R6 #337
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robmunach

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Re: Q4 Tire Wear
« Reply #7 on: September 22, 2019, 09:30:08 AM »

More pics...
I'd love to get one more day out this tire.
How would a slick work mixed with the existing Q4 front?
How about a Q3+ rear mixed with the Q4?

Thanks
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N

lee7

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Re: Q4 Tire Wear
« Reply #8 on: September 22, 2019, 07:19:31 PM »

Considering it is at the wear bar, Im not sure if it would pass tech, one of the CR's would have have to comment on that. Ive heard of people runnin the Q4 well past the wear bar but I have no personal experience in doing that, I always switched them out once they hit the wear bar.

I think you would have no issues running a Q3/Q4 mix and prob wouldnt have any issues running a Dunlop slick as well, I think Wayland does that all the time
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2012 R6 #337
2018 Street Triple RS

Greater love hath no man than this, that a man lay down his life for his friend.

52 Ruhe

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Re: Q4 Tire Wear
« Reply #9 on: September 22, 2019, 11:54:11 PM »

That’s a negative. That tire is done. Sorry


Sent from Spinak’s samsuck phone
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Mike Ruhe #52

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robmunach

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Re: Q4 Tire Wear
« Reply #10 on: September 23, 2019, 05:15:45 AM »

Thanks y'all.
Looks like a new rear is in my near future.
i'm thinking a slick as opposed to a q3 as I would rather low side than high-side.
Does that make any sense! ?
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N

robmunach

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Re: Q4 Tire Wear
« Reply #11 on: September 23, 2019, 05:26:57 AM »

Hmm, looks like i can't just go to my local dealer and buy a slick.
Is there gonna be a dunlop guy at VIR Monday?
If so, do they usually have time to swap a tire out early in the morning?


Thanks
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N

Shoaf

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Re: Q4 Tire Wear
« Reply #12 on: September 23, 2019, 05:49:44 AM »

Max speed cycles is at all PRE events with a good supply of dunlop tires both at the track and at their location in kernersville NC.
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52 Ruhe

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Re: Q4 Tire Wear
« Reply #13 on: September 23, 2019, 07:00:55 AM »

i'm thinking a slick as opposed to a q3 as I would rather low side than high-side.
Does that make any sense! ?

No sorry it doesn’t you can accomplish low or high side on any tire. Usually not the rubbers fault.

See you Monday. Seriously it might be a good idea to call Jim and get your name on a tire.


Sent from Spinak’s samsuck phone
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Mike Ruhe #52

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www.ridepre.com

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robmunach

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Re: Q4 Tire Wear
« Reply #14 on: September 23, 2019, 08:22:09 AM »

I really appreciate everyone's advice.
I think I am simply going to put a Q4 back on there.

1) I can get one from my local dealer today and mount it one evening this wee
2) No having to stress about  getting one mounted Monday a.m. = sleep in!
3) Might be selling the bike this winter so less $ invested is better. Also might be easier to sell with two similar tires.
4) Will go with full slicks on the next go 'round if i keep it as the front and rear oughtta be toast at the same time

See ya monday!
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Rob Munach
#396 2006 CBR600RR
1999 VFR800
2006 SV650N
 

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