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Old August 28th, 2017, 03:09 AM   #81
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So, as I mentioned a while back, here in NZ our rules have opened up from this month to any readily available (ie imported by the official importer) DOT spec tyre of the correct size....so no mail order specials if the tyre is not available here already.

Supply of SC Pirelli's can be a bit patchy - I have a front SC1, but rears are only SC2 for 140/70 and not in stock currently and I don't want to go to 150/60. I have a new Rosso 11 which was the go to rear tyre for many guys and worked well. I did a few miles on one when I bought my 300, but shifted to the Dunlops for most of the season before trying the RS10's also ( ended up with a pair!).

So, on a back to back basis, how have people found an SC2 Super Corsa rear vs Dr11 rear for grip and feel. Much in it? Just interested to know what people thought . I'll be doing a test day in about 3 weeks with SC1 SC front and a DR11 rear as that's what I'll have to start the season on and probably run for most of it.

We've no Alpha13SP's yet here, and the local Dunlop IMporter is showing one size of Alpha 14 in stock already.....so not sure if we will get the 13SP's locally supplied.
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Old August 28th, 2017, 06:09 AM   #82
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Quote:
Originally Posted by Twinshock750 View Post
So, as I mentioned a while back, here in NZ our rules have opened up from this month to any readily available (ie imported by the official importer) DOT spec tyre of the correct size....so no mail order specials if the tyre is not available here already.

Supply of SC Pirelli's can be a bit patchy - I have a front SC1, but rears are only SC2 for 140/70 and not in stock currently and I don't want to go to 150/60. I have a new Rosso 11 which was the go to rear tyre for many guys and worked well. I did a few miles on one when I bought my 300, but shifted to the Dunlops for most of the season before trying the RS10's also ( ended up with a pair!).

So, on a back to back basis, how have people found an SC2 Super Corsa rear vs Dr11 rear for grip and feel. Much in it? Just interested to know what people thought . I'll be doing a test day in about 3 weeks with SC1 SC front and a DR11 rear as that's what I'll have to start the season on and probably run for most of it.

We've no Alpha13SP's yet here, and the local Dunlop IMporter is showing one size of Alpha 14 in stock already.....so not sure if we will get the 13SP's locally supplied.
whats your thoughts on the rs10. im currently running the rs 10.
grip seams to be there, their wearing faster than the dr11 that i ran last year.
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Old September 4th, 2017, 04:04 PM   #83
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First day out on the Michelin RS 150 rear for my 300. It felt just as good as the Alphas, but there again new tires always feel great! I'll keep you updated as it wears, right now it's only got about 110 miles on it. Even though it was pretty damn hot out there today, it did not slide or squirm much at all. I'll have to try and push it a little harder next time.
I've put in 3 more track days on the RS150 rear. The first one wasn't so good, but only because my front tire was worn out and I had no feel on the front and could not push. Over the Labor Day weekend I did another 2 days with a fresh front tire. First day the rear seemed to squirm around a bit, but on the second day I bumped up the cold pressure to 28-29 and it really performed nicely. I was deliberately giving some extra gas coming out of the tight corners and it was not moving around at all.

It still seems to be wearing nicely and looks to have plenty of life left in it. If you're not sprint racing and only doing track days and do not need absolute peak performance then I'd highly recommend this tire. Some of our local teams do use this rear for the endurance races though.
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Old September 5th, 2017, 04:49 PM   #84
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I tried new combination these past couple weeks. Two weeks ago at Laguna Seca and last week @ Sears Point/Sonoma.
front: 110/70-17 Dunlop Alpha-13 SP @ 27psi
rear: 150/60-17 Dunlop Alpha-13 regular @ 25psi
I must say that Alpha-13 SP has much softer casing than any tyre before. I was practically able to mount it by hand without any tyre-levers! Well, used levers for last 6" of bead and that was it.

Using sticker front-tyre really helped balance bike's handling given vastly different tyre sizes (stock front with +2 size increase in rear). Front-end still pushed at limit, but did so at higher grip-level and slid more gently and controllable than before with regular A-13.

Still can't get 150 back-end to let go no matter what kind of maneuvers I did. Maybe if I did abnormal stuff like slam on back brakes I can get it to come around. Full-throttle in corners just increased speed and tucked front-end. So there's still mis-match with using 110/150 tyres on N250R, even with stickier front tyre.

Once I go through these Alpha-13s, I may try Bridgestone V02 GP125 90/120 soft/medium combo that fast riders are using. Lower rotational-weight for faster acceleration and even better grip!
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Old September 5th, 2017, 05:07 PM   #85
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I tried new combination these past couple weeks. Two weeks ago at Laguna Seca and last week @ Sears Point/Sonoma.
front: 110/70-17 Dunlop Alpha-13 SP @ 27psi
rear: 150/60-17 Dunlop Alpha-13 regular @ 25psi
I must say that Alpha-13 SP has much softer casing than any tyre before. I was practically able to mount it by hand without any tyre-levers! Well, used levers for last 6" of bead and that was it.

Using sticker front-tyre really helped balance bike's handling given vastly different tyre sizes (stock front with +2 size increase in rear). Front-end still pushed at limit, but did so at higher grip-level and slid more gently and controllable than before with regular A-13.

Still can't get 150 back-end to let go no matter what kind of maneuvers I did. Maybe if I did abnormal stuff like slam on back brakes I can get it to come around. Full-throttle in corners just increased speed and tucked front-end. So there's still mis-match with using 110/150 tyres on N250R, even with stickier front tyre.

Once I go through these Alpha-13s, I may try Bridgestone V02 GP125 90/120 soft/medium combo that fast riders are using. Lower rotational-weight for faster acceleration and even better grip!
intersting,
ive seen the boys going the oppisite way also and doing really good. bridgestone 250 slicks 120/165
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Old September 6th, 2017, 07:34 AM   #86
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I'm still intrigued by those A13 SP's. Where do you buy them?

Are they still dual compound?

Are they still the type of race tire that will get damaged if you freeze them?

Does Dunlop list anywhere a comparison on the base A13 to the SP?

I think a softer carcass is a good thing, especially on a bike like this with a high unsprung weight.
Probably to late but the SP's are this years tire for the KTM cup bikes, only available to the cup guys through Race Tire Service . I know plenty of guys selling this tears take offs if you need a set or 5. More edge grip is their claim to fame.
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Old September 16th, 2017, 09:10 AM   #87
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Dunlop A13's on sale at Race Tire Service right now. $199 a set.

http://stores.racetireservice.com/AL...ninja-KTM-390/

Maybe they are making room for the SP's or the 14's or just clearing out this year's stock.
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Old October 3rd, 2017, 06:32 AM   #88
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I think they're cheap because the RC cup moved to the q3+.

http://www.motoamerica.com/dunlop-in...for-ktm-rc-cup

IMO i think this is very interesting for people who want to ride street and track as they can use the same tire and still get what the pros are using.

According to dunlop's website the tires for the small displacement bikes should be available in January 2018.

http://www.dunlopmotorcycletires.com...rtmax-q3-line/

Pricing should be interesting as a set of the 120 front and 160 rear are about $270.
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Old October 6th, 2017, 01:34 AM   #89
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Has anyone tried the Michelins on the 250? they are new to us this year, and due to "tire guy silly season" a week before racing, I am open to testing new tires.
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Old October 6th, 2017, 06:20 AM   #90
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Well, I'll be likely be going a different route next year. I just scored 5 sets of new Moto3/ 125GP-sized Dunlops for free, so it's worth it for me to try them out. The only catch is that they are 5 years old. Shouldn't be a big deal because they were stored properly. The 250 has handled pretty well all year, but I'm dragging the belly pan in some corners so I'll need to get the ride height back to where it is now. I'll measure the change in tire diameter then make new dog bones for the rear and lower the forks in the triples to get the ride height back to where it needs to be.

The one set of A-13 SP MotoAmerica takeoffs I put on the bike this year lasted the entire season. That would be six three hour endurance races plus practice (minus about three or four hours when we used rain tires.) I'd say a total of about 21 hours of on-track use so that's pretty good. The last race I was getting more sliding from the front than I like, so it was time for a new set. The back was worn down to the wear bars, but never really lost grip all season except for going over damp patches and the occasional movement/protesting under heavy braking and downshifting. We won five out of six endurance races with the narrowest margin of victory being four laps, so I'd say our overall pace was pretty good. However, we did not need to push to a sprint race level of pace, so that is a factor to consider.

If the new Q3 tires really are an improvement over the A-13s then they should be a solid choice for our little bikes. Still, my favorite tire so far has been the Pirelli Supercorsa. Without knowing how the Dunlop slicks will perform, the Pirellis are still my first choice for outright performance.
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Old October 28th, 2017, 03:24 AM   #91
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Okay, thinking about went weather grip. If you can't use proper wets and have to have use a DOT tyre, what gives the best grip....must be stock sizes too!
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Old March 8th, 2018, 08:25 PM   #92
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Hard to beat Michelin Pilot Roads for wet grip. Haven't tried them on the Ninja, but I can get a knee down on my Bonnie with PR4s in the dry. I did my first wet track day on them, I'd say it's not as good as real rains, but definitely better than a DOT race tire. If you're in mixed/drying conditions, it might be truly viable vs the other options.

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Old March 12th, 2018, 09:57 PM   #93
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Looking forward to trying out new Q3+ tyres. Supposedly they are about 3-sec/lap faster than previous Alpha 13-SP used in MotoAmerica. The following times are rough averages I've gotten at Thunderhill. Gonna move up 250 Superbike rankings!!!

BT-45 ~ 2:22
Alpha-13 ~ 2:16
SCv2 ~ 2:15
Alpha-13-SP ~ 2:15
Q3+ ~ 2:12 estimated

Got a set of vRossi wheels in 17x3.0/4.0 to make best use out of the 150 rear size. Gonna try them all out this Friday test-n-tune @ Buttonwillow and use fastest set for races.

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Old March 13th, 2018, 03:46 AM   #94
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Just a heads-up, I was talking to the local Bridgestone guy and supposedly they are coming out with a R11 (race compound with a just enough sipes to make it DOT) that'll be available in a 110 front and 140 or 150 rear. He's saying they might not be available until May-ish, though. I was talking to him thinking I'd go to slicks this year, but he seems to think these'll be a better option.

...because we didn't have enough to think about...
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Old March 13th, 2018, 12:36 PM   #95
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Here's info on R11: Bridgestone R11 info

Too bad they don't have soft-compound 110/70-17 front. I'd prefer to use that with medium 140/70-17 rear.

Last futzed with by DannoXYZ; March 13th, 2018 at 01:04 PM. Reason: fixed link
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Old March 13th, 2018, 12:57 PM   #96
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Here's info on R11: https://www.bridgestone.com/products...s/detail/pr145

Too bad they don't have soft-compound 110/70-17 front. I'd prefer to use that with medium 140/70-17 rear.
don't work (page not found) https://www.bridgestone.com/products.../detail/pr145/ this one works
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Old March 13th, 2018, 01:04 PM   #97
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Looking forward to trying out new Q3+ tyres. Supposedly they are about 3-sec/lap faster than previous Alpha 13-SP used in MotoAmerica. The following times are rough averages I've gotten at Thunderhill. Gonna move up 250 Superbike rankings!!!
Not if everyone else gets them too.
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Old March 13th, 2018, 01:35 PM   #98
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Not if everyone else gets them too.
SShhhhhh,,..
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Old March 14th, 2018, 06:47 AM   #99
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Where did you get the wheels?

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Originally Posted by DannoXYZ View Post
Looking forward to trying out new Q3+ tyres. Supposedly they are about 3-sec/lap faster than previous Alpha 13-SP used in MotoAmerica. The following times are rough averages I've gotten at Thunderhill. Gonna move up 250 Superbike rankings!!!

BT-45 ~ 2:22
Alpha-13 ~ 2:16
SCv2 ~ 2:15
Alpha-13-SP ~ 2:15
Q3+ ~ 2:12 estimated

Got a set of vRossi wheels in 17x3.0/4.0 to make best use out of the 150 rear size. Gonna try them all out this Friday test-n-tune @ Buttonwillow and use fastest set for races.

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Old March 14th, 2018, 08:17 AM   #100
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I've got two spare sets of stock '08-12 N250R wheels.

Third set vRossi wheels for N250R was found on Craiglist through an automated search that sent me emails. After a year, it found a set! As mentioned in various threads here, the bearings were seized and toast. Replaced them with ceramic ones.
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Old May 8th, 2018, 03:53 AM   #101
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I had a pair of R11's in 110/140 sizes land in the driveway this afternoon from the New Zealand distributor. They have only been in country a week....

Any one yet been able to try and set? Feel is wildly soft rubber.....

Reports from journo's is good, but keen for some racers to provide feedback.

Unfortunately I've just sold my old 300 Ninja race bike and my new race bike hasn't arrived yet....so I cant try them. aaraarrgggh!
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Old May 9th, 2018, 09:36 AM   #102
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I had a pair of R11's in 110/140 sizes land in the driveway this afternoon from the New Zealand distributor. They have only been in country a week....

Any one yet been able to try and set? Feel is wildly soft rubber.....

Reports from journo's is good, but keen for some racers to provide feedback.

Unfortunately I've just sold my old 300 Ninja race bike and my new race bike hasn't arrived yet....so I cant try them. aaraarrgggh!
My tire guy says they won't be here for this weekend - Should be there for the June round. Feel free to overnight yours to Portland International Raceway and I'll give you a review .
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Old June 19th, 2018, 02:34 PM   #103
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So, this last weekend I got the R11s on. I'm thoroughly impressed. Granted, I've been riding on Alpha 13s for about a year and a half. We were running with the chicane at PIR this weekend, so I can't really compare laptimes, but my confidence was *way* up. I typically have barely been touching my right knee down, and this weekend that changed. At this rate, I'll be needing a new set of sliders before the end of the year. I was able to harass and even get in a couple passes on 2 people I normally would lose if I made more than one mistake. I ran the 140 rear and had zero chicken strips there. About 3/8" chicken strips on the front. I was running ~26psi front and 28 rear. The fast guys on the same tire (although one opted for a 150) were running in the 32/30 range, but when I tried that in practice I couldn't keep heat in the rear.
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Old July 18th, 2018, 09:10 PM   #104
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are you still running the r11?
still like them? im up for new tires, been running the the rs10.
time for new ones. on the rs10 i been running 24 front 26 rear,
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Old July 19th, 2018, 06:14 AM   #105
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Anyone hear about the new Q4s?

Single compound track tire and lighter than the Q3s. Not a replacement for the Q3+.

Not sure about sizes.
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Old July 19th, 2018, 07:50 AM   #106
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Anyone hear about the new Q4s?

Single compound track tire and lighter than the Q3s. Not a replacement for the Q3+.

Not sure about sizes.
Not available in small bike sizes. We are the red-headed stepchildren of the racing world. :P
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Old July 19th, 2018, 08:36 AM   #107
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Not available in small bike sizes. We are the red-headed stepchildren of the racing world. :P
Interesting, considering new World SuperSport 300 (ish) and Junior Cup classes, though I think some of those require spec tires.
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Old July 20th, 2018, 09:36 AM   #108
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Interesting, considering new World SuperSport 300 (ish) and Junior Cup classes, though I think some of those require spec tires.
Yes they do: Pirelli Supercorsas. Still the best tire that I've used personally. Haven't tried the Q3+ or the R11.

I used some older but new Dunlop slicks and they worked pretty well when I used them at a trackday and when I pushed them hard they rear would slide predictably. However when I used them a few weekends later I didn't like the feel. I think that was due to not getting the pressure and temperature right but I didn't have time to screw around on a race weekend so I went back to a set of Alpha 13's and instantly got a familiar feel which helped us to our first endurance win of the season. The Dunlop slides earlier than I'd like, but even with the front sliding in a pretty aggresive move it was predictable and easy to catch. On track note to self: " Ok, the 'Lop is telling me not to do that again!"
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Old July 20th, 2018, 03:55 PM   #109
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Interesting, considering new World SuperSport 300 (ish) and Junior Cup classes, though I think some of those require spec tires.
Yup, Junior Cup has Q3+ as spec-tyre. To keep costs down for participants, they also limit number of tyres you may go through in weekend.

http://motoamerica.com/2017/09/dunlo...or-ktm-rc-cup/

The 600s use GPAs and 1000s use KR slicks.
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Old July 23rd, 2018, 09:51 AM   #110
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So, weird crash Saturday on the R11s. Lowside late in Turn 1 at PIR trying to go outside a slower rider. 75ish mph, nearly full lean. Running ~1:31s. About 90deg. Pressures 30f, 33r per the Bridgestone guy. No real indication I could feel that something was amiss until I was sliding. A buddy behind me says my rear went out, but the tire was still melty on the edge, not scrubbed clean. A bit weird. Best guess is I got wide enough to be on dirty track, and my footpeg lifted the tire before it could show the expected wear.

I walked off. Leathers and bike will need some work, but next round is still pretty doable.
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Old July 23rd, 2018, 06:10 PM   #111
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So, weird crash Saturday on the R11s. Lowside late in Turn 1 at PIR trying to go outside a slower rider. 75ish mph, nearly full lean. Running ~1:31s. About 90deg. Pressures 30f, 33r per the Bridgestone guy. No real indication I could feel that something was amiss until I was sliding. A buddy behind me says my rear went out, but the tire was still melty on the edge, not scrubbed clean. A bit weird. Best guess is I got wide enough to be on dirty track, and my footpeg lifted the tire before it could show the expected wear.

I walked off. Leathers and bike will need some work, but next round is still pretty doable.
are these hot pressures
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Old July 23rd, 2018, 06:32 PM   #112
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Yup. Pressures off the warmers. Crash was 2-3laps in, but I was on a pretty good pace for me.
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Old August 3rd, 2018, 08:46 AM   #113
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Question for the people.

Does anyone know if there are different versions of the Q3+ in 110/150? Edit: Fastest response ever from a company. Dunlop says there is only one Q3+ version for 110/150, and it is available through all channels.

Previously, Race Tire Services was the only group selling the Q3+, and I had heard rumors from people in the industry that the MA/RTS Q3+ was different from the big bike Q3+. Now, I am seeing 110/150 Q3+ for significantly less than RTS on the normal consumer sites, but am wondering if it is a different tire.

Last futzed with by Mechanikrazy; August 14th, 2018 at 12:17 PM. Reason: Updated Info
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Old August 14th, 2018, 10:18 AM   #114
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Now, I am seeing 110/150 Q3+ for significantly less than RTS on the normal consumer sites, but am wondering if it is a different tire.
Could be end-of-season clearances, and RTS hasn't done theirs yet since they'll just shift their focus to doing trackside in Cali for the winter season?
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Old August 14th, 2018, 10:25 AM   #115
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Could be end-of-season clearances, and RTS hasn't done theirs yet since they'll just shift their focus to doing trackside in Cali for the winter season?
Either way, I just picked up a set off Rocky Mountain and will try it out. There is a Q3+ rebate for $50 so the final price is around $211, or just a few dollars more than the clearance Alpha 13 from RTS.

We will see how these feel.
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Old August 14th, 2018, 11:53 AM   #116
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I just picked up set of Q3+ from some MA folks when they were at Sears Point last weekend. Appears to be same as retail version.
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