Confused About Rear Car Tires Options

[PW2013STL]

Les,
1. What pressure were you running in your Altimax at the time?????
2. What size RT43 were you using, the 205/60R15 91H(same size as Premier) or the 215/60/R15 94T????
Mike

Mike,

1) = 28# (too high)
2) = 215/60/R15 94T

 

[Bob Denman]

I ran 23 psi in the Kumho Ecsta AST, that I just traded in.
(225/50-15 sizing)

 

[SPECTACUALR SPIDERMAN]

if it were for me and i am not using the kenda i would go with the 225x50R15 kumho ast

 

[roofus7044]

I just installed the General Altimax on the rear of my RSS and its the best thing I've done to my Spyder so far. I've only ridden about 150 miles on it so far but it is so much better than the stock Kenda. I didn't have any problems in the rain with it so far but it wasn't raining real hard. No matter what you pick it will be a big improvement over the Kenda.

 

[remark2013]

I run 26# in my Altima. Tried 22lbs and the bike seemed to want to "wander" a bit. After I increased it to 26 lbs no more wandering. To each their own.. I can agree that this tire out performs the Kenda hands down! My wife's bike will also get the same tire real soon!

Kent

 

[BLUEKNIGHT911]

REAR TIRE WANDERING

I run 26# in my Altima. Tried 22lbs and the bike seemed to want to "wander" a bit. After I increased it to 26 lbs no more wandering. To each their own.. I can agree that this tire out performs the Kenda hands down! My wife's bike will also get the same tire real soon!

Kent

Kent I believe you actually have an Altimax ... correct ..... at 22 lbs it is NOT wandering ..... at 18 lbs it will NOT be wandering....... This tire has weight rating approx. 3 X's that of the OEM Kenda ...it has 4 tread plies and 2 sidewall plies that are each thicker than the single ply Kenda ...... I don't know of anyone using 18 psi in any CAR tire that has your feelings of " wandering " ...... Mike :thumbup:

 

[remark2013]

I do have the Altimax and I can tell you that on my bike with me and the Wife riding it was "wandering" and "squshey" feeling...............until I increased the pressure. That being said, I will be buying another one for the Wife's bike as well as I really like the way it rides and handles.

Kent

 

[almosthere]

.

I too put General Altimax RT43 215/60 R15 on my 2015 RT-S and am running at 27# cold, but when at operating temp it will rise to 28 - 29# and according to the FOBOs rum 18 to 20 degrees warmer than the fronts. This might have something to do with the heat generated by motor and cat converter right in front of it with no extra air flow to cool it down like the fronts. I've seen the rear reach 102 on a 85 degree day. I plan to put the air scoops used on the 998 bikes to push more air through the tunnel that all the Tupperware creates.

 

[Old Crow]

I too put General Altimax RT43 215/60 R15 on my 2015 RT-S and am running at 27# cold, but when at operating temp it will rise to 28 - 29# and according to the FOBOs rum 18 to 20 degrees warmer than the fronts.

Google "4 psi rule". You may want to drop the pressure just a bit.

Bob

 

[BLUEKNIGHT911]

COOLING THE REAR TIRE

I too put General Altimax RT43 215/60 R15 on my 2015 RT-S and am running at 27# cold, but when at operating temp it will rise to 28 - 29# and according to the FOBOs rum 18 to 20 degrees warmer than the fronts. This might have something to do with the heat generated by motor and cat converter right in front of it with no extra air flow to cool it down like the fronts. I've seen the rear reach 102 on a 85 degree day. I plan to put the air scoops used on the 998 bikes to push more air through the tunnel that all the Tupperware creates.

The rear tire is in such a confined space imho there is NOTHING that can be done to cool it ...... and it's not necessary ...... Get the psi down to 18 and everything will be a lot better ...... Mike :thumbup:

 

[BLUEKNIGHT911]

" SQUSHEY "

I do have the Altimax and I can tell you that on my bike with me and the Wife riding it was "wandering" and "squshey" feeling...............until I increased the pressure. That being said, I will be buying another one for the Wife's bike as well as I really like the way it rides and handles.

Kent

Kent every kid out there who puts a Loud exhaust on there car - truck - motorcycle will swear and bet money that their ride is now FASTER because of it .......... however 99.99 % of the time it's actually slower if anything....... Even if you and your wife have your Spyder at it's maximum weight capacity that tire has enough sidewall strength to prevent what you THINK you are feeling .... sometimes there is loose material on the road that you don't notice and the tire might " sideslip " a tad. I won't BS you and claim 22 lbs is critical.... but the ride and wet performance will be a bit better at 18 psi........ Mike

 

[Bob Denman]

Kent,
Ride your Spyder with the tire pressures that suit YOU the best! :thumbup:
Mike is a pretty thin guy, and he usually rides solo: his weight probably doesn't make the tire pressures critical.
If you... "take up a bit more space in the mirror" : you just might need to squeeze a few more PSI into the mix!

 

[GaryTheBadger]

So, what the best rear tire for a solo-ridden F3 that never has, and never will, be ridden in the rain,
where the most important consideration is long life rather than performance?

 

[BLUEKNIGHT911]

LONG LASTING TIRE

So, what the best rear tire for a solo-ridden F3 that never has, and never will, be ridden in the rain,
where the most important consideration is long life rather than performance?

I think the Cooper CS5 ( Grand Touring model NOT the Ultra touring !!!!! ) might be what you looking for ........ Mike :thumbup:

 

[GaryTheBadger]

I think the Cooper CS5 ( Grand Touring model NOT the Ultra touring !!!!! ) might be what you looking for ........ Mike :thumbup:

Thank you Mike.

 

[remark2013]

Ok MIke, how about we agree to disagree here. I never said anything about how my bike handles better than yours, only how I felt my bike handles. I am not a teenager, 51 years young thank you.
In fact this weekend I did lower the pressure to 22 psi and went on a 500 mile and again I did not like how the bike handled. Also rode in the rain and was the first time I felt some hydroplaning from this tire. Now, saying that, this tire has about 27,00 miles on it and cannot make that argument at this time. Back to 26 for me and my bike.

Kent

Kent every kid out there who puts a Loud exhaust on there car - truck - motorcycle will swear and bet money that their ride is now FASTER because of it .......... however 99.99 % of the time it's actually slower if anything....... Even if you and your wife have your Spyder at it's maximum weight capacity that tire has enough sidewall strength to prevent what you THINK you are feeling .... sometimes there is loose material on the road that you don't notice and the tire might " sideslip " a tad. I won't BS you and claim 22 lbs is critical.... but the ride and wet performance will be a bit better at 18 psi........ Mike

 

[remark2013]

Oh I plan too! :yes::yes:

Kent,
Ride your Spyder with the tire pressures that suit YOU the best! :thumbup:
Mike is a pretty thin guy, and he usually rides solo: his weight probably doesn't make the tire pressures critical.
If you... "take up a bit more space in the mirror" : you just might need to squeeze a few more PSI into the mix!

 

[wd8ajj]

Just put an Kenda on the rear at about 23psi Rides fine. Were are people getting the front 165/55/15 from at good prices. Tire rack does not carry that size. Local dealer can order but wants 125+ each. Thats way to much.

 

[BLUEKNIGHT911]

THIS TIRE THING

Ok MIke, how about we agree to disagree here. I never said anything about how my bike handles better than yours, only how I felt my bike handles. I am not a teenager, 51 years young thank you.
In fact this weekend I did lower the pressure to 22 psi and went on a 500 mile and again I did not like how the bike handled. Also rode in the rain and was the first time I felt some hydroplaning from this tire. Now, saying that, this tire has about 27,00 miles on it and cannot make that argument at this time. Back to 26 for me and my bike.

Kent

Dear Kent : No dis-respect, but you are saying that .... you are basing your statement about tires from what your Butt is telling you..... I'm basing what I'm saying on Schooling , training, and the fact that I have testified in Court about Tires ...... Soooooooooooo if you think your Butt is better at predicting the performance of tires than my knowledge ..... I will give a list of my teachers, who you can offer your services to.... PS giving Expert testimony in Court can be very lucrative $$$$$$.......All the best ... Mike :thumbup:

 

[Bob Denman]

Mike...
I hope you realize that you just compared your brain; to his butt! :yikes:

Good luck with THAT! :roflblack:

:joke::joke: