Ashley
Site Supporter
- Joined
- Aug 16, 2009
- Messages
- 872
- Age
- 61
- Location
- Jacksonville, Florida USA
- Bike
- 2020 Africa Twin
- STOC #
- 4906
I guess I need to wear out the $99 rear T30 close out tire I just put on before the BRG.
T31 is dead, long live the T32.
- Thread starter Upt' North
- Start date
ST1100Y
Site Supporter
Amen to that UP...My only problem is every time a manufacturer 'improves' a tire, it gets less mileage than it's predecessor.
I guess they mean 'improves their profits' ...
(STill running my G547/548...)
6000km on a Metzler rear
12000 km on a Michelin Pilot road 4 GT rear, over the years at least 4 sets and the road 3's before them.
17000 on my first Bridgestone T31. Rear
Thought I'd made a mistake on the mileage but after checking my maintenance records, that figure is correct. Best mileage on any rear tires in ten years of riding the ST.
Looking forward to the T32's and hope Uncle Phil is wrong. But I suspect not.
12000 km on a Michelin Pilot road 4 GT rear, over the years at least 4 sets and the road 3's before them.
17000 on my first Bridgestone T31. Rear
Thought I'd made a mistake on the mileage but after checking my maintenance records, that figure is correct. Best mileage on any rear tires in ten years of riding the ST.
Looking forward to the T32's and hope Uncle Phil is wrong. But I suspect not.
Kevcules
Site Supporter
Your mileage is impressive. Are you attentive on air pressure? What pressure do you run?
I've got the T-31's on now.....
Thanks
Quality of tires themselves don't determine a loss, or increase, of tire pressure.
You must live in an area where the ambient temperature stays constant. That or your bike is in a temp controlled garage or storage, and rarely ride : )
The fluctuation in temperatures between daylight hours and night hours has an effect on pressure, because the air inside them expands and contracts.
The general rule is ... for every 10 degrees in air temperature change will result in one pound of pressure change. If the temp goes up, tire pressure will increase, and vice versa.
Tires also loose air from permeation
Mine sure do. I have to top off every week or two. The rear seems to leak a bit faster.
Shawn K
Professional Cat Confuser
From my experience, style of riding is at least as important as tire pressure.
At a steady 70 mph, it takes very little horsepower to maintain speed (maybe 20-25 HP). However, if you're constantly slowing down and speeding up (and especially if you're ham-fisted), then you're putting waaay more power through that tire. Tire deformation, shearing effect, and heat all increase. And that's what wears out a tire.
I changed out my last Metzeler Roadtech-01 180/55zr17 HWM-spec at 22,000km. It was beat. I have another on there now,, and, I have another in the basement ready for next summer (should be good till the middle of 2022). Premium price tires should deliver exceptional performance. Otherwise they are just a rip-off. Cheers,,, CAt'
OP
OP
I thought it was just me. It normally is. Since I've been running T31's checking tyre pressures can just about be forgotten. They haven't needed air for months. Previous Bridgestones always required regular topping up.
Strange innit.
Upt'North.
Shawn K
Professional Cat Confuser
Mine, too. Every set of tires has done the same thing. I don't know how there are guys who get away with never needing to air up tires.
Kevcules
Site Supporter
Myself also.....I always see a loss in pressure after weeks of use, or non use. I always check before a significant ride. Some don't?? A few years ago, my friend and I went for a 2 hr ride through some twisties at fairly high speeds. I was surprised at his riding, he's older than me. When we stopped to eat, he said his bike felt loose on the turns.
Out comes my air gauge and guess what I found? 22lbs of air in his freaking tires!!!! (same size bike as mine)What I can dare to guess is that some of the tire installers could be cleaning the rim surface properly where the tire seats, before install. That may alleviate the noticeable pressure loss? Air pressure loss over time is normal for me though.....
larryg
Site Supporter
Similar here with my T31s, and previously the T30s. I check them religiously, but seldom have to top off - except when ambient temp changes.
As a friend pointed out years ago, we live in a time where 90% of us would struggle to use 90% of a current tire's performance.
We are blessed to be riding in these times, are we not?
We are blessed to be riding in these times, are we not?
Slydynbye
Will ride for Pie
Well you may be close, just priced the T31 and the T32 . My source was $158 and $175 respectively.I guess they mean 'improves their profits' ...
Most likely the low hanging fruit was picked a long time ago in terms of tire technological advancement. Now the increments are going to be smaller, especially when you take into account that the tires have to be affordable.
Jeff
OP
OP
Maybe not Jeff..........
Obviously I and no other person can give a ride report on the 32, that's only known to Bridgestone at this stage, but, when I look back to the 23 only 5 years ago and the 31 today it is chalk and cheese.
The 23's were destroyed after a 5000 mile trip with the front tread pattern worn out of recognition, the 31's take this sort of long distance demanding ride with ease and the wear is uniform and mileage consistent.
Will the 32 be the same leap forward, who knows, but if it equates to 10% extra mileage they're paid for anyway.
We'll see.
Upt'North.
Well I can't say anything about T32's yet either, but my days old T31 rear sure feels nice vs the worn T30 that was on it.