SSR: A Re-Tiring Concept
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Ossessionato
2015 GTS 300 Super (Melody)
Joined: 22 Apr 2015
Posts: 2433
Location: Asbury Park, NJ
Tue Mar 03, 2020 2:20 pm quote
I'd say this sort of thing is seriously far-off, but those crazy techs at Goodyear sure know how to pump up the air in the room:

https://www.cnet.com/roadshow/news/goodyear-recharge-tire-growing-tread-concept-future/?ftag=CAD13782fc&bhid=18910724187539994501534683184172&mid=12729352#
Addicted
BV 350
Joined: 22 Nov 2016
Posts: 534
Location: Nebraska
Wed Mar 04, 2020 2:55 am quote
It'd be nice
Given that tires are one of the worst waste problems in the country, it'd be nice if they could head in the direction of designing tires for re-capping, rather than disposal, as an intermediate step. Maybe a nice machine at your local bike shop that 'grows' new tread while you wait. No need to change the carcase unless there is road damage. Although a nice self-healing tread process would be helpful. Maybe a small mobile version that you apply after pulling the offending nail or screw to 'heal' a puncture.

Be a real bummer if someone hacked your self-building-tire AI and it decided to put on a high-mileage overlay in the midst of a race-track corner.
Ossessionato
2015 GTS 300 Super (Melody)
Joined: 22 Apr 2015
Posts: 2433
Location: Asbury Park, NJ
Wed Mar 04, 2020 10:08 am quote
Re: It'd be nice
Jimding wrote:
Given that tires are one of the worst waste problems in the country, it'd be nice if they could head in the direction of designing tires for re-capping, rather than disposal, as an intermediate step. Maybe a nice machine at your local bike shop that 'grows' new tread while you wait. No need to change the carcase unless there is road damage. Although a nice self-healing tread process would be helpful. Maybe a small mobile version that you apply after pulling the offending nail or screw to 'heal' a puncture.

Be a real bummer if someone hacked your self-building-tire AI and it decided to put on a high-mileage overlay in the midst of a race-track corner.
Recapping has a seriously bad rep here in the States: I've had to dodge carcasses of recapped truck tires several times on the highway, and no motorist in their right mind would trust a recap. I wouldn't be surprised if the first implementation of Goodyear's brave-new-tech, whenever it becomes a reality, will be in long-haul trucking.
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BV 350
Joined: 22 Nov 2016
Posts: 534
Location: Nebraska
Sun Mar 08, 2020 3:32 am quote
Yes and no
Evidently recapping in the heavy truck industry is the rule, not the exception. And the 'tread-tossing' so common on the highways is often due to underinflation or tread-size mismatch resulting in the tire overheating. Not uncommon to see tire smoke or smell hot rubber when behind heavy trucks. Presumably if the tire can 'grow' tread' successfully than it can 'grow' tread on a preexisting carcase. Tire manufacturers are also talking about phasing out the pneumatic tire in favor of 'structured' wheels holding a thin layer of tread that would provide the same suspension effect. We will see.

In the past, car tires were retreaded as an economy measure, and the results were often unreliable. But modern retreads, done correctly, seem far more comparable to new tires. Of course, with new tires often providing 80,000 miles, by the time the tread is worn out the rubber in the carcase is too old to retread anyway.

But bike tires that can be worn out in a single year, or even faster, might offer ample opportunity.
Ossessionato
2018 Vespa GTS 300 ABS- Bianco
Joined: 20 Apr 2013
Posts: 2138
Location: E. KY
Sun Mar 08, 2020 11:25 am quote
What I read here wasn't retreading? it was a new concept entirely.
FWIW, The Goodyear Topeka Plant where I worked (largest in the world) did retreading of tires in the plant every day. Those were worn equipment ( we called all larger than a tractor trailer tire "earthmovers") tires you see on flatbed trucks get new tread. 18 wheeler tires are routinely retreaded outside a new tire production plant.
Those treads seen laying on highways are usually not retread treads but mostly come off truck tires that had a defect like contaminated where "glued" as green tire to the carcass or un-proper cement job when green.

Goodyear engineering nerds need stuff like that to think about?
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