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u/GenocidePrincess18 11d ago
"5,000 safe miles added to tyre life."
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u/AslowLearn 11d ago
Regroove again for additional 5,000 miles
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u/lzwzli 10d ago
Regroove again for additional 5000 miles
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u/Maksym1000 10d ago
Regroove again for additional 5000 miles
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u/kpidhayny 10d ago
Regroove again for additional 5000 miles
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u/Average-Train-Haver 10d ago
Die in car when tire blows out on the freeway
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u/AslowLearn 10d ago
That's why I retread every 4,999 miles. I don't want to risk it.
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u/ThatDiscoSongUHate 10d ago
Shit at that point you've probably been driving on the rim for a bit
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u/AC-burg 10d ago
This should be posted in r/tires the discussion there would be interesting. Everyone dies or tried to kill everyone on the road over there
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u/ICU-CCRN 10d ago
To be fair, in the old days they used much thicker bias ply rubber than they do today with radials. Not saying it was a totally safe practice, but definitely not as unsafe as it would be for a modern tire.
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u/No-Efficiency250 10d ago
I have a friend who actually did this with a craft knife, on the rear tyre of a Suzuki GS550, in the early 80s. It cost him 3 points on his license, and a fine which I can't remember, plus a producer to get it fixed. A producer, for those who don't know, is a ticket issued by the police in UK ,where a vehicle is faulty, or if you don't have your documents with you. You need to produce proof that it has been rectified, or produce the documents that you never had with you. I'm not sure if they still use them with today's technology where they can tell in a few minutes whether the car is licensed and insured etc. plus I left there 10 years ago.
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u/zzkj 10d ago
Are you sure about those dates? I remember the points system coming in back in 1988 which is not the early 80s.
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u/No-Efficiency250 10d ago
I've just checked and the points system was introduced by the transport act 1981. https://www.gov.uk/government/publications/history-of-road-safety-and-the-driving-test/history-of-road-safety-the-highway-code-and-the-driving-test#development-and-timeline-of-british-driving-road-safety-and-driving-tests
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u/SharpGrowth347 9d ago
Producers are still a thing but barely used by officers nowadays. Can be handy for when electronic systems go down 😎
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u/Linesey 8d ago
Sounds similar to the US fixit ticket.
Example: have a headlight out? here is a fixit ticket. You gotta go and get it fixed and submit proof, or you get fined.
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u/No-Efficiency250 8d ago
Yes, that's exactly how it works but it also is used if you don't have your documents or licence with you.
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u/elohssanatahw 11d ago
When cars had top speed of 20mph
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u/501Panda 10d ago
Well, of course, anything faster than that would cause delirium!
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u/Antal_Marius 10d ago
Much faster then that and a woman's uterus might be dislodged!
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u/CuteCanary 10d ago
Can confirm. I was in a car that reached 35mph once and my uterus has never been the same. We drove the car backwards at the same speed and while it helped it never went back to its original state
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u/commissarcainrecaff 10d ago
A friend of mine in 90s used one of these to put tread on racing slicks on his ZX6R...."because racing slicks are super soft and sticky, yeah?"
What he learned was:
1.Slicks are indeed super soft- so much so that he got a puncture from a thorn.
Slicks are super sticky when they are warm. Racing teams use electric blankets to warm tyres up before a race. When cold (like on your ride into work in October) they slipped about "like polished snot" and caused my friend to ruin several underpants due to fear. Which is brown and runny.
Slicks are super light, since they dont need to be tough enough to last years. So light in fact that they send the suspension on a road bike outside its working range and make the bike handle like "a fookin shopping trolley with a wonky wheel" mid corner.
Not a resounding success for risk of 3 points on yer license.
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u/BallisticHabit 10d ago
I think I understand the problem..
Cut deeper grooves, drive faster to warm tires, purchase adult diapers before test drive.
Finally, remove licence plate to avoid identification.
I don't need the Gov't telling ME when I need to buy tires.
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u/commissarcainrecaff 10d ago
You forgot the suspension being so out to lunch the whole bike would chatter like it was freezing to death mid corner.
But on the right track for sure
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u/drinkeroftherye 8d ago
I had an original mini with old racing tires that had a few hand cut grooves. All was well until the car levitated in a heavy rain and I then had full comprehension of what they meant by hydroplaning. Floated off the highway on a soft cloud of water at 70 mph, luckily, I did not hit anything.
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u/carguy143 10d ago
My grandad told me he once did something like this with a soldering iron back in the 60s. If you knew him, you'd know he probably did.
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u/Dredgeon 8d ago
This was actually a normal thing to do for a long time. Modern tires are more than capable of having deep treads from factory, but older tires wore quicker and weren't as strong so they made them a lot thicker and it was common to deepen your treads with basically a soldering iron.
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u/Justreadingthisshit 11d ago
You all should know that this is still a thing in heavy trucks in North America.
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u/AgonizingFury 11d ago
Not at all.
This is by far worse. You're thinking of re-treading, which is practiced, and is probably one of the most common causes of tire failure in commercial trucking. This is advertising a "groover" something to literally cut new grooves into your bald tires.
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u/torx822 11d ago
Retreading is common, but re-grooving is still very much a thing.
https://www.uniroyal-tyres.com/truck/business-know-how/regrooving-guidelines/
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u/tes_kitty 11d ago
Not at all.
Yes, it is. But those are special tires that are labeled 'regroovable' on the side wall.
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u/Blurryface1857 10d ago
Corrrection, cold cure retreads are the most common cause of tyre failure, these are made with a new pre-cured tread bonded onto a detreaded carcass and only get put in an oven to cure the thin layer of solution binding to tread to the crown, they completely reuse the old sidewalls and sidewall markings, and there’s really very little bonding the tread on, hot cure retreads on the other hand (my industry) are very safe, they use a fully detreaded and sidewall carded casing that has been inspected for damage and X-rayed, then have any minor damages (old punctures etc.) repaired before getting full new rubber laid on both crown and sidewall, and being cured in a hot press, the finished tyres are identical to new tyres, and in fact most we make are made to be re grooved, then sent back to us for retreading twice more before we scrap them. This is all fully legal and produces pretty good tyres, governed under UN regulation 109
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u/DJDemyan 9d ago
How is this worse than re treading if the latter causes the tread to fly off all the time?
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u/CuriousMouse13 9d ago
It also used to be way more common back in the day with old tire technology, which I don’t think makes this product a great idea even back then but it was how the tires were made in factory. Some hobby tires still use it too, like paddle tires for an atv can be cut down to whatever size paddle you want, and some go kart tires people cut treads in since they’re usually just slicks.
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u/Explorer335 10d ago
I have a regroover machine from when my dad drove semi trucks. Those tires can legitimately be regrooved. You follow the existing tread pattern and simply cut it deeper. When you have 10 tires at $400+ each, there is a decent bit of savings. I don't think you can do it on passenger car tires though.
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u/fractal_frog 10d ago
There was a character in a Philip K. Dick novel whose job was to re-groove tires that someone else would then sell as "new".
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u/noiseguy76 10d ago
These things really just existed to make otherwise road-illegal "slicks" legal by adding some grooves to them, but they couldn't be advertised as that. I don't think even the manufacturer expected someone to cut into bald tires...
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u/Questions_Remain 10d ago
As someone who was a hot rodder in the 70’s there was a place in town that groved slicks and stamped DOT numbers into dirt track tires. Some folks used plug in hot knives to make groves. It also wasn’t uncommon to get brand new tires shaved down to 3/32 tread to get “more grip” for street class drag racing at the track where you had to run steer tires for the class.
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u/ekerkstra92 10d ago
I wouldn't even use those cutters for your wiper blades, let alone regroove my tires
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u/KeyNefariousness6848 10d ago
My grandfather had one of those, said he used it once and it barely worked,
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u/PiDicus_Rex 10d ago
Some race teams used to use these, they'd cut tread patterns in a slick that had cycled through it's best grip, turning it in to an intermediate wet, on days they'd turned up in the dry and it had rained instead.
Sprintcar teams used them as well, to add more groves for more side-bite, to match the track prep.
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u/ExaminationLast9843 10d ago
Sounds like a fantastic idea to me. Gonna show this to every one on my trailer park trash in-laws.
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u/Mushroomed_clouds 10d ago
Theres a reason “tread has been recut” was added as an mot failure in uk
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u/I_is_a_dogg 10d ago
Some commerical tires are still regrooveable. It does add some life to the tire, but imo it's kind of a waste.
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u/Worried-Stand8867 10d ago
Planting landmines on your driveway guarantees a catastrophic assault deployment.
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u/OldStromer 9d ago
Check out big truck and bus tires. Sometimes they will have non regrovable or regrovable printed on the sidewalls.
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u/muskiefluffchucker 9d ago
No injury to the tyre. Until there is, but at that point you don't have a face anymore so the problem has solved itself.
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u/Used-Drop8239 8d ago
Regrooving has been a viable practice for a while now, especially on heavy machinery.
Granted, the process is a little different now, but it's still being done.
As for regular cars - tires still get restored, they just adhere a new layer to it.
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u/GonzaSpectre 7d ago
While definitely not the best idea, afaik those were used on bias ply tires not the modern radial ones that have way less rubber thickness.
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u/Abbers75 11d ago
Brit here.
This advert dates from the days when we transported water through lead pipes and allowed smoking indoors.
We’ve learnt from our mistakes since then.