Punctured tire on track

[Chaoz]

Hi, wanna ask if anyone of you guys punctured your tire, patched with those repair kit (inserting the 'wormy' thing into the hole), and use the tire on track? Any problem? My tire was punctured and the hole was mended. Thinking of going to track. No problem riding on street now but duno if anything wrong might happen on track condition.

 

It is a must for me to change the whole tire if i wanna go track? Btw, the tire is 1/2 yr old and nv been to track, compound and thread still good condition, sportec M1 rear tire.

[r2r]

oki ... it really depends how hard you ride.

 

Personally I would not go on track with mended tire - there is only little patch of it that keeps u planted to the ground at 200km/h and wd be a shame if this little patch decided to disaappear

 

however i know that people did it and they rode the whole track day with no problems - just a question whether you wanna risk your skin

[NightPhantom]

wouldnt wanna risk anything like tat.... i used to had a relatively new tire puncutred by a KEY and during that period i was actively at track...

 

however i decided not to risk it... i believe e tire wouldnt be evenly round also.... i wouldnt wanna crash and blame my tires...

 

tires and brakes are ur lifeline...

[darthmaul]

The tyre repair kit is a temporary emergency fix so that you can ride till you reach your workshop to change your tyre.

[CoRnEr7]

fren punctured his rear racetec k2 on his 3rd lap during a PG session.

had it mend n subsequently went for another 2 sessions with no probs...

 

a mech once said dat the "worm" can be used till da tyre is bald...

 

i dunno bout u guys but these are my experiences...

[phudzlee]

Another option for u if u think u wanna save ur tyre for track is to get the tyre be patched from the inside out. The patch looks like an 'umbrella' there by the top part of the 'umbrella' will be 'glued' to the inside walls of ur tyre.

 

Personally i've done dat b4 and have tracked my tyres and its been fine. But den again, I might not be fast enuff on the track. I got no choice as the tyre got punctured by a teeny weeny nail only 1 week after fixing it. I have actually changed the tyres for track riding .. so .. no money, i patch lor... Bo pian...

[Chaoz]

i'm also thinking of patching my tire from inside out.. but duno where and who is doing this service and how much..

 

i wun be fast enough also.. juz a 400cc bike.. dun think i will go pass 180km/hr at all lor..

[dinie]

its not bout the speed man. its the abuse you bring to your tyres when you track. cornering, hard acceleration and hard braking. for me tyres, brake pads and helmets cannot save money one. time to change, you must change. life is more important.

[RAKz]

Change a good pair of tyres if u wanna go track bro. I learnt a very bad lesson for not changing my stock tyres b4 i go track last time. U might say u wont push too hard (this is wat i tell myself too) but u will go lower and lower without u noticing it. haha

 

PS. i am not expert, just to share my experience.

[GTboy]

i am not sure if it is really safe to use a mended tyre on track. if u r an agressive rider on track.

 

so i wont dare say it is safe......especially on a soft compound tyres. to reduce the risk, maybe u can mend it from inside....better still, change tyre.

 

well....i'm in no position to say safe or not, but i will tell u guys my fren's crashed. he highsided at exit of last turn PG. Due to his worm blown out of the rear tyre. he is a fast rider.....plus, he freshly mended his tyre at the pit, n went out straight to track. i wd like to believe, the worm has not yet bonded fully with the tyre compound.

 

so, all i can say is......if u're fast and aggresive, nvr go on track with a freshly mended tyre(with worm). dis is my fren's experience, i am telling u guys. up to u guys to take yr own risk.....

[MC28]

It's a risk of using a patch tire on track, higher risk especially when the patch is at the corner..

 

I myself did use a patch 2CT on track(Patch middle), am not the aggressive rider, did hold well thou but you'll nv know when sh*t happens..

 

The best solution is to of cos change it, alternatively is to patch from the inside..

[anili_450]

i've encounted this once but it punctured during while i was in the track. verry risky. i almost killed myself. i think the best is get new tyres. btw its the only thing that is in contact with the tarmac so i suggest dant be too stingy on tyres. if not jus ride slow.

[GrimReaper]

I used SC2 with a "worm" hole patch. Still could do 1.50s

 

So i dont think its a prob. BTW the "worm is more sticky then my tire. I put my finger to test stikyness.

[MC28]

But provided the worm has been there for awhile already to season in first i guess...

[Chaoz]

i'm also thinking of patching the hole from inside.. at least it's the best solution from changing the whole tire. Heard many good feedback from others who used patched tire on track..

 

Which bike / tire shop provide this service?

 

When sh*t happens, even the best bike, setup, tire, rider also cannot escape..

[redbeacon]

Question:

 

Wouldn't the forces of cornering stretch and skew the tyre's shape which can cause that hole to deform and/or undo that sticky plug?

[phudzlee]

i'm also thinking of patching the hole from inside.. at least it's the best solution from changing the whole tire. Heard many good feedback from others who used patched tire on track..

 

Which bike / tire shop provide this service?

 

When sh*t happens, even the best bike, setup, tire, rider also cannot escape..

 

I patched my tire from the inside at SPC petrol kiosk in Pasir Ris Dr 4. It cost me less den $20.

[Chaoz]

I patched my tire from the inside at SPC petrol kiosk in Pasir Ris Dr 4. It cost me less den $20.

 

are they open on sunday? i heard they will patch with another rubber thingy and burn it to blend with ur current tire right?

[kingpet47]

i patch worm on my racetech k2 1week b4 trackday n i join d 5lap challenge n my fastest laptime that time on my r1 is 1.45 n i dun find any problem wif the patch.. everything feels normal n the grip was as b4... n im an agressive rider.. u can ask msf67... wats important is dat u muz let the worm totally blend wif the shape of ur tyres... i myself wudnt go to track if my tyres is freshly mended... juz my experience...

cheers!

[MC28]

Question:

 

Wouldn't the forces of cornering stretch and skew the tyre's shape which can cause that hole to deform and/or undo that sticky plug?

 

Answer:

 

When the worm kit is inserted into the hole, do note that around 3/4 of the worm is inserted inside & the rest protruding outside to cover up the hole.

 

When the bike moves, the air inside the tire will heat up thus causing the 3/4 extra to be mold into a lump which in turns blocks off the hole(It will cover an area bigger than the hole size) from the inside completely. Not for big hole lobang..

[Chaoz]

i patch worm on my racetech k2 1week b4 trackday n i join d 5lap challenge n my fastest laptime that time on my r1 is 1.45 n i dun find any problem wif the patch.. everything feels normal n the grip was as b4... n im an agressive rider.. u can ask msf67... wats important is dat u muz let the worm totally blend wif the shape of ur tyres... i myself wudnt go to track if my tyres is freshly mended... juz my experience...

cheers!

 

My worm inside for a week already.. and i believe i wun be an aggressive rider. Coz this will be my first track session.. so i'm going to take it easy ba..

 

A lot of examples of the thread about worm or inner patch being able to last and go in track without problem.. so any examples or experiences of unsuccessful tire 'worming' or patching causing problems?

 

Answer:

 

When the worm kit is inserted into the hole, do note that around 3/4 of the worm is inserted inside & the rest protruding outside to cover up the hole.

 

When the bike moves, the air inside the tire will heat up thus causing the 3/4 extra to be mold into a lump which in turns blocks off the hole(It will cover an area bigger than the hole size) from the inside completely.

 

wa nice nice.. thanks for the info. So i assume no worries about worm coming out from inside.. but any chances of it going in from outside?

[MC28]

wa nice nice.. thanks for the info. So i assume no worries about worm coming out from inside.. but any chances of it going in from outside?

 

Yes, when you're so suay until you got another bigger nail hitting the exact same spot...

[cagiva03]

Yes, when you're so suay until you got another bigger nail hitting the exact same spot...

 

 

Wahahahahahaha!!!!! If it was me that sway, then i sell bike take Bus/MRT liao.......

[MC28]

Wahahahahahaha!!!!! If it was me that sway, then i sell bike take Bus/MRT liao.......

 

This one confirm larx bro, if me i also take public siax...

[Hartholomew]

I think its bloody dangerous to used a patched tyre on the track, especially if you are a fast guy.

 

However, there are always situations that even I will do so against my own judgement, eg: I ride all the way to Sepang and get a nail in the rear. But if you had an alternative, dont do it.

 

Worm plug or patch, nobody seems to realise that the belting of the tyre has already been compromised! Adding a worm involves enlarging the hole with a tool that damages the belting even more!! And that's what makes the tyre keep its shape and influences how it handles! Not to mention that the hole that is already created is slowly being ripped open bigger and bigger from the forces tearing at the outside of the tyre!

 

Given that tyre manufacturers manufacture tyres with HUGE tolerances that may probably mean that nothing will happen 9 times out of 10, if you still decided to go for it with a patched tyre.

 

Everyone seems to be ignoring redbeacon, who pointed out that the tyre flexes alot and the patch/plug will never be able to conform to the flex exactly the same as the actual tyre, which in the end, will works it's way loose and fail, since all that is keeping it there is air pressure from inside the tyre and adhesive. You may not know it but the tyre may be losing air everytime you lean over.

 

Another thing is reversing tyres - again I wont do it, but many people do saying that it's ok, but I beg to differ - tread pattern has almost no effect in the dry and only becomes a concern in the wet, but what about belting? most tyres (except for a handful like Metzelers who have 0 degree belting) have angled belts and cross plys that are there to influence how the tyre handles - then you go and turn it around and say that there is no difference???????????????????? Then we might as well say that belting has no effect on tyre handling and ask Pirelli, Metzeler & Michelin to stop wasting their time and our money making the tyres so heavy by adding all this belting nonsense.

 

All I can say is that whoever says there is no difference in handling has probably zero feel for what the tyres are doing or is sooooooooooooooooooooooooooooooooooooooooooo talented that he can overcome all this without even knowing it.

 

If we can afford to have the luxury of going to the track to play with our toys while millions of people are losing jobs around the world, then you should not skimp on your equipment. If you do then you are a miserly bum, which I am sometimes depending on how far away my pay day is.

 

No hard feelings mate,

 

Hartholomew Mamola