Oh shit!

[breakaway]

Was admiring the sexay rear end of my K1 while I saw what looked like some bird poop on the tyre, Got a bit closer, only to find it wasn't bird poop but something more sinister!

<img src='http://iforce.co.nz/i/20af061e3e6f74e9e730df64ff769416.JPG'/>

:weep: :weep: :weep:

At least I've already done 3900 KM on it, so not a total loss, but still looks like it has a fair amount of life left in it :weep:

[Boob Johnson]

Do......not......want!!!

[TimeOut]

Bugger

Good spotting though

[Renegade]

i found the same thing once, i propmtly went and bought a puncture repair kit for under my seat, cos god knows where i picked up a screw in my tyre and if it had of gone flat on me i would have been screwed.

Since having a puncture repair kit i have never had a puncture.

[jaymzw]

Pull it out!

I dare you!

[bsasuper]

In desperation once, having no repair kit I pulled out a large nail and plugged the hole with a self tapper, no problem at all for the 200km ride to get a proper plug.

[NZ CBR]

Im no mechanic, but I heard if you add another screw on the opp side it will even out the tyre and wack 3.4sec off your 1/4mile time!!

Also drilling a hole in your fuel tank and leaking av gas onto your sparkplugs should gain the same result.

Happy to help.

:2thumbsup

[MSTRS]

What's the problem? Just get it plugged from the inside. Your bike shop can do it with good results.

[Boob Johnson]

What's the problem? Just get it plugged from the inside. Your bike shop can do it with good results.
How safe is that? <_<

[Bonez]

What's the problem? Just get it plugged from the inside. Your bike shop can do it with good results.If breakaway replaces it I'm sure Lance will want to snap it up. His "commuting" tyres are getting a bit thin on the ground.

[Taz]

Yeah get it repaired. Safe as houses.

[boman]

How safe is that? <_<

As long as the hole is no bigger than 6mm, and you haven't ridden it flat, it is as safe as. I have done this many times and have never had one fail.

[breakaway]

I've got a bit of a problem now, I'm worried the tyre will be flat as a pancake when the tyre shop opens tomorrow, and the local petrol stations' air hose is broken, so Ive got to ride a few K's before I can fill it up again. Trying to source a pump or something atm.

I'd like to not have to replace it, but if it's a saftey issue then I guess I'll have to.

[Boob Johnson]

As long as the hole is no bigger than 6mm, and you haven't ridden it flat, it is as safe as. I have done this many times and have never had one fail.
Mmmmmmm <_<

[Gubb]

That's AWESOME news!

It's burnout time!

[Damon]

Pull it out!

I dare you!

:lol: i did that once, then thought to my self "what a dick!" and then as the tyre went down the bike fell off it's stand....:(

[MSTRS]

What's the problem? Just get it plugged from the inside. Your bike shop can do it with good results.


How safe is that? <_<


Yeah get it repaired. Safe as houses.


As long as the hole is no bigger than 6mm, and you haven't ridden it flat, it is as safe as. I have done this many times and have never had one fail.


Mmmmmmm <_<

I detect some resistance to the idea of a proper repair. I (we?) are not talking about the roadside 'dog poo'-type, applied with a big needle from the outside...
A proper repair is the same as done on tubeless car tyres. The hole is routered to make it an even shape, a patch is then applied with vulcanising glue on the inner side of the carcass. This patch is similar in shape to a drawing pin (the old type with the flat head and pointy bit). The pointy bit is drawn through the hole and the head seats hard against the inner surface of the carcass. With glue and air pressure, how can it fail?

[breakaway]

It hasn't deflated much yet, and I'm headed out to the tyre shop in a bit. Will post back, with pictures of course!!

[vifferman]

I'v had three (proper) repairs done in the last few years, two of which were on near-new tyres. All were perfectly OK to ride on, and all were in the middle of the tyre. I have heard that if the puncture is in the sidewall of the tyre it's potentially less safe (due to damage to the belts in the tyre??) but I don't know if this is true. With any puncture, a lot depends on how big the hole is, and how much damage it's done.
I'm certainly not going to throw away a $300+ tyre just because it's got a nail in it.

While I've removed several foreign bodies such as glass, nails, etc. from tyres, generally it's better to leave them in. The last nail I pulled out (not knowing how long it was, and whether it had gone all the way through) deflated the tyre pretty quickly.
OTOH, if you do pull a nail, screw or whatever out, at least you know if it's gone right through, and don't risk further damage to the tyre or something naughty happening while you're riding.

I've had 6 punctures in bike tyres now, I think, and never a front tyre.

[breakaway]

Okay it's fixed, cost me $20. Hope it holds. It's nearly $400 for a rear BT016 :weep: The guy at the shop reckoned it'll be alright.

<img src='http://iforce.co.nz/i/ea24dba5f32801ef50e890484b7770b6.JPG'/>

<img src='http://iforce.co.nz/i/34fa6c91ad481ab0c46b45e8818c99ff.JPG'/>

[grusomhat]

Man that looks like an ugly repair job. Mind you, I've never seen one before and I'm sure it wears down to look normal pretty fast.

$20 is a nice cheap fix, awesome.

[boman]

Did they take the tyre off at all. That looks remarkably like a string repair done from the outside in. They were looking at making those illegal when I was in the trade.

[MSTRS]

Did they take the tyre off at all. That looks remarkably like a string repair done from the outside in. They were looking at making those illegal when I was in the trade.

I think you are right. Doesn't look like what I described. If it isn't an 'inside' job, then don't trust it. Not money well-spent.

[lankyman]

How safe is that? <_<

Yea, I wouldn't muck round with that on a bike tyre. All good on a car when you've go another tyre on the other side to hold you to the road when one blows out.

[Pussy]

The proper plugs as described by MSTRS are good as gold... I have never had a problem with them

[breakaway]

The tyre started leaking again recently (albeit quite slowly - lost 20psi over 2 days), so I took it to Mike at Drury tyres. He said the repair that cycletreads did was the 'emergency repair' sort, and not a proper mushroom plug.

So he put a mushroom plug in for me, and it's good as gold again.

[bikerboy011]

By the way what do you think of the BT016's as am thinking to get me a set. Do they warm up quick?

[sparky.scott]

Ive had one puncture before and was 400kms from the nearest bike shop, luckily one of the guys on the ride had a can of tyre panda (dirty disgusting stick to the rear of your bike stuff it is) which held just long enough to get me there

[scumdog]

Okay it's fixed, cost me $20. Hope it holds. It's nearly $400 for a rear BT016 :weep:

That's kicking the arse off what it costs for BOTH tyres on me H-D, sucks to be a sprotsbike owner......:blink:

[Headbanger]

Did they take the tyre off at all. That looks remarkably like a string repair done from the outside in. They were looking at making those illegal when I was in the trade.

According to my local tireman they are illegal.

He reckoned any sort of plug was not legal. had to be pulled off and done from the inside.

[skidMark]

How safe is that? <_<


I can vouch they are sweet up to at least 190kph

[Headbanger]

Just had a read of the NZ standards for tyre repair and the H&S documentation for tyre fitters. The "rules" were written in 2001 with an amendment in regards to tread depth coming on may 1st this year.

Anyway, They don't say external plugs are illegal , in fact they are never mentioned, They show best practise for fixing a tyre and it involves removing the tyre, cleaning and shaping the puncture point and fixing from the inside.

Interestingly enough their is special information for nearly all other vehicles including ATV's but no mention of (two wheeled) motorbikes.

Personally I've seen a couple tires split after having a plug put in them, and one where the plug came loose, So I wouldn't use one, well, maybe to get home. But if it looked like the mess posted in the pics earlier in the thread I'd be a tad worried.

[p.dath]

Ahh, you just need to pump up your tyre more often now. :-)

[breakaway]

That's kicking the arse off what it costs for BOTH tyres on me H-D, sucks to be a sprotsbike owner......:blink:

Yeah, the whole set set me back $600, and they are predicted to last aroudn 6000-8000 km apparently.


According to my local tireman they are illegal.

He reckoned any sort of plug was not legal. had to be pulled off and done from the inside.

Yep, Mike also said this. The plug they do from outside is for 'temporary repair only', and is only good for getting you home. I've been riding around like this for over 3000 km now. Now that it's fixed, I should get abit more life out of these tyres :ride:


By the way what do you think of the BT016's as am thinking to get me a set. Do they warm up quick?

They're good, I've had the rear come out a few times mid corner and always managed to bring it back under control without any issues.

[klyong82]

Darn would not think Cycletreads use a temporary fix. I got 2 mushroom plugs on my rear and it has lasted for more than 3000km. They did recommend to not ride it more than 200km/h though.

Bikerboy your bike would have come with BT016's as OEM which are crap and would not last long. Somehow I think the BT015 and 016 are hard tyres compared to Michelin PP. But tyres are always a personal choice.

[cambridgedan]

Yeah get it repaired. Safe as houses.

Providing its not a leaky house

[bikerboy011]

Darn would not think Cycletreads use a temporary fix. I got 2 mushroom plugs on my rear and it has lasted for more than 3000km. They did recommend to not ride it more than 200km/h though.

Bikerboy your bike would have come with BT016's as OEM which are crap and would not last long. Somehow I think the BT015 and 016 are hard tyres compared to Michelin PP. But tyres are always a personal choice.


I got the 015's as my OEM tires, am up to 9000ks, am sure i can do another 1000ks before i change them. Lasted quit well.

I was thinking M3's would be a good choice..

[Bass]

That'll buff right out.

[breakaway]

Well here's the 'proper' fix done by Mike at Drury Tyres

<img src='http://iforce.co.nz/i/3jrfnvhy.jpg'/>

In other news I found a set of Michelin PP in my shed, guess I'll try them on next.

[BM-GS]

Last pic looks to be the real thing.

Had mushroom plugs in 3 or 4 tyres (all rears - the front flicks the nail up and the rear rolls over it while the nail's standing up) and never had a problem in many miles, even with occasional sustained bursts of high load & speed (where legal).

Never worked out what the NZ regs for this are like compared to other places, but someone seems to like making up rules which are different to justify their existence. Domestic hot water and Legionaire's, for instance. "Why make a reg to heat water to 70C, only to fit a tempering valve? Oh, you make tempering valves..."

[saltydog]

Yea, I wouldn't muck round with that on a bike tyre. All good on a car when you've go another tyre on the other side to hold you to the road when one blows out.

Yeah I would have biffed it to. Better to be safe then sorry.
But then again......I love new rubber!!!

[Pixie]

Yep, Mike also said this. The plug they do from outside is for 'temporary repair only', and is only good for getting you home. I've been riding around like this for over 3000 km now. Now that it's fixed, I should get abit more life out of these tyres :ride:

I used temporary repairs many times,slime or dog turd.
I temporarily used them till the tyre wore out.
pussies

[Max Preload]

...the repair that cycletreads did was the 'emergency repair' sort, and not a proper mushroom plug.

I can't believe you still go there! What was it happened before - they didn't refit the spacers? Or was it they didn't tighten the front axle? Or both?

[breakaway]

I can't believe you still go there! What was it happened before - they didn't refit the spacers? Or was it they didn't tighten the front axle? Or both?

Both, but I had to go there since it was the closest place that could fix it, didn't really want to be riding for ages with a bolt lodged in the tiyre. Definitely learnt my lesson though.

[Marmoot]

Im no mechanic, but I heard if you add another screw on the opp side it will even out the tyre and wack 3.4sec off your 1/4mile time!!


What an irresponsible idiotic forum troll suggesting something that may endanger others. Don't listen to this twat.

Certainly, if you have even a half brain, you'd know that introducing another matter into the tyre would add intrusion volume and upset your tyre pressure. The most logical thing is to calculate the probable volume of that puncture screw and deduct that from the air volume in your tyre. That way you still have the optimum tyre pressure and avoid running the tyre too hot.

(OTP psi + SV) - SV = OTP.
where OTP = Optimum Tyre Pressure (in psi) and SV = Screw Volume (in cubic mm).

Happy to help.