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bigdom86
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PostPosted: 08:47 - 22 Sep 2016    Post subject: puncture repair Reply with quote

hi all

last week i sat on my bike after work got going and thought hmmm the handling feels a bit weird, so pulled over to have a quick loook at the bike and found a screw in the back tyre, tyre was half inflated and was still ok for me to ride approx. 10 miles to my friends garage for him to fix the puncture so a small puncture.

is this any different to a car tyre, as i have had a similar puncture repaired on my car tyre and it has lasted me for over 3 years now, however on a motorbike would I be better just getting a new tyre now as I guess there is more pressure exerted on the one wheel vs a car (if that makes sense).

due for service in 200 miles so can switch it over then, has been ok since puncture repair
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skatefreak
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PostPosted: 09:33 - 22 Sep 2016    Post subject: Reply with quote

As far as bikes go, have had a silly string in the back tire of my Track bike for a while now.
I was sceptical at first but its been a good 5-6 track days now and it's holding up just fine!
You'll struggle to abuse a tire more on the road Laughing

These ones.

Have done plenty of my own car tires and friends as well now.

I'm confident it will be fine till the tire wears out.[/url]
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tom_e
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PostPosted: 09:41 - 22 Sep 2016    Post subject: Reply with quote

If it's a proper vulcanised repair it's good for the life of the tyre.

Saying that I had a small puncture the other week and just slung some tyre slime in and it's not lost any pressure over 200 miles later.
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Hong Kong Phooey
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PostPosted: 09:43 - 22 Sep 2016    Post subject: Reply with quote

Tyre manufacturers would say you'll die but I've had 2 strings in a rear and tested at silly speeds.

Make your own mind up but don't start messaging me from beyond the grave if it goes horribly wrong Laughing
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bigdom86
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PostPosted: 10:52 - 22 Sep 2016    Post subject: re Reply with quote

as above it is the string thing which he repaired it with, has held up on my car tyre for years just wondered if any difference with a motorbike tyre (noob question) - sounds like im good to go..... for now.....
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Rogerborg
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PostPosted: 11:01 - 22 Sep 2016    Post subject: Reply with quote

Puncture thread.

String is fine. Worse case, it leaks again and you're back where you started. I'd get your own kit though - basic strings and a stabber cost a few £££, although I prefer the "Stop 'N Go" mushrooms to strings.
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Hong Kong Phooey
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PostPosted: 15:21 - 22 Sep 2016    Post subject: Reply with quote

String kit with co2 fits under the seat of most bikes and means you're less likely to be stranded. Unless you routinely carry a footpump.

Others can fit small electric pumps under their seats.
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M.C
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PostPosted: 16:39 - 22 Sep 2016    Post subject: Reply with quote

I'm a little skeptical, since plugging my rear tyre it loses air quicker than before (and quicker than the front). However I'm a cheap bastard so I'm not replacing it Laughing
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Hong Kong Phooey
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PostPosted: 21:38 - 22 Sep 2016    Post subject: Reply with quote

M.C wrote:
I'm a little skeptical, since plugging my rear tyre it loses air quicker than before (and quicker than the front). However I'm a cheap bastard so I'm not replacing it Laughing


Time to get the soapy water bottle out. You may have another puncture, or leaky rim or valve. Plugs don't always seal so I drop a bit of rubber solution on it to assist. Never failed with that method so long as it's not too big of a hole.
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groovylee
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PostPosted: 21:56 - 22 Sep 2016    Post subject: Reply with quote

I did a silly string repair, complete with extra glue to assist. Lasted over 2000 miles and two Santa pod trips. Was still holding when I changed the tyre through wear. Thumbs Up
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M.C
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PostPosted: 22:02 - 22 Sep 2016    Post subject: Reply with quote

Hong Kong Phooey wrote:
M.C wrote:
I'm a little skeptical, since plugging my rear tyre it loses air quicker than before (and quicker than the front). However I'm a cheap bastard so I'm not replacing it Laughing


Time to get the soapy water bottle out. You may have another puncture, or leaky rim or valve. Plugs don't always seal so I drop a bit of rubber solution on it to assist. Never failed with that method so long as it's not too big of a hole.

I re-sealed it using some glue and it's still the same. Tyre has a number of stones etc., I pulled a small bit of glass out but if I keep doing that I'm gonna have lots of holes in my tyre Smile

A friend said ride somewhere, put the nail back in and get recovery to fix it Thinking
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Hong Kong Phooey
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PostPosted: 22:09 - 22 Sep 2016    Post subject: Reply with quote

M.C wrote:

A friend said ride somewhere, put the nail back in and get recovery to fix it Thinking


If by fixing it they recover you to a tyre fitter who has a shitty selection of tyres at a higher mark up than you'd buy yourself, then I'd just burn the bike instead and phone the insurance. Thumbs Up
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M.C
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PostPosted: 08:53 - 23 Sep 2016    Post subject: Reply with quote

Hong Kong Phooey wrote:

If by fixing it they recover you to a tyre fitter who has a shitty selection of tyres at a higher mark up than you'd buy yourself, then I'd just burn the bike instead and phone the insurance. Thumbs Up

He reckoned they did some magical roadside plug, I'm not gonna find out Smile
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Hong Kong Phooey
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PostPosted: 10:29 - 23 Sep 2016    Post subject: Reply with quote

groovylee wrote:
I did a silly string repair


How did that work out?
https://s-media-cache-ak0.pinimg.com/736x/87/a5/92/87a5923c03941608d3e3419e1c38d5d9.jpg
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kramdra
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PostPosted: 14:25 - 24 Sep 2016    Post subject: Reply with quote

Strings are a very good temporary repair. They take a lot of abuse. However they can fail, particularly as the string gets old. Recommend to replace string repairs with a proper plug within a month.
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bamt
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PostPosted: 14:38 - 24 Sep 2016    Post subject: Reply with quote

M.C wrote:

He reckoned they did some magical roadside plug, I'm not gonna find out Smile


I believe that they typically use the Rema kit - https://www.amazon.co.uk/MOTORCYCLE-PUNCTURE-REPAIR-TUBELESS-SELLER/dp/B001AXK9QQ

I had no luck whatsoever with that - the plugs ripped apart. From what I've heard since, it may just be that I hadn't reamed the hole big enough, or it could be that the tool they supplied was too sharp on the edge that pushes the plug in so cut through it.
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barrkel
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PostPosted: 19:36 - 24 Sep 2016    Post subject: Reply with quote

If a string repair goes bad, your tyre will go flat very quickly - the reamed out hole is usually substantially bigger than an original puncture, especially if it still has the foreign object stuck in.

It's no big deal if you're pottering around town, but if you're on a motorway, the tyre will heat up very quickly and lose what structure it had. You'll have a minute or so to figure out what's going on - it'll feel like the rear is sliding around, or like the bike has a joint in the middle. It happened to me.

Personally, if the tyre is worth saving, I'd get it properly plugged, and only use string to get to a repair guy. I'd trust a properly plugged tyre. However if the tread is any more than 40% worn, I'd get a new tyre.

I've ridden thousands of miles on tyres plugged with strings, and done a half-dozen repairs myself, but one repair that went bad convinced me that it's not worth the risk in the longer term. I'd still plug a commuting scooter, but I wouldn't live with anything I'd expect to do a long distance at high speed on.

One thing you don't want to do is repair the front. If the front goes flat quickly at speed, you'll probably crash.
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Pigeon
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PostPosted: 17:46 - 25 Sep 2016    Post subject: Reply with quote

kramdra wrote:
Strings are a very good temporary repair. They take a lot of abuse. However they can fail, particularly as the string gets old. Recommend to replace string repairs with a proper plug within a month.



I did 12,000 miles inc 3 santa pid days on a string. It did start to leak, after 2 years and 12,001 miles. Re-strung it and it was fine again.

Did replace the tyre shortly after though.
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Matt B
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PostPosted: 08:54 - 26 Sep 2016    Post subject: Reply with quote

barrkel wrote:
the reamed out hole is usually substantially bigger than an original puncture


Substantially bigger? The reamer tool is no bigger than the average screw left laying about by builders that ends up in your tyre.

barrkel wrote:
if you're on a motorway, the tyre will heat up very quickly and lose what structure it had


Explain exactly how a tyre with a few mm diameter plugged hole heats up quickly and loses it's structure. The structure of the tyre is maintained by the multiple layers of ply and steel laid in the rubber.
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