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it's about an hour......
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Discussion Starter #1
I have a set of TKC80's and the rear is extremely worn. It passed an MOT a few weeks ago but got an advisory on the rear tyre. Since then Ive done about 300 miles with 100 of these off road. The centre is very worn but the walls are fine.

I am planning a trip to the Outer Hebridies a week on Friday, will be around a 2000 miles round trip. Question is do I risk it on this tyre?

Will it last another 2000 mies road use. I will mainly be sticking to the smaller roads and occasional off road use where possible.

What I dont want to do is stick another TKC80 on for it to get trashed with 2000 miles road use.

Any recomendations from people in the know? Will this tyre do me until I return. Then I can get a new one fitted?

What are the risks of riding with a very worn tyre? Apart from the obvious of no grip...esspecially in the wet?

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Registered
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2,992 Posts
I used to run TKC80 on my RD03.

My last set were looking just like that, and I did not like the way the bike behaved. I well worn TKC80 is not behaving well on the road, or sand for that matter.

Also I were driving most of the time on Tarmac, and with loaded bags, warm summer weather, and speeds often reaching 120 km/h, the remaining rubber were eaten away horribly fast.
I was at one time not even sure they would get me home, so I had to ease down on the throttle and start driving slower.

Now I use Anakee 2, and I must say that they perform very well on Tarmac, both dry and wet.

I will test them on sand next week, but I have no hopes of them performing nearly as well as the TKC80 in the sand.

//Kjell
 

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Hill Rider
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3,089 Posts
"That tyre winae mak it Captain" said in a Scotty type voice, of course :D

Handling's been mentioned (or lack of it), but be aware that you'll pick up a puncture far easier with that level of wear.
Also, the roads up here tend to eat tyres - nothing to do with speed, honest hofficer :rolleyes:, the road surface tends to be grippier due to our more wintery winters. I reckon you'd loose what tread you've got left on that tyre, on the roads in the Highlands, in less than a thousand miles. I've also noticed that wear rate seems to increase, the less tread you have left on your tyre. Might be an illusion or there may be some science that explains it, I don't know.

Final thought - if it was me, I'd change it for a dual purpose type tyre (Annakee / Tourance / Escape etc, etc) before i left home on a 2k mile trip.

Just my tuppence worth :thumbup:

Steve T

:cool:
 

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it's about an hour......
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2,198 Posts
Discussion Starter #5
Thanks for the advice...think I will get it changed next week (planning on hitting the trails for a few hours on Sunday. Im away at the in laws BBQ but Im sure I can sneak away for a few hours to 'finish' my tyre off!!).

Was thinking about sticking a dual tyre on just for this trip then buying a TKC80 when I return.

Can I use a TKC80 on the front and a different make on the rear - or is that just a stupid idea.

Or I could just stick another TKC80 on the rear and just accept the fact that after my trip + Galloway it will be well on its way to needing replacing before winter.
 

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OVALTEENY !!!
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6,063 Posts
Mixing tyres is not a good idea especially crossply with radial

The worn TKC will be more prone to punctures given where and how you ride. Rear is more of a pain than the front for in the field repairs.

I would bite the bullet and go TKC again. Or just change both for a set of Heidenau K60s like mine that should last your trip and scotland and more. Then just get another TKC for winter if you feel the need

If you don't like the K60s I'd buy them off you
 

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it's about an hour......
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2,198 Posts
Discussion Starter #7
Mixing tyres is not a good idea especially crossply with radial

The worn TKC will be more prone to punctures given where and how you ride. Rear is more of a pain than the front for in the field repairs.

I would bite the bullet and go TKC again. Or just change both for a set of Heidenau K60s like mine that should last your trip and scotland and more. Then just get another TKC for winter if you feel the need

If you don't like the K60s I'd buy them off you
Thanks Paul, wheres a good place to buy tyres from round where we live? Only place I know is a contact from MotoBike in Warrington. They have the TKC80 for £102 for the rear. Depending on the price of K60's (this place doesnt sell them) I may get a set. I can see a lot of road riding coming up in the next few months, my trip, Galloway, National.......so may be best with Dual Sport. Obviously if it is costly to get a pair then I may just stick with a new rear TKC80.
 

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OVALTEENY !!!
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6,063 Posts
Thanks Paul, wheres a good place to buy tyres from round where we live? Only place I know is a contact from MotoBike in Warrington. They have the TKC80 for £102 for the rear. Depending on the price of K60's (this place doesnt sell them) I may get a set. I can see a lot of road riding coming up in the next few months, my trip, Galloway, National.......so may be best with Dual Sport. Obviously if it is costly to get a pair then I may just stick with a new rear TKC80.

Just phoned Moto Tyres on 0800 3286532 rear K60 £78.10 front £44.10 including postage

Add £10 for fitting if you don't want skinned knuckles !!
 

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it's about an hour......
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2,198 Posts
Discussion Starter #10
Just phoned Moto Tyres on 0800 3286532 rear K60 £78.10 front £44.10 including postage

Add £10 for fitting if you don't want skinned knuckles !!
thanks Paul, just phoned up and found it hard trying to order tyres. Got the tyre from the haynes manual as...

90/90-21 54S for the fronts
140/80-R17 69H for the rears

I dont have a clue what this means (apart from 21 and 17 that I am know is wheel size).

The opearator said they dont have any S models in stock...and I think this is related to speed. Only H (max 130mph) and T (max 118mph). I explained that the @ will only do 110mph but she seemed concerned about which was the right tyre.

So I am confused!!!!! I was hoping to phone up and give the required tyre and make of my bike and get tyres. Will pop round to see you later. I take it you have ordered tyres from here before?
 

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Generalissimo Tea Boy
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6,031 Posts
thanks Paul, just phoned up and found it hard trying to order tyres. Got the tyre from the haynes manual as...

90/90-21 54S for the fronts
140/80-R17 69H for the rears

I dont have a clue what this means (apart from 21 and 17 that I am know is wheel size).

The opearator said they dont have any S models in stock...and I think this is related to speed. Only H (max 130mph) and T (max 118mph). I explained that the @ will only do 110mph but she seemed concerned about which was the right tyre.

So I am confused!!!!! I was hoping to phone up and give the required tyre and make of my bike and get tyres. Will pop round to see you later. I take it you have ordered tyres from here before?
Older Africa Twins used S rated tyres, they then changed to H rated.

As for the sizes it's quite easy, the first number is the width in millimeters, the second number is the depth of the tyre as a ratio of the width, so

90/90-21 is a tyre 90mm wide and 90% of 90mm deep for a 21 inch rim.

140/80-17 is a tyre 140mm wide and 80% of 140mm deep on a 17 inch rim.

If you want innertube sizes, convert the tyre width into inches and pick the tube that covers that size in it's overall range (printed on the box or the tube itself) and is the right diameter.

No idea why they mix metric and imperial measurements in one size though.
 

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it's about an hour......
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2,198 Posts
Discussion Starter #13
Thanks to all that replied.

I have just ordered a pair of K60's from www.mytyres.co.uk (thanks Paul) - the website was better than the order line (once I was told what the tyre breakdown was (thanks Yen)!!)

Total for both tyres = £122.40....

Im looking forward to seeing how they differ from my TKC80's. Although I like the TKC's for my trail riding, on the road the front end always seems loose. I have put this down to the knobblies so will be interesting to see if this wobble changes with the K60's
 

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hedgerow specialist...
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1,398 Posts
you wont regret it;)
I went from Tourance to K60`s on the Alp and so far they stick the same if a little roar But hey at least they stick in the soft stuff.

not tried them in the wet yet:clown: as we`ve had littlerain down here all the grass is brown.
 
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