Do they go big enough?
(TKC 80 too macho for road use)
I got stuck in light mud on with Battlewings on a light trail ride. Mud was neither deep not very wet. I have decided the BWs are going to go. I have a buddy with TKCs on his 950 KTM and he loves them. My only concerns is how the TKCs will do on wet tarmack? Any info would be great.


Hi,
I have been looking in to getting some heavy duty inner tubes for my F800GS. I have found some michelin ones that fit the front apparently (90/90 21) but can't find any for the back (150/70 17). The nearest I can find (from Michelins web site is 140/80 17 which I'm not sure would work). Can anyone point me in the right direction?
Thanks
Adrian
I ride my R1150GS every day, whatever the weather and at present have TKC80s on. I wouldn't normally use them in the winter but finances stopped me changing to my normal winter tyre.
When the TKCs are new, you will sort of "fall" into corners. As they wear down a little this changes and they're fine.
They are great in mud, they are even really good in snow (not that I want to do that again). But in the rain, I have found them not so good. They are very twitchy and prone to the back end losing a bit of grip on bends this being due to there being less actual rubber contact with the tarmac on a TKC80 than on other tyres.
If you ride on various terrains and in varying weather the TKC80s are probably the most suited. But, for personal preference, as I don't do offroading in the winter I have to say Metzler Tourances are the best for riding in the wet.
I'd say enjoy your TKCs but be aware they can catch you out when it's raining.
Obviously, the above is my personal opinion and tyres are a very personal choice so I'm sure someone else is going to come along and have had very different experiences from mine.![]()

i think u will regret a change to more offroad style rubber, in the summer anyway, you ride too fast for knobblies
Apparently there are 4mm thick tubes that can be used with Metzeler Tubeless Tourance tyres on the 800gs i don't know if they are Metzeler tubes though.
I am sure if you contact Cambrian Tyres
http://www.cambriantyres.co.uk/
They supply to the trade they will point you in the right direction.
Or contact Stuart at National Tyres Shambles Street Barnsley he is another excellent source of info.
I've just googled Trial Assists and came up with nothing - do you have a manufacturer or a proper name for the tyre?
I've just put 200km on my TKC80's and I think they're going to be ok, but I'm still reluctant to take too much p1ss out of them in the wet.
Bike did an interesting comparison last year. They tested 'big trail bike' tyres at Bruntingthorpe on an R1200GS..... the times were interesting to say the least! From fast to slow they were:
Avon Storm/Azaro combination: 11:17:75
BT020 1:17:85
Metzeler Roadtec M6 1:18:05
Michelin Pilot Road: 1:18:75
Conti Road Attack: 1:18:54
Conti TKC80: 1:18:75
The 020's were given the best overall rating in terms of feedback and overall performance, but the TKC80's were only a second behind... yes, just 1 second!! The tester did comment that the rear was spinning in all but 6th gear and the front was 'pushing' a lot (what exactly does that mean?) but to be only a second behind a proper road tyre like the 020 is staggering! He must have the bike control skills of a god, but it just shows what the good ol' Twinduro can do...
Greg