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#11 |
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Just for clarifiction The new generation rears are supposed to be run at much lower pressures than the "older" versions. Running the Dunlop 211GP, Power One at the usual 28-31psi Hot will lead to massive cold tearing (and the usual complaints that they don't last long).
The racetec interact is less affected as its supposed to be run at a slightly higher 24psi hot. Saying that, out of the three, I ran the Interact at 28-29psi Hot and it was fine. the other two most definitely were not. Acording to the Michelin Power One website you are supposed to run the front at 2.1 bar (30.5 psi ) and the rear at 1.9 bar (27.5 psi)(hot) but its now commonly regarded at being 19-21psi rear pressure hot. That stops the tearing. I ran these (very dubiously) at 21psi hot at a Cadwell track day with an air temp of just 6 degrees. As it was open pit lane, I decided to give it a go and I was amazed when it worked. Chatting later to the Tyre guy at Croft, about some mild tearing even at 21psi hot he told me to go down to 18-19psi hot and it worked. This was on the 600. When I ran the 211 GP NTEC at Knockhill on a cold, drying, October track day it was ripped to shreads at 29psi hot. According to the Fitment recommendations the front should be 33psi hot and the rear 21 cold or 23psi hot. I had a long conversation with Dunlop about the GP209 ( not GP211) tyres for the Sv about two months back and the recommendation for them for the Sv was 34-35 hot bck and front. They said thats what the Isle of Man and NW200 guys are running. They said nothing about the 211GP being made in the Sv size. But this is great news whether its the older pre NTEC version or the standard one. They were great on the 600. Metzeler are a lot more cagey about recommending race pressures but with a bit of digging you can find a bit. I ran them at 31 hot front and 28.5 hot rear. But we're not talking about them in this thread as they don't do Sv sizes. ![]() As I said earier the Power ones are more prone to suspension set up and needed a lot more accuracy in settings. The Pirellis seemed a lot more "complient" and "mushier" The Power one is affected more by bumps. I also found the bike anted to shake its head more with the V profile front tyre especially on the straight coming down to Esses 1 at East Fortune in a cross wind. This might not happen with the A or B std profile fronts. It might be due to the shape of the V profile. I'd be tempted to go with the GP211 if they do come out in SV sizes. Especially as they're usually cheaper, made in the UK and have great feel. Very tempted. The only issue with the power ones that stopped me racing on them last year was the cold left hand side of the tyre (even out of the warmers). As Snake is the first left hander at East fortune and its a nasty place to have the rear go on the first two laps, in the mellay (shouldn't affect you too much Toot, you should be in the lead! ![]() I'm off to surf for GP211's in 120/160 sizes ![]() C Last edited by Berlin; 16-12-10 at 09:49 AM. |
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#12 | |||
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#13 |
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sorry Toot, that was the 209 pressures. Forgot to mention Mark at Holbeach tyres should be able to help you out with tyres. Great bloke
Last edited by HUTCH55; 16-12-10 at 11:31 AM. |
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#14 |
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Toot,
Here's the info I got from Dunlop re the GP209 a little while ago.. Still no news on the GP211. I've asked Dunlop for more info about availablility. Dunlop Also use the 523 rubber compound on their "medium" K124 classic race tyres and also the K364 Intermediates. C Last edited by Berlin; 23-12-10 at 08:35 AM. |
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#15 |
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The GP211's (in 160 size) are meant to be widely available from January and are meant carbon copy of the larger profiles.
Also there is an additional Pirelli Diablo that has been made in a 160 profile, which is available aswel (runs the SC2 compound on the edges, can think which one it is).
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RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi |
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#16 |
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Thanks for that Carl. I'm not interested in the 209. I would not be interested in running them at all. Would think about the 211's though.
Think i will be trying both out and decide from that really. Need to get on some test days when the weather breaks. ![]() |
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#17 |
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why has no one mentioned the avon viper sport?
Ive used them for ages and they've never let me down. |
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#18 |
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Because the thread is about using Michelins or Dunlops as these are the only two makes on offer from my sponser Mike
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#19 |
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Seems like a few sites are adverising GP211's in a 160 rear now.
Here for £263 ![]() http://www.motorcycletyresuk.com/mar...b%20Prices.htm After a bit more searching, i think they on come in the endurance compound though ![]() Last edited by toot; 30-12-10 at 05:52 PM. |
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#20 | |
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If the endurance spec do exist they will be a bargin
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RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi |
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