B.RAD Posted December 16, 2014 Share Posted December 16, 2014 Tyre tech time - grab a seat and a cup of tea, it's about to get crazy.... Most tyres contain a limited amount of natural rubber, the compound that makes tyres 'rubbery' (strangely enough!). As a cost saving exercise, manufacturers replace natural rubber with man-made (synthesised) rubber - the cheaper the tyre, the more cheap synthetic rubbish (hence why they're called ditch-finders, they last forever but have no grip whatsoever!), the more expensive the tyre, the more natural compounds, although still only in a relatively low percentage as manufacturers are always judged on tyre longevity, and nice soft supple rubber doesn't last long! Super soft vs medium compound anyone? So basically, a 'standard' tyre isn't going to be fantastic in low temperature - tyresafe.org suggests 7c or below, but it's more like 3c and below - as the synthetic rubber hardens. A great real life example of this is - have you ever noticed how on very cold mornings, if you get up to 50mph plus within the first 1/2 mile or so, it sometimes feels like there's a bit of steering vibration, like wheel misalignment? You have to pay attention, but it's there. This is the tyre solidifying in the cold, creating a small flat spot that goes once the tyre warms up. So in theory, a tyre with more natural rubber will have a lower operating temperature than an average road tyre. Of course, tread pattern and all the other fascinating elements of tyre production play a massive part in cold weather performance, which is why an R888 in soft compound might still not be your ultimate winter tyre! One of the major factors in winter specific (or snow) tyres is that they contain significantly more natural rubber than a standard tyre. You can physically feel the difference if you dig your thumbnail into one, especially if compared to a standard tyre. They also have more tread (between 8 and 13mm, depending on the tyre), and are covered in sipes (slits in the tread blocks) that allow the tread to move, generate heat, grasp snow and flex to uneven surfaces. Because of the increased movement, they do have more sideways roll which takes some getting used to, but is great fun and very predictable! A decent winter tyre will work well for you in all winter conditions, only losing out to a standard tyre when grip comes back out to play. So what does all this mean for the OP? Basically, I'd suggest you invest in either a premium set of all weather tyres just for winter use, or go whole hog and get a proper set of winter tyres on steelies or cheap alloys and know that your Westfield will go out and play, whatever the weather! I'd avoid the likes of R1Rs, T1R's etc as they are more dry weather focused (not saying they're not good in the cold/wet, just comparing to a tyre designed for the purpose). And do bear in mind that ALL tyres suffer the releasing agent issue, so some patience is required on any new tyre. Or, accept the reasons for low performance of standard tyres in winter and expect the slidey-slides! If you've survived this far, I apologise for the useless information I've just downloaded on you, but now you have an insight into my nerdy brain! 3 Quote Link to comment Share on other sites More sharing options...
SootySport Posted December 16, 2014 Share Posted December 16, 2014 i find the t1r ok in the wet but haven't really used them in cold and wet. I used to think T1R's were good in the cold and wet, but since changing to R1R's I found these much better especially in monsoon conditions. Being soft I would think snow tyres would be as good as yer summer trackday tyres for cold and wet roads. They would soon wear out though, in warmer weather. Hope Paul tries a set, would be a good test with the V8 torque going through them. 1 Quote Link to comment Share on other sites More sharing options...
windy Posted December 16, 2014 Share Posted December 16, 2014 It's a myth about winter tyres above 7 deg being useless. I've had the winters on the escort all year and I didn't kill myself. Tried on various cars over the years: Goodyear Ultragrip 8s Vredestein Snowtrac 3 Vredestein Snowtrac Nokians WRC (just bought recently for the van) I've found the snowtrac 3 the best so far, really good grip in the wet at all temperatures, excellent in the ice and snow. My advice would be to pick the Autobild winter test highest rated tyres at the time of purchase and you won't go far wrong. Purchase from oponeo or camskill. Winters are also about 1/2 the price of a good brand summer so consider the switch to save money. I've not found winters wear much quicker than a summer, in my experience. 1 Quote Link to comment Share on other sites More sharing options...
mi7rennie Posted December 17, 2014 Share Posted December 17, 2014 The main issue with using the Westy over the winter is salt and rust to the chassis, that's the reason we put ours away when the salt comes out. If you do want performance winters the Dunlop wintersport 4d is excellent, have them on my S3 and even up to 10 degrees they handle well and are awesome in the snow and ice. Quote Link to comment Share on other sites More sharing options...
dombanks Posted December 17, 2014 Share Posted December 17, 2014 i put mine away cos its chuffin cold! 1 Quote Link to comment Share on other sites More sharing options...
alexander72 Posted December 17, 2014 Share Posted December 17, 2014 BCF you should get a job in the automotive industry mate :-) 1 Quote Link to comment Share on other sites More sharing options...
B.RAD Posted December 17, 2014 Share Posted December 17, 2014 BCF you should get a job in the automotive industry mate :-) Now there's an idea! Quote Link to comment Share on other sites More sharing options...
alexander72 Posted December 17, 2014 Share Posted December 17, 2014 Quote Link to comment Share on other sites More sharing options...
windy Posted December 18, 2014 Share Posted December 18, 2014 Bit slippy up in the lakes on Saturday P1060342 by windymill50, on Flickr P1060367 by windymill50, on Flickr Quote Link to comment Share on other sites More sharing options...
M444TTB Posted December 18, 2014 Share Posted December 18, 2014 It's a myth about winter tyres above 7 deg being useless. I've had the winters on the escort all year and I didn't kill myself. Tried on various cars over the years: Goodyear Ultragrip 8s Vredestein Snowtrac 3 Vredestein Snowtrac Nokians WRC (just bought recently for the van) I've found the snowtrac 3 the best so far, really good grip in the wet at all temperatures, excellent in the ice and snow.My advice would be to pick the Autobild winter test highest rated tyres at the time of purchase and you won't go far wrong. Purchase from oponeo or camskill. Winters are also about 1/2 the price of a good brand summer so consider the switch to save money. I've not found winters wear much quicker than a summer, in my experience. They aren't useless, but they are noisy in the dry and make the car feel a bit sloppy. I take mine off when it's no longer single digits temps on the way to / from work. Fantastic things in the ice and snow though. Anyone boring on about how they've never had a problem in the snow is a macho fool in my book. Quote Link to comment Share on other sites More sharing options...
windy Posted December 18, 2014 Share Posted December 18, 2014 They aren't useless, but they are noisy in the dry and make the car feel a bit sloppy. I take mine off when it's no longer single digits temps on the way to / from work. Fantastic things in the ice and snow though. Anyone boring on about how they've never had a problem in the snow is a macho fool in my book. Not found them to be sloppy or much noisier in the dry, but they do whoosh when you accelerate or brake in the wet though. Sipes are opening up in these circumstances and doing a good job at dispersing the water and preventing aquaplaning. Have you also noticed how much less spray winter tyres make behind the car? 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.