"New" Tires in the Rain - how many km?

iav8

Well-known member
After riding on my new tires for about 750 km, mostly on hot smooth roads with some on rouch roads or gravel. I finally decided to try them out in the rain. It was pretty sketchy - not even close to the grip my old tires had. It rained all day, so I don't think the slick of a fresh rain was a factor. I ride a DL650 Vstrom, the old tires were Trailwings and the new ones are Tourances. I searched quite a bit: most sites suggest 100 to 200 km for break-in, but perhaps they don't ride in the rain... OR perhaps my tires are just cr^p in the rain.

How many km after putting on your new tires did you feel they were completely broken in for wet conditions?
 
1 - 5 KMS....?

Tires will never be as grippy in the rain vs dry. I personally prefer the Pilot Road 2's or Road 3s in the rain.
 
Breaking in tires is for the purpose of scrubbing off the slippery mold-release compounds they use in tire manfacturing. 750km? Your tires are long broken in.
Really only need 100 kms or so, depending on how far up the sidewalls you're willing to lean!
 
maybe there too hard...whats your psi?
 
Breaking in tires is for the purpose of scrubbing off the slippery mold-release compounds they use in tire manfacturing. 750km? Your tires are long broken in.
Really only need 100 kms or so, depending on how far up the sidewalls you're willing to lean!
That is what I figured, but hoped to hear something else as these new tires are no where near as good in the rain as my old ones. In fact, the old heavily worn Trailwings were more grippy in the rain just before I changed them than these Tourances are now. I guess I'll just have to take it a lot easier than I used to in the rain. :sad1: The upside is that I feel far more confident in dry conditions with the new tires - a trade-off I guess.
 
Do you have the original Tourance, or the new Tourance EXP?

I picked up my '05 Wee with new EXPs, which are getting pretty worn down, and am curious how the non-EXP line will perform when I switch them soon.

Reviews and comparisons between the two seem to offer conflicting opinions, but what I've generally read is that the EXPs don't last nearly as long and don't handle as well off-pavement, but yet perform better in wet conditions vs the originals.

From my own experience, I've been pretty confident in the EXPs in wet conditions, have done 140-160kph testing them in a downpour on the highway with good results. I do feel they slip around more than I'd like on gravel -- which could however be due to my own limited experience & comfort on the stuff. I can tell you from experience they don't work well in snow... ;)
 
2 weeks ago i put brand new pirelli diablo rosso corsa on my bike.
road it home from the shop in the rain, perfectly fine
went for a night ride in the rain hit about 140 up the 404 on a slight curve 100% confident and fine

it might be the tires you have on, im wondering if they sold you tires that have been sitting on the shelf for a while so even though they are brand new they might have been on the shelf for a few years?

and maybe your old set of tires have a higher wet grip rating than your new ones?

either way i dont think you need to be told this but just be sure to accerlate slower, less lean and slower speed through out corners as well as brake earlier.


and as everyone has said already your tires are long broken in
 
Breaking in tires is for the purpose of scrubbing off the slippery mold-release compounds they use in tire manfacturing. 750km? Your tires are long broken in.
Really only need 100 kms or so, depending on how far up the sidewalls you're willing to lean!

This has been covered in many threads in the past. Mold release compounds haven't been used on motorcycle tires in years.

New tires are always better in the rain than older ones. The sharp edges on the tread channel water better than rounded edges.
 
sircastic;1872858 New tires are always better in the rain than older ones. The sharp edges on the tread channel water better than rounded edges.[/QUOTE said:
Apparently not...

I'd say that different compounds in tires will perform under different conditions. Maybe your last tires were better in the rain, are your new tires known for having good tread life? That would suggest poorer traction
 
Apparently not...

I'd say that different compounds in tires will perform under different conditions. Maybe your last tires were better in the rain, are your new tires known for having good tread life? That would suggest poorer traction

Compounds are no where near as important when channelling water as the quality of the sipes. The tires aren't typically at a temp when dealing with standing water that compounds make a difference. Soft vs. med. vs. hard compounds of the same street tire are going to have very similar traction in the wet. The quantity and quality of the sipes are what matter when dealing with water.
 
well wouldn't varying widths of the channels also affect it? It comes to tire design right? Whichever channels have the largest volume, plus whichever rubber operates the best.
 
well wouldn't varying widths of the channels also affect it? It comes to tire design right? Whichever channels have the largest volume, plus whichever rubber operates the best.

Not as important as the tread.... that channeling tread has to be sharp and rigid as possible. Regardless of what compound tire you have, but if the treads are worn in and rounded off the tire will be practically useless in the rain. The depth may look good, but if rounded off you got a ****** rain tire.
 
http://en.wikipedia.org/wiki/Rain_tyre

Was what I could find looking it up, I don't understand why the sharpness at the edge of the channel is so important. Understanding of course that those were race tires they were speaking about, intuitively it seems like tread depth and width matters a lot, same with whatever rubber does come into contact with the ground. If you can get it to heat up more then it should be more effective as well.

Care to explain the physics behind it?
 
Not as important as the tread.... that channeling tread has to be sharp and rigid as possible. Regardless of what compound tire you have, but if the treads are worn in and rounded off the tire will be practically useless in the rain. The depth may look good, but if rounded off you got a ****** rain tire.

I agree with dsoup. Compounds can make a difference, older tires used to have little silica in them, now every manufacturer is boasting silica for wet grip. My sport touring tire has better wet & cold grip than ss tires i've been using. I would never go back to ss tires for the street

Sent from my phone using my paws
 
If the edges are worn in or rounded off it could allow for water to seep through while it's in transit, so it could be dispersed horizontally onto the actual contact/rubber part of the tire opposed to being thrown veritcally/upward (ever watch MotoGP or SBK races in the rain? Check out the "rooster tails" coming off the tire. That's the water being channeled backwards through the tread. you want as much of that as possible).
 
I have a '05 wee. Dual sport tires are always about trade off's. Pavement vs. gravel, wet grip vs dry.

I despised the Trailwings with a passion. Really hated them and how they handled. Tourances I found ok all around, little slippy in the wet. Battlewings had amazing wet and dry grip on paved surfaces but kinda sucked in the gravel. Trying some Shinko E705's (radials) out now. Gravel and dry pavement is good but wet pavement is kinda sketchy but I think thats becuase I'm coming off the Battlewings..
 
I've away on vacation for over two weeks :) Let's catch up on this thread:
maybe there too hard...whats your psi?
When I experienced the problems in the rain I was running at recommended pressure (33f;36r). After playing some reading and playing with pressures on my Trailwings, I was used to having them at about 4psi above that. Perhaps I should try *more* pressure. In my less-than-expert understanding, that may help if the "sharper tread" theory holds true. (feel free to blow that naïve idea out of the water if you have better information).

In any event, the Metzeler website has this to offer - I'm going to try it out:
Always inflate tires to the correct tire pressure as indicated in the owner’s manual. However Metzeler US has found that running higher air pressures as indicated in it’s fitment guide will increase customer satisfaction with it’s products.

Do you have the original Tourance, or the new Tourance EXP?
These are the original Tourance *not* the EXP. I read some of those mixed opinions but many seemed to suggest that the Tourance (EXP or not) would behave better that what came stock on the bike. There are trade-offs as you pointed out: wet vs. gravel.

it might be the tires you have on, im wondering if they sold you tires that have been sitting on the shelf for a while so even though they are brand new they might have been on the shelf for a few years?

and maybe your old set of tires have a higher wet grip rating than your new ones?
Manufacture date was the first thing I checked after that slippery ride in the rain: according to the sidewall they were made in the 8th week of 2012.

New tires are always better in the rain than older ones. The sharp edges on the tread channel water better than rounded edges.
I would agree if we added the stipulation that the old and new were "of the same brand and model."

At this point there was the short debate over compound vs. tread design. From this single experience, I might have rested on the compound side of the argument as the tread on my old tire was all but demolished. However, I will reserve my opinion until I have the opportunity to try the new tires with different pressures to see if that has a bearing.

I have a '05 wee. Dual sport tires are always about trade off's. Pavement vs. gravel, wet grip vs dry.

I despised the Trailwings with a passion. Really hated them and how they handled. Tourances I found ok all around, little slippy in the wet. Battlewings had amazing wet and dry grip on paved surfaces but kinda sucked in the gravel. Trying some Shinko E705's (radials) out now. Gravel and dry pavement is good but wet pavement is kinda sketchy but I think thats becuase I'm coming off the Battlewings..
Thanks for your quick reviews, skip: I look forward to riding through that many set of tires myself! We agree that there are tradeoffs, and I guess I picked a tire that is "OK all around." The Tourance certainly feels more confident on dry pavement and gravel. I was not expecting that the gravel performance improvement would feel like a reduced performance in rain... on my next set of tires I will have to choose carefully.

Thanks to all for your input.
 
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