Releasing agent

[matlow]

Do tyre manufacturers still use a releasing agent as part of the process? used a ride in ride out service yesterday, when I left the garage it was wetter than a virgin at a Bieber concert. I was stunned by how much grip I had from the off. tyres are PR4's so I was expecting good wet grip but not straight out of the box.

so does anyone know if releasing agents are still used? or was it some quirk of the gods and the wet roads that made them so instantly usable.
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Hornet 600, CBR600F, 929 blade, 07 R1, R1200GS, 09 Blade, 750 SRAD, ZZR1200, 954 Blade, KTM 990 Adventure, Ducati 749s

[P.]

People say yes, people say no. Just ride it as you normally do and don't give it 10000000% until tyre is sufficiently warm.

It'll be down to people giving beans when cold.

[MarJay]

Some manufacturers use it, but not very many nowadays. The issue is the surface of the rubber is smooth so water forms a fine layer, like aquaplaning I guess. You do need to take it easy but you might find that the new rubber is better than the old rubber just because the old tyres were completely dead.

Take it easy for a hundred miles or so, and then check the chicken strips etc. If it still has some, build up lean slowly. If you've already managed to get your elbow down, you can ride with impunity.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[chickenstrip]

Avoiding using great handfuls of throttle seems to me to be the more important thing on brand new tyres, rather than lean angles. With PRs, as soon as I've used the full width of the tyre, I pretty much consider them scrubbed. It usually takes me less than a day out on the bike to do it, 50 miles or so on some good twisty roads seems to be ample. I always give the tyres a couple of miles to warm up a bit before pushing things too hard though.
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Chickenystripgeezer's Biking Life (Latest update 19/10/18) Belgium, France, Italy, Austria tour 2016 Picos de Europa, Pyrenees and French Alps tour 2017 Scotland Trip 1, now with BONUS FEATURE edit, 5/10/19, on page 2 Scotland Trip 2 Luxembourg, Black Forest, Switzerland, Vosges Trip 2017
THERE'S MILLIONS OF CHICKENSTRIPS OUT THERE!

[Rogerborg]

[owl]

when I had the roadtec 01's fitted the guy said they didn't need much scrubbing, it was raining when I left the workshop and they felt fine once they got up to temp, way more grippy than the rosso II's that were on before
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Observation is the greatest source of wisdom.

[goto10]

[MarJay]

There was an article in a copy of Performance Bikes that I recycled a few months back... it basically said that only one manufacturer they contacted still uses releasing agent in their motorcycle tyre moulds, and it wasn't a very well known one.

I don't think I still have the mag (as I said I'm pretty sure I put it out for recycling) but unfortunately I can't seem to find an equivalent article or citation on the internet after my 20 seconds of Googling.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[Matt B]

Most manufacturers use a mould that does not require release agents nowadays. Citation:

[t121anf]

Old thread but brand responses.

https://www.gixxer.com/forums/33-general-bike-talk/176572-new-tire-mold-release-fact-fiction.html

[notabikeranym...]

Always thought it was to do with heat cycles & scuffing the surface.

Common sense tells me not to lean over on a very smooth and cold tyre.

I like to go with big straight line acceleration and hard braking first to get heat into the front and rear, followed up by progressively leaning it over.

Probably all in my head, but I haven't binned it on the 3 sets of new tyres I've ridden on in the past 2 years using this "break in method".

Might be breaking in some new tyres when it gets warmer anyway, I don't like my current tyres very much.

[Hong Kong Phooey]

Pr4 fanboi here, uncanny isn't it?

I stuck a set on, 200 yards from new onto wet fresh tarmac and they felt better than the Avon storm 2 ultras I'd just took off.
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'81 CG125, '97 FZS600 : '99 CBR600F4, '09 KTM RC8

[chickenstrip]

[kgm]

I had a couple of slight slippy moments with the pr4s I put on earlier in the winter for the first couple of days and they were fine after that. It was very wet, very cold and a really short commute though so could just have been particularly crappy road conditions.

[Hong Kong Phooey]

[chickenstrip]

[Snod Blatter]

I've tried quite a few brands of tyre, and thought the old releasing agent thing had been consigned to history along with wet weather lag on disc brakes and boiling chains on the stove.. Until I had a Bridgestone TW202 fitted. That was like riding on lightly melting ice with a coating of oil on the top for the first 30 metres, I didn't know if I was going to make it round the first bend of my street even at 10MPH.

Very scary, I'll never trust a brand new tyre again. Otherwise, tyres from Nankang/GoldenTyre/Heidenau/Metzeler/Michelin/Continental/Avon/Pirelli have all been perfectly fine. Bridgestone, sort yourselves out!
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1994 CB250, 1984 CBX250RS-E, 1989 K100RS, 1995 TRX850, 2016 Z250SL

[Hong Kong Phooey]

[arry]

[ThatDippyTwat]

Previous owner on the little YBR fitted some OEM Cheng Shins and it didn't turn a wheel before I bought it (fucked crankshaft bearing), so it was less of a chicken strip, and more like the whole tyre was covered.

That was an interesting experience. Brand new tyre, felt terrible, but not dangerous, from the get-go.

Replaced with Avon Streetrunners after getting sick of it at 3K, and it's instantly loads better.
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'98 VFR800 (touring) - '12 VFR800 Crosrunner (Commuting) - '01 KDX220 (Big Green Antisocial Machine)

[Pigeon]

[subpardave]

I utterly love the PR series, but really wish they'd make them in a wider range of sizes!
Sadly, email to Michelin basically got a 'no plans for 180/60 ZR17 at all'

[Matt B]

[P.]

[subpardave]