Ok boffins, what is the deal with scrubbing in tyres..
..
..I know you have to take it easy for the first XX miles, but what is 'taking it easy'? Which parts of your riding should you modify and by how much?
Further to that, I would guess that scrubbing is a gradual process not a digital change that occures after a fixed distance (kind of like running in an engine). So does that mean you should take it 'very easy' initially...reducing to 'easy' after a while before reducing further to 'normal' riding?
I only ask cos I've scrubbed in a few tyres in my time (haven't we all) and I usually start of riding like a right wuss until I forget the tyre is new and revert to normal...
Zathos wrote:I know you have to take it easy for the first XX miles, but what is 'taking it easy'?
Not falling off would be a good start.
Zathos wrote:Which parts of your riding should you modify and by how much?
I would suggest the cornering part should be done with a bit less commitment than usual until the tyres are scrubbed in although from the look of your old rear tyre that shouldn't be a problem
Zathos wrote: I usually start of riding like a right wuss until I forget the tyre is new and revert to normal...
I would suggest that that's probably the correct timescale, however it usually takes quite some time to forget the customary parting words as you leave Sillets "mind it will be a bit slidey coz it's new"
Big Kneed Al (master of the emergency stop & "stand up" comedian) (Super Nanny) wrote:I would suggest the cornering part should be done with a bit less commitment than usual until the tyres are scrubbed in although from the look of your old rear tyre that shouldn't be a problem
As soon as the tyre is not shiney anymore it's scrubbed in , 2 slow laps of Knockhill does the trick , on the road maybe 10 miles taking it easy , sorted :I can't believe it's not butter!
yelloisfriedegg wrote:As soon as the tyre is not shiney anymore it's scrubbed in , 2 slow laps of Knockhill does the trick , on the road maybe 10 miles taking it easy , sorted :I can't believe it's not butter!
Totally agree. One slowish lap of Cadwell followed by a not so slow lap then BANZAI!!! Probably the best way to scrub in a tyre and done so in less than 5 miles.
An old trick I use from the 1980’s and it works.
The sheen on a tyre is a result of the release agent and the smooth metal of the mould and the heat.
When you run a tyre in on the road it does not take long at all matter of miles the problem is what part of the tyre is run in, middle centre yes, but you have still have the sidewalls with a sheen on.
Best way to scrub a tyre in is to put the bike on a centre stand or paddock stand start the engine, put the bike in gear and without any revs let out the clutch apply a very fine paper i.e. (wet and dry or sand paper).
Apply it to the tyre with light pressure and as the sheen goes you will feel the paper gripping the tyre also you can do the whole tyre including sidewalls. It may be advisable to get someone to hold or sit on the bike while in gear.
dbatten12 wrote:An old trick I use from the 1980’s and it works.
The sheen on a tyre is a result of the release agent and the smooth metal of the mould and the heat.
When you run a tyre in on the road it does not take long at all matter of miles the problem is what part of the tyre is run in, middle centre yes, but you have still have the sidewalls with a sheen on.
Best way to scrub a tyre in is to put the bike on a centre stand or paddock stand start the engine, put the bike in gear and without any revs let out the clutch apply a very fine paper i.e. (wet and dry or sand paper).
Apply it to the tyre with light pressure and as the sheen goes you will feel the paper gripping the tyre also you can do the whole tyre including sidewalls. It may be advisable to get someone to hold or sit on the bike while in gear.
dbatten12 wrote:An old trick I use from the 1980’s and it works.
The sheen on a tyre is a result of the release agent and the smooth metal of the mould and the heat.
When you run a tyre in on the road it does not take long at all matter of miles the problem is what part of the tyre is run in, middle centre yes, but you have still have the sidewalls with a sheen on.
Best way to scrub a tyre in is to put the bike on a centre stand or paddock stand start the engine, put the bike in gear and without any revs let out the clutch apply a very fine paper i.e. (wet and dry or sand paper).
Apply it to the tyre with light pressure and as the sheen goes you will feel the paper gripping the tyre also you can do the whole tyre including sidewalls. It may be advisable to get someone to hold or sit on the bike while in gear.
Ah....So that's how to get your tyres scrubbed right to the edge. Never mind any of this knee down heroics...
Why would you want to scrub the sidewalls ? , as I posted before , absolute bollox , it's even a "cut and paste" bollox by the look of it :I can't believe it's not butter!
yelloisfriedegg wrote:Why would you want to scrub the sidewalls ? , as I posted before , absolute bollox , it's even a "cut and paste" bollox by the look of it :I can't believe it's not butter!
yelloisfriedegg wrote:Why would you want to scrub the sidewalls ? , as I posted before , absolute bollox , it's even a "cut and paste" bollox by the look of it :I can't believe it's not butter!
Was supposed to be a joke
I know you were joking , you meant the edge of the tyre though , the man with the two fingers was serious , again , Why scrub the sidewalls ?
I need to make a public apology for being technically incorrect I did say tyre wall when in fact I meant the edge of the tyre as correctly stated by “yelloisfriedeggâ€￾
dbatten12 wrote:I need to make a public apology for being technically incorrect I did say tyre wall when in fact I meant the edge of the tyre as correctly stated by “yelloisfriedeggâ€￾
Please except my apology.
it's still bollox , they don't even use release agent anymore , the modern rubberless tyre doesn't need it
Zathos wrote:
Nice to see that working at Shell hasn't affected your friendly, caring attitude
you asked for advice about scrubbing in tyres , I gave you accurate good advice , the other geezer posted absolute bollox , which one of us do you consider to be friendly and caring ?
......................or would you rather have a pie ? :I can't believe it's not butter!
At the end of the day this could bounce about all day.
I quoted what we did in 1980’s when racing X7’s and LC’s that was the quickest way to scrub them in and be sure they were scrubbed in and IT WORKED.
Now technology may well have changed and the process of producing tyres will have advanced.
The only person who can determine if the tyre is scudded in or not is the rider different styles and different abilities.
Sorry Zathos the advice was never intended to be damaging to yourself or your new machine
Apologies to “yelloisfriedeggâ€￾ it was not cut and paste but most of all it was just a statement. If I would have known how much verbal it would have got I would have never posted it. Sorry to all involved now hopefully we can move on now
There is scrubbing in tyres..which as Andy says, probably only takes 10 or so miles, but there is also the need to make sure the beading on the tyre is settled.
I believe the manufacturers suggest that the first 20 miles or so are taken easy (because of slippy surface on tyre) and then the next 30 or so miles you can start to get faster, and the remaining 50 miles (100 in total) are sent getting more lean etc. After this, check pressures and then you can go for it.
Its all to do with making sure the seal between the bead and the rim is tight and has moved around into its final position..if that makes sense?..so you don't get the tyre suddenly slipping across and releasing air in a big "leak".
Sorry , more bollox , every single club racer , national racer , right up to Valentino gets new tyres put on , does two laps and then Small Tree , or Bonsai as Max (Billy-Ray) Power would say ...............
On the road , no difference , the "guidelines" for scrubbing in tyres by manufacturers are just to cover their erses if you bin it
You can call me fat, slag off my riding and imply my bike is limp wristed.......BUT I DON'T DRINK STOUT....you Italian loving *&^%$"£*^£$*^%£$
P.S. thanks for the info, certainly amused me this morning :I can't believe it's not butter! :I can't believe it's not butter! :I can't believe it's not butter!
Now perhaps I should start a thread about how red bikes go faster cos of the smaller paint molecules :I can't believe it's not butter! :I can't believe it's not butter! :I can't believe it's not butter!
What I personally do is put the bike on the stand and have an assistant run the bike in top gear at 12000 RPM while I hold a small tree to the back wheel (remembering to do the sidewalls) then go for a blast round Knockhill (58 seconds) then have a pie.
....right you...outside now.