bike end sliping?

adam1985 · Borekit Bruiser Joined: 05 Apr 2009 Karma :

Was out riding my gsxr today and near enough everytime i put the back brake on the tyre skidded.

Silly question but would this just be down to no grip from the tyre?

tutton · World Chat Champion Joined: 04 Jan 2008 Karma :

Could be a number of things really,
start with simple things like obviously tyre condition, tyre pressure, suspension functioning properly under compression and work from there?
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G · The Voice of Reason Joined: 02 Feb 2002 Karma :

It's probably because you were using the rear brake Confused

.
Why were you using the rear brake if you didn't want some slidey action?

Did you have the clutch pulled in at the same time?

adam1985 · Borekit Bruiser Joined: 05 Apr 2009 Karma :

yeah maybe tyre condition me thinks, these tyres have done a track day a while back and obviously i have been out alot since. They are pirelli supercorsas.

Maybe time for the 2ct`s

Flip · Super Spammer Joined: 28 Feb 2004 Karma :

tutton · World Chat Champion Joined: 04 Jan 2008 Karma :

Just thought how warm were the tyres too?
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

Flip · Super Spammer Joined: 28 Feb 2004 Karma :

Acemastr · World Chat Champion Joined: 01 Oct 2008 Karma :

always thought the only way of locking the rear is to have the clutch in? surely it'd lock the tyre, stopping the drivetrain completely and stop the engine?

I know i can't lock my rear without the clutch being in.
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adam1985 · Borekit Bruiser Joined: 05 Apr 2009 Karma :

lol, i cant think weather i had the clutch in or not!!! Will give em another go at the weekend

c_dug · Super Spammer Joined: 04 Sep 2007 Karma :

I could be wrong but would it not just cause the clutch to slip rather than stop the engine?

c_dug
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Nixon · Brolly Dolly Joined: 23 Jun 2007 Karma :

Have you checked the tension and condition of your chain? if its too loose or mis aligned, it can cause the problems your suggesting. Thumbs Up

iooi · Super Spammer Joined: 14 Jan 2007 Karma :

Chriss · World Chat Champion Joined: 07 May 2005 Karma :

More often than not though, you hit the back brake, which makes the rear wheel go slower than the bike, thus giving the feeling the rear is locked, when it's not, it's just travelling slower than the bike is.
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D O G · World Chat Champion Joined: 18 Dec 2006 Karma :

You can break fairly hard with the rear brake and not lock the wheel. I know this because I use the rear brake a lot - 90% of the time in town I just use the rear.

Plus the fact the current bike's front brake is very poor (although getting better), and so I've been using the rear to slow from 70mph.

Personally I think you are interpreting the information from your bike incorrectly, I doubt it is locking, unless you really are stamping on that brake. If you ARE stamping on the brake then stop, because it is a stupid thing to do.