BAD wet weather brake lag!

Joined
Aug 28, 2005
Messages
33
Just returned from a very wet ride with some other Nortons over the hills from Wellington and experienced some really bad "buttock clenching" moments in a huge rain storm. I've got the 13mm M/C sleeve mod, Lockheed racing caliper plus braided hose which gives me brilliant two-fingered stopping in the dry. I've noticed brake lag in the wet before, but last night, hitting the front brake hard around 60mph/100kmh caused 10 seconds of absolutley nothing before the pads started to bite, and some really scary moments. I've got the standard disc/rotor still, but have never experienced it this bad before....am I looking at a new drilled disc to get rid of the problem? Different pads? Anyone had it this bad on a standard disc? Cheers - Nick
 
Joined
Apr 7, 2004
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1,691
FERODO pads are available in the new Platinum series for the Commando's seem to be the latest greatest. Vintage brake in CALF. has them.
 
Joined
Nov 18, 2005
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922
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Have you still got the chrome plate on it. They can be pretty bad in the wet.
I use a standard disc with the chrome skimmed off and it's gripped by a Brembo caliper and MC. It's very good in the wet, no lag.
I'd try skimming the chrome off as the first ( and cheapest) option.
 
Joined
Jan 10, 2005
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1,043
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That's not good. As PJ says have you still got any chrome on the disk? If not then the pads are likely glazed and need replacing. I use EBC's which are highly recommended. FA27 also good. You can drill the disc like I did with 80 x 7mm holes one boring! bank holiday and with the 13mm RGM conversion mine works well in the wet. Like NZ we get some rain here too!
I don't think it makes much difference to braking but with 20 x 13mm holes in the centre as well it took 3/4lb off the disc and makes a nice zizzing noise in the dry.
 
Joined
Aug 28, 2005
Messages
33
Thanks for all the input - good point on the chrome, this is probably the main culprit as the disk performs in the dry so I don't think I've got too much pad glazing. Ho hum - now do I skim the original or raid the piggy bank for an RGM disk........!
Cheers - Nick
 
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