keith565 Posted March 6, 2013 Share Posted March 6, 2013 looking for your thoughts.was riding home yesterday in freezing fog (thought it was going to be mild?), was only a few miles from home after doing all sorts of manoeuvres from straight runs up the A1 to low speed filtering. anyway, i was coming off the A19 onto the A690 slip road at approx 70mph when i gently applied my front brake and got this almighty judder through the handle bars and brake lever. I let go of the brake lever and it went as fast as it came on, pulled brake lever again and it did it again but wasn't as bad and as i slowed right down it became un-noticeable. for the next few miles i tried to bring it back on but couldn't as road speeds were max 30mph.I've got the bike up on the centre stand, can't feel any play on the forks or the front wheel, all feel solid. new pads fitted in jan,brakes been super since. only MOT'd in early feb.any thoughts guys.got to say i got a bit of a shock. Quote Link to comment Share on other sites More sharing options...
Bonniebird Posted March 6, 2013 Share Posted March 6, 2013 That's what my car does if there's a slight skid and the ABS kicks in. Quote Link to comment Share on other sites More sharing options...
keith565 Posted March 6, 2013 Author Share Posted March 6, 2013 my ABS only kicks in under hard braking, this judder was very evident when just gently pulling the brake lever. Quote Link to comment Share on other sites More sharing options...
Stu Posted March 6, 2013 Share Posted March 6, 2013 could be something to do with the freezing fog and the disks been cold! they could have been misshaped by the cold and once you got some heat in them you couldn't feel it again Quote Link to comment Share on other sites More sharing options...
megawatt Posted March 6, 2013 Share Posted March 6, 2013 Could have been a reaction with the damp air and the brake pads? Quote Link to comment Share on other sites More sharing options...
Chrissb6 Posted March 6, 2013 Share Posted March 6, 2013 Could have been a reaction with the damp air and the brake pads? Try riding now and again with your hand just touching the brake lever, keeping a little bit of heat in the disc. Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted March 6, 2013 Share Posted March 6, 2013 was going to say it could of been the abs kicking in due to weather conditions the road might of been slightly icy and allowing the wheel to slip causing the abs to cut in Quote Link to comment Share on other sites More sharing options...
keith565 Posted March 6, 2013 Author Share Posted March 6, 2013 thanks for the replies. I'll take it back out tomorrow and see if the problem is still there.to tired today Quote Link to comment Share on other sites More sharing options...
keith565 Posted March 8, 2013 Author Share Posted March 8, 2013 well, i thought i would have another check of the bike before riding it again and i found my front tyre pressure was ...........wait for it...............16psi . i know, didn't feel low, i actually thought it might have been to high. anyway, pumped it up to 36 where i normally have it and off i went. well,as you can imagine, there was no shake when i put the ankers on. so problem solved. i now need to keep a close eye on the tyre in case i have a slow puncture. can't see anything and they have only done 4000 and plenty of tread left on them. Quote Link to comment Share on other sites More sharing options...
Chrissb6 Posted March 8, 2013 Share Posted March 8, 2013 well, i thought i would have another check of the bike before riding it again and i found my front tyre pressure was ...........wait for it...............16psi . i know, didn't feel low, i actually thought it might have been to high. anyway, pumped it up to 36 where i normally have it and off i went. well,as you can imagine, there was no shake when i put the ankers on. so problem solved. i now need to keep a close eye on the tyre in case i have a slow puncture. can't see anything and they have only done 4000 and plenty of tread left on them.Nice one keith, glad you found the cause of the problem. Just go's to show if its not right don't turn a blind eye. This could of really bit you on your arse. Quote Link to comment Share on other sites More sharing options...
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