Brake rotor friction

Brian Mullen vnvbandit at gmail.com
Mon Aug 13 04:30:24 PDT 2007


Good for you!  Where wer yo racing at?

now you HAVE THE BUG!!!!

Brian


On 8/12/07, Erik Weber <yoober at gmail.com> wrote:
>
> Hope you had a good one. I just got back from my first race ever. I
> raced it with my homemade belly pan which definitely drew some odd
> looks what with fiberglass hair sticking out of it. :) (I primered it
> at 3 a.m. the morning of the race; sanding never entered the
> equation.) Besides the smell of slowly burning resin though, it held
> up fine and never dragged even when my pegs were dragging. I did look
> down a couple times to see if it was on fire. :)
>
> There were 11 riders in my class and I finished 7th and then 5th. I
> got passed by one in my class I think (not counting the start) and I
> passed about four. Not too bad for my first race on no sleep. I did
> learn real quick why the start is so important. In the first race I
> came off the line like I was at a traffic light and people blew past
> me. In the second one, I wheelied coming off the line and realized I
> was in the meat of the torque curve on the next few shifts and
> actually got into turn 1 in good time. Now I see.
>
> Thanks to everyone on the list for helping me out this year.
>
> Erik
>
>
> On 8/9/07, Randy Grein <randygrein at comcast.net> wrote:
> > Hahaha!
> >
> > I'm off to a track day tomorrow - pray to the god of friction
> > inhibitors the engine does OK. I'll be happy if I can get down to my
> > supersport times with the additional power - it's all chassis and
> > suspension tuning tomorrow.
> >
> > Randy Grein, WMRRA #41
> >
> > On Aug 9, 2007, at 1:08 PM, Erik Weber wrote:
> >
> > > Yep.
> > >
> > > Well, I got the bike straightened after one crash, and it was perfect.
> > > Then I promptly went out and crashed it again. Can't afford it every
> > > time!
> > >
> > > Erik
> > >
> > >
> > > On 8/9/07, randygrein at comcast.net <randygrein at comcast.net> wrote:
> > >> Wow! So we were on the right track, just hadn't thought of bent
> > >> parts. (grin)
> > >>
> > >> You may want to get the part(s) straightened...
> > >>
> > >> Randy Grein, WMRRA #41
> > >>  -------------- Original message ----------------------
> > >> From: "Erik Weber" <yoober at gmail.com>
> > >>> Randy, I had my bike in the shop yesterday and someone much smarter
> > >>> than me figured out the problem.
> > >>>
> > >>> My front wheel was basically whacked out of alignment and was being
> > >>> pushed over to the side by either a slightly bent fork or maybe bent
> > >>> triple clamps. Also the wheel bearings were slightly pushed out
> > >>> making
> > >>> the problem worse.
> > >>>
> > >>> What was happening was that my caliper itself, not the pads, was
> > >>> rubbing on the rotor on one side! It could have developed into a
> > >>> dangerous situation, as the caliper studs that poke out and were
> > >>> scraping were coming perilously close to the grooves in the rotor.
> > >>>
> > >>> Getting the wheel closer to straight has evened out the caliper
> > >>> clearances. The pads still scrape a little but it's a world of
> > >>> difference now.
> > >>>
> > >>> Thanks,
> > >>> Erik
> > >>>
> > >>> On 6/24/07, Randy Grein <randygrein at comcast.net> wrote:
> > >>>> Eric,
> > >>>> I've had a lot of variance when changing wheels. What seems to help
> > >>>> is to put the bike back on the stands, loosen the caliper bolts and
> > >>>> tap the brake lever several times while spinning the wheel. Then
> > >>>> apply the brake lever and hold it while tightening the caliper
> > >>>> bolts.
> > >>>> This seems to get the calipers seated more exactly; may or may not
> > >>>> help with your noise problem.
> > >>>> Randy Grein, WMRRA #41
> > >>>>
> > >>>> On Jun 23, 2007, at 6:35 PM, Erik Weber wrote:
> > >>>>
> > >>>>> Well, that makes me feel slightly better. :) But it bothers me
> > >>>>> that
> > >>>>> all I did was take the wheels off and have new tires mounted
> > >>>>> and they
> > >>>>> got worse. I was wondering if something could stop them from
> > >>>>> releasing
> > >>>>> 100%.
> > >>>>>
> > >>>>> On 6/23/07, Ernest Montague <afm199 at earthlink.net> wrote:
> > >>>>>> dunno but they are scrapy ass loud pads for sure.
> > >>>>>>
> > >>>>>> On Jun 23, 2007, at 4:52 PM, Erik Weber wrote:
> > >>>>>>
> > >>>>>>> I have a 2001 SV650S. I have the RJLs on the front, and they are
> > >>>>>>> probably thicker than normal, so I never thought too much
> > >>>>>>> about the
> > >>>>>>> fact that they scrape a little on the rotors and there is some
> > >>>>>> sound
> > >>>>>>> there (with no brake lever pressure). Since the bike will
> > >>>>>>> still do
> > >>>>>>> around 130 I figured how much could it matter and it keeps the
> > >>>>>> rotors
> > >>>>>>> clean. :) Today I had the wheels off and now after I have put
> > >>>>>>> them
> > >>>>>>> back on, they are scraping a lot more, to the point where
> > >>>>>>> when I'm
> > >>>>>>> coasting someone is going to notice it. I did some laps and it
> > >>>>>> was OK
> > >>>>>>> but what is wrong?
> > >>>>>>>
> > >>>>>>> Thanks,
> > >>>>>>> Erik
> > >>>>>>>
> > >>>>>>
> > >>>>>>
> > >>>>>
> > >>>>
> > >>>>
> > >>>
> > >>
> > >>
> > >
> >
> >
>
>


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