Help...Too much brake drag after reinstalling front tire

[The ModFather]

When I spin the front tire with the front up on fork stands I only get about 1.5 rotations. I can hear the brake drag as a small hiss as it spins. Not sure if thats normal. If I remove the right side caliper I get about 3+ spins but when I put it back on the brake drag comes back. Any ideas? Not sure if I should be riding it while its like this.

[Speeddog]

Year and model of Monster would help.

[The ModFather]

2005 620

[zooom]

back up a step or few...what did you have the fron wheel off for in the 1st place?

[scooterd145]

He did a tire change. Duck Off, put that thing back together, put it on the groud pull the brake lever a few times to pump the brakes up and ride it. Come back in and put it on the stand and see what it does. I bet it just needs to work a bit. The brakes are hydrolic, with nothing to push the pads back in but friction.

Question, did you do the rotate the wheel test before you took it apart? You could be comparing these results to a not know result...

[Slide Panda]

Have you got everything in the wheel lined up right? Did you take it off the stand and, with the pinch bolts loose, pump the forks a few times (make sure you're not holding the brake lever)?

But to me, this doesn't sound off. Once the bikes been used - the pads lightly skim the rotor at all times - there's always a tiny bit of drag. I don't get any 3+ rotations of my front wheel from a hand spin with the calipers mounted and the system pumped to the point where it would stop the bike.

[zooom]

I asked what I did to make sure nothing else was messed with before saying what you guys pretty much did....

[The ModFather]

Rode it like that to work. Havent been back home to check the brake drag on the stand yet on the front tire but the rear brake is my real problem. It feels almost gone now very little stopping power and I have to push all the way down. When I got to work I looked at the rear rotor and its completely scraped up. I did have a hell of a time sliding the rear rotor into the rear brake pads when remounting the tire. I wonder if I messed up the pads or if part of the shoe is rubbing against the rotor. Looks like that rotor would need to be refinished or replaced. Not sure what thats going to cost. Not good.  Any advice here?

[take risks]

pictures.

[manwithgun]

When I spin the front tire with the front up on fork stands I only get about 1.5 rotations. I can hear the brake drag as a small hiss as it spins. Not sure if that's normal.

Not quite sure what brakes you're equipped with but I'll go out on a limb and guess 2-pot Brembos?  It's been my experience that excessive drag is inherent to the 2-pot design where the pistons apply pressure to the outer pad which then relies on the caliper to slide, center, and then transfer pressure to the inner pad.  When you release the lever and the outer pistons retract slightly,  the inner pad has merely had the pressure relieved and the inefficiency of the slider causes the drag.  your experience may vary.

Also,  I like to retract the pad/piston slightly with a large flat blade screwdriver before installing the caliper to insure centering.  Just make sure that you pump yer brakes, seat the pads, and have good lever pressure BEFORE you blast down the road...

[The ModFather]

Well I figured out what cause the rear rotor to get scraped up like that. Pics provided. It looks like the caliper mount was actually rubbing against the rotor. Specifically if you look at the pics the it was the circle to the right of the word Brembo that was scraping my rotor.


IMG_5082 by ricknieto, on Flickr


I also have a close up of it here.

IMG_5086 by ricknieto, on Flickr

Not sure why this would happen.  Not sure if maybe my rear wheel alignment was off and it was tilted to the right or if the pad was pushed back or what. Any thoughts on why this would happen? Heres a view from behind. You can see the pads and the silver is the piece that was scraping. 


IMG_5089 by ricknieto, on Flickr


Finally here is my sorry ass rotor now. 


IMG_5080 by ricknieto, on Flickr

I've ordered new rotor and pads but I'd like to be sure this doesnt happen again. Any insight as to why this happened and how it could be prevented would be greatly appreciated.

Thanks!

[Speeddog]

You've run the rear pads down to the metal, that's why the rotor is scraped up.

[Slide Panda]

Dude - have you ever checked your pads before? You have managed to wear them past the min, past zero friction material down to the point that the rotor has worn into the pad backing plate.

You need a new set of pads and a new rear rotor.

[The ModFather]

Yeah I just realized this as I looked for the wear indication grooves in the pads that are obviously gone by now.  I had my 6000 mile maintenance done at the Duc shop last year and they said my pads were still good then but obviously I wore them down in the past 2000 miles. (I'm at 8K). How often should you check your pads? I've ordered new pads for the front too and plan on putting a new rear rotor and all new pads on.

[ducpainter]

Yeah I just realized this as I looked for the wear indication grooves in the pads that are obviously gone by now.  I had my 6000 mile maintenance done at the Duc shop last year and they said my pads were still good then but obviously I wore them down in the past 2000 miles. (I'm at 8K). How often should you check your pads? I've ordered new pads for the front too and plan on putting a new rear rotor and all new pads on.

I guess brake wear is dependent on riding style and brake usage, but I have 30 isk K on my bike and I think I'm on my first replacement set and they're fine.

Have you made any changes to the rearsets, or adjusted anything?