Rear disc rubbing? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 8 Old 06-21-2018, 08:57 PM Thread Starter
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Rear disc rubbing?

I have gotten 4 different responses to this question.
Vstrom 2016 has 5200km on it.

https://youtu.be/vVlUUSFspI4

My question is if this is normal? Should I take it apart? How can I fix this?

Thanks
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post #2 of 8 Old 06-21-2018, 09:39 PM
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I run a 2009 Vee and it does it as well. Not a problem as long as your brake pads are in good shape and there is no lateral shake when you apply the rear brake.

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post #3 of 8 Old 06-21-2018, 10:07 PM
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My 2010 650 does the same - as do most motorcycles. It is the disc pads resting lightly against the disc. Remember that the pads are forced against the disc but there is nothing to retract them. It is normal.
If you are at all concerned go for a fast ride using the rear brake as little as possible. When you stop touch the rear disc. You only have a problem if it is burning hot.
Now tell us the other three answers.
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Last edited by Brockie; 06-21-2018 at 10:12 PM.
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post #4 of 8 Old 06-21-2018, 10:41 PM
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Has the rear wheel been off the bike? If so check that the brake caliper bracket slot is not above or below the notch on the swing arm.
I just bought a 2015 1000 cheap because he thought something was wrong with the traction control, abs and the rear disk was rubbing. Got it home, 15 min later everything was fixed, he just didn't know what he was doing.
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post #5 of 8 Old 06-22-2018, 10:55 AM Thread Starter
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Quote:
Originally Posted by Jim L View Post
Has the rear wheel been off the bike? If so check that the brake caliper bracket slot is not above or below the notch on the swing arm.
I just bought a 2015 1000 cheap because he thought something was wrong with the traction control, abs and the rear disk was rubbing. Got it home, 15 min later everything was fixed, he just didn't know what he was doing.
I am not sure. I got it from a relative who passed.
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post #6 of 8 Old 06-22-2018, 11:55 AM
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You want to try something quick?
Use a long screwdriver to pry the disk pads away from the disk gently. It don't have to be that much movement, about a thou or two. Too much and the brake fluid will overflow, so be aware of this fact!
In a nutshell, in the standard rear caliper is a piston on one side only, that under pressure from the brake peddle activates the brake pad directly under the piston. The complete caliper slides over to one side so that the other pad helps to clamp the disk in between. Release the brake lever and the piston releases the pressure (about a thou). You with the aid of your screwdriver are now attempting to relieve any pressure on the disk. Listen for any sound similar to your video clip.
REMEMBER to activate the rear brake peddle BEFORE riding or you may be in for a nasty surprise. A delayed braking reaction / response.
You may ending up having to service / grease the caliper pins (very lightly) that allows the caliper to slide(too much attracts dirt).

Last edited by Gert; 06-22-2018 at 11:59 AM.
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post #7 of 8 Old 06-22-2018, 12:26 PM
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1. Slight rubbing is normal. Rear wheel typically spins less than front when you push it like that, because it's also dealing with chain/sprockets.
2. If you want to minimize brake drag, clean the caliper/pistons. It's not hard to do at all (youtube it) and there will be a lot less drag when you're done. It won't last very long though.. brake dust and regular dust/dirt accumulates pretty quickly.
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post #8 of 8 Old 06-22-2018, 01:18 PM Thread Starter
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Quote:
Originally Posted by Gert View Post
You want to try something quick?
Use a long screwdriver to pry the disk pads away from the disk gently. It don't have to be that much movement, about a thou or two. Too much and the brake fluid will overflow, so be aware of this fact!
In a nutshell, in the standard rear caliper is a piston on one side only, that under pressure from the brake peddle activates the brake pad directly under the piston. The complete caliper slides over to one side so that the other pad helps to clamp the disk in between. Release the brake lever and the piston releases the pressure (about a thou). You with the aid of your screwdriver are now attempting to relieve any pressure on the disk. Listen for any sound similar to your video clip.
REMEMBER to activate the rear brake peddle BEFORE riding or you may be in for a nasty surprise. A delayed braking reaction / response.
You may ending up having to service / grease the caliper pins (very lightly) that allows the caliper to slide(too much attracts dirt).
Quote:
Originally Posted by erci View Post
1. Slight rubbing is normal. Rear wheel typically spins less than front when you push it like that, because it's also dealing with chain/sprockets.
2. If you want to minimize brake drag, clean the caliper/pistons. It's not hard to do at all (youtube it) and there will be a lot less drag when you're done. It won't last very long though.. brake dust and regular dust/dirt accumulates pretty quickly.
Thanks guys I'll give it a try.
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