October 6th, 2016, 09:55 AM | #1 |
ninjette.org member
Name: Ruben
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Front disc brake pads slightly scratching rotor when moving bike around. Is that ok?
As you guys know I'm an old guy and I'm used to drum brake pads being adjusted to barely scrap the drum when they are adjusted right.
My front disc brake pads on my bike are slightly rubbing when I push the bike around to move it or to put it in the shed. Is that right? It doesn't bind and I don't feel any drag when I'm pushing it around. After a longer ride, I checked and the front disc brake isn't hot or smell hot in any way. Is there an adjustment for this? I didn't think that disc brakes were supposed to rub at all. |
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October 6th, 2016, 10:36 AM | #2 |
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normal
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October 6th, 2016, 10:38 AM | #3 |
ninjette.org member
Name: Ruben
Location: Arizona
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October 6th, 2016, 10:45 AM | #4 |
ninjette.org sage
Name: Aaron
Location: Winder, GA
Join Date: Jun 2012 Motorcycle(s): 2013 Ninja 300 Posts: 718
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Just for future reference, disc brakes lack any sort of adjuster like you would find on a drum brake. Since there's no return mechanism for the pad, it will always be riding just on top of the brake rotor, making them self-adjusting. That's the light scratching you're hearing and just one more reason I like disc brakes SO MUCH more than drums
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October 6th, 2016, 10:50 AM | #5 | |
ninjette.org member
Name: Ruben
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Quote:
Thanks. |
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October 6th, 2016, 11:33 AM | #6 |
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It varies a little. If it's dragging so much that you can feel resistance when you push the bike around the garage, it may be dragging too much. The caliper piston seals are springy, and tend to retract the pistons slightly when you let off the brake. If the rear is doing that a little better than the front, that may account for the difference you're feeling.
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October 6th, 2016, 11:38 AM | #7 | |
ninjette.org member
Name: Ruben
Location: Arizona
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Quote:
So, I guess it is ok then. Thanks |
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October 6th, 2016, 11:56 AM | #8 |
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next time you change the pads, be sure to lube the pistons.
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October 6th, 2016, 11:57 AM | #9 |
ninjette.org member
Name: Ruben
Location: Arizona
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October 6th, 2016, 12:02 PM | #10 |
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Name: Al
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I think @Ghostt can answer your questions more fully but just any old lube will do ya.
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October 6th, 2016, 12:03 PM | #11 | |
ninjette.org member
Name: Ruben
Location: Arizona
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Quote:
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October 6th, 2016, 12:08 PM | #12 |
ninjette.org certified postwhore
Name: Al
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October 6th, 2016, 12:09 PM | #13 | |
ninjette.org member
Name: Ruben
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Quote:
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October 6th, 2016, 12:35 PM | #14 | |||
in your machine
Name: Scott
Location: Summer Shade, Ky.
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Someone say lube?
But seriously, here's my write-up on caliper maintenance. I recommend that every time you change your pads, you service the calipers, he's my write-up to help you out. It should fix your initial problem, and keep your calipers in top working order. Quote:
I also recommend flush and fill with new brake fluid, also I'd go with 5.1DOT. No matter what kind of brake fluid you choose, always periodically flush and fill with new fluid. This is the one I use https://m.motul.com/ca/en-us/product...-1-brake-fluid Also inspect the brake lines, replace is needed, http://faq.ninja250.org/wiki/Stainle..._lines_upgrade Quote:
On my 91 EX500 I have Spiegler, in orange to match that bike. Quote:
Buy quality pads,I personally recommend EBC brand either the HH, or the Extreme HH. EBC full floating rotor, replace the OEM rubber line with a stainless steel braided brake line, cheaper than replacing them with OEM. On my 500 I have Spiegler line http://www.spieglerusa.com/brakes/cy...line-kits.html On my Ninja 250 i went with Venhill http://www.venhillusa.com/products.html With all that, it will stop on a dime, and leave you nine cents in change. look here http://ebcbrakes.com/products/motorcycle/ And also read this, http://www.ex-500.com/wiki/index.php...otors_and_Pads That should answer any questions you might have.
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October 6th, 2016, 12:47 PM | #15 |
ninjette.org member
Name: Ruben
Location: Arizona
Join Date: Sep 2016 Motorcycle(s): 2007 Ninja 250 and 1991 Yamaha Virago XV750 Posts: 228
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October 6th, 2016, 05:23 PM | #16 |
ninjette.org sage
Name: Aaron
Location: Winder, GA
Join Date: Jun 2012 Motorcycle(s): 2013 Ninja 300 Posts: 718
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Ah, yeah, I forgot about those square-cut seals...
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October 6th, 2016, 08:44 PM | #17 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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For slider grease I use this,
Permatex 85188 Ultra Disc Brake Caliper Lube, 0.5 oz. https://www.permatex.com/products/lu...aliper-lube-4/ Permatex® Ultra Disc Brake Caliper Lube Category: Specialty Lubricants - Brakes An environmentally-friendly, green, no melting, synthetic lubricant. It is formulated to lubricate under the most adverse brake conditions, assuring that critical caliper pins, sleeves, bushings and pistons remain lubricated throughout pad life. Motorcycle Suggested Applications: Guide pins, disc brake pad Permatex 85188 Ultra Disc Brake Caliper Lube, 0.5 oz. https://www.amazon.com/dp/B004WJPN2A..._8EX9xbFYH2VWN Remember, Just a dab will do ya' I can not stress the importance of brake maintenance, under hard/panic braking, the front brake does almost all the stopping, and the Ninjette only has a single disc/caliper. So the next time you do your pads, just remember that, and proper maintenance of the caliper only takes a few extra minutes, and it's easley done. When you consider the alternative, of causing yourself harm, aren't you worth the extra time? In the end it's your call.
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October 6th, 2016, 09:08 PM | #18 |
Guy Who Enjoys Riding
Name: Jim
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October 7th, 2016, 08:20 AM | #19 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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So true.
Caliper maintenance is one of the most overlooked items, along with valve adjustment. The difference is caliper maintenance is a whole easier to do.
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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October 7th, 2016, 08:39 AM | #20 |
ninjette.org certified postwhore
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One is more of a safety issue as opposed to a performance issue.
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October 7th, 2016, 10:18 AM | #21 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
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Agreed, but on the list of overlooked maintenance items I would put these two in the top 5.
With calipers being #1 because of that reason of major safety/major injury issue. Due to the Ninjette is an "entry level bike" and they change hands often, with little to none of any maintenance done. With SERENITY being a prime example of this, 27k when I got it, and the only thing done was a few oil changes, and set of tires. Most people buy these to learn on, and then sell them for bigger and better things, they aren't interested in maintenance, if any is done it's most likely the minimum amount. Regardless of why you purchased the Ninjette, you need to make it safe and reliable for yourself.
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October 7th, 2016, 02:14 PM | #22 |
ninjette.org member
Name: Ruben
Location: Arizona
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I agree with this. And I have to spend time before my long trip next year studying up and doing this on my bike. It is about time for new brake pads anyway.
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