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Plastic Front Disc Guards: Do they work?

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I have a bit of interest in these guards from a functional perspective but they cost about half of what a new disc would cost me. I'm just trying to figure out what these things really do and whether the investment is worth it. I notice a lot of off-road guys run them so hopefully real world experiences will be plentiful...

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They help keep crap off the rotor in offroad and mx they help to keep your rotor from getting caught or damaged from other riders. I run the acerbis one and love it

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3 minutes ago, cjjeepercreeper said:

I don't know about front plastic ones, but I've destroyed several rear ones in gnarly stuff.

I agree.  The plastic ones better be cheap.  They keep the rotor a little cleaner but larger rocks will wipe it out.

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The Acerbis one is about $50 now, the UFO version $60-70, and the ktm/husky power parts one msrp is $79. A new OEM rotor retails for about $140 but can be found for around $105.

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I live in the desert so mud is not an issue haha but I guess if your riding in mud you don't really need a disc guard since mud is pretty soft anyway.

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Don't know how useful they are, I don't use any and think they're ugly. I may regret it one day, might not. I ride in axle deep rutted trails all the time. None of my rotors are oversized yet either.

Edited by RawbW
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I notice very few riders in our Hare Scramble events run them. I definitely DO NOT run one. I also have a 280MM rotor.. I've never damaged a rotor from contact with other objects. Not saying it won't happen, just that it has not happened yet.

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I ride in ruff rocky trails in Arizona so it's a must for me and the Acerbis holds up great and has saved my rotor from rock damage multiple times. I also like the fact that you can buy a different mounting plate and put it on any other bike.

20170521_161151.jpg

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That's sexy, I was going to order one a few months back at $50 or so but then had to buy an adapter at another $35, I was out then!

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10 minutes ago, Smoking 2's said:

That's sexy, I was going to order one a few months back at $50 or so but then had to buy an adapter at another $35, I was out then!

$44 for the complete kit at RM ATV/MC.

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I'm not sure the company but it sounded similar to that that but in fine print kinda thing it said this # needed. 

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+1 on the acerbis x,love mine in the rocky stuff,nothing negative to say.i also bought mine at rmatv under 50.

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19 minutes ago, mudmixer said:

+1 on the acerbis x,love mine in the rocky stuff,nothing negative to say.i also bought mine at rmatv under 50.

What are they made of, inch thick plastic?  I have destroyed stock plastic disc guards a bunch of time on rocks.

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I know what your saying, a piece of 25cent piece of plastic but it helps as a deflection more than anything. Our forks would be screwed with out the gaurds

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