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Wave rotors for 2012 Griso

A

AH Fan

Just got it firing!
GT Contributor
Joined
Mar 20, 2012
Messages
12
Location
South Delta
Just for kicks.......... has anyone sourced a wave rotor set for front and rear of the 2012 Griso.
My glass is empty on this quest at present.......... sound off... ANYONE. B)
Thanks in advance.
 
Do a search on Braking rotors, they are the OEM supplier. Click the Store link above for far superior Brembo rotors (Superlights or T-Drive).
 
Did that.......... appears there is nothing that will match,I think it has to do with off set ect.
Let me know if there is someone in particuliar I should be talking too.

Regards;
 
I think wave rotors are a style statement alone. They suck balls. If you really want them I'm more than happy to swap the rotors off my early 8VG which are in pretty much perfect condition for your 'Conventional' rotors. The sort of riding I do I use the brakes very little but when I do I want them to be the best they can be and couldn't give a shit what they look like. In my book the 'Conventionals' have it all over the petals any time.

Pete
 
I'm thinking (dangerous) that wave rotors were intended to provide more surface area to rid the rotors of heat from hard braking. However, I don't know this to be fact ..... only conjecture on my part.

Bob
 
As I recall, when wave rotors first came out (for dirt bikes) there were two main "advantages". First was they were better at cleaning themselves of mud. Not very useful (usually) on a street bike. The second was they were supposed to even out pad wear across the face of the pad that supposedly resulted from the difference in speed between the outer part of the disc and the inner swept part of the disc. There is a difference in speed, but I have never noticed the outer area of my pads wearing more the the inner area of the pad. It is common to see the leading edge of the pad wearing more then the trailing edge, but I have never seen a difference inner to outer.
Wave rotors do not have more surface area, they have less. The little bit of extra surface area gained from the increase in the outer edge is more then offset by the amount of disc face lost to create that increase in edge area.
Wave rotors have less surface area and less mass. The less mass things is a good thing in most respects, except in regards to their ability to resist fade under heavy use.
The less surface area part is mostly a negative in that they tend to offer less power and feel for a given disc size.
A good way to look at it is, do real race bikes use them? The answer to that tends to be NO.
 
GuzziMoto you raise a good point regarding the speed of the rotor,of course the outer diameter will be travelling faster than the inner.My 06 1100 G is sitting 2 foot away from me looking more forlorn than I feel,minus his back wheel. The rear disc has exceeded its minimum thickness and the pads have worn to nearly bare metal.The outer diameter of the disc is 4.35mm and the inner is 4.5. I am waiting on a replacement from overseas via Thunderbikes,with tickets to the Phillip Island GP in hand.The front discs are wearing more evenly but will have to be replaced next year.I will replace them with OEM though.
 
You have worn your REAR disc out?

I am not one of those folks who claim never to use their rear brakes (on a non-integrated-brake system) Guzzi. I do use mine when trail-braking, especially when ascending on a sharp switchback, in tight parking-lot turns, and in some ... erm ... "stabilizing" events. I do go through rear pads on the Norge more frequently, but presume that is from more weight of it, and the manner I usually travel on it, i.e., near GVWR.

Still, cannot imagine using the rear, at least on the Griso, so much that I'd take the disc to "no go" territory. Now you are going to have me measure the darn thing now and then! :woohoo:

Obviously, YMMV, but wondering if your pad choice also contributed?

Bill
 
Bill,when I told my mate about my disc,he promptly carried on about "you use your back brake too much "and other crap, so I measured his Stone Hydra rear disc- it was worn more than mine.I make no claim at being a Gun rider,I can keep in front of my mates Stone.I ve found with the Griso that there is not a great deal of engine brake at lower revs. Maybe if my bike didnt go like it does I wouldnt need to slow down so much..This was the 2nd set of pads,both front and rear,and came from one of the most knowledgable and reliable sources in Australia,they are "sintered",I dont know how that rates them in the scheme of hardness.However Mario said they are the recommended ones.He also said that quite a few people have mentioned not getting the life they expected out of their discs. My bikes only got 92000Kms.
What does GVWR and YMMV stand for? I could attempt my own translation but I dont know why Green Vaginas Wont Rust or Your Maidens May Vaporise?
 
Lordy. I wasn't being critical, but surprised. And worried that I'd better go check mine. Maybe,as you said, you just ride too fast! :woohoo:

As for acronyms, I actually prefer your "translations," but, by GVWR, I meant gross vehicle weight rating, i.e., what the manufacturer('s lawyers) say is the safe load limit, and, by YMMV, "your mileage may vary," intended to mean we are al different, etc.

Best,

Bill

Edited to change the "R" in GVWR" from "restriction" to "rating." After posting, thought I'd better look it it up. Perils of being OC. :whistle:
 
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