Aftermarket wave rotors

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Re: Aftermarket wave rotors

Post by ionbeam »

Mossyrocks wrote: Mon Jun 28, 2021 6:57 pm What are the thickness limits?
Front disc: Limit 4.0 mm (0.16 in)

Rear disc: Limit 4.5 mm (0.18 in)
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Re: Aftermarket wave rotors

Post by John d »

ionbeam wrote: Mon Jun 28, 2021 6:52 pm When the pistons pop out of the caliper you will know it's time to replace the rotors :mrgreen:

Once you decide what kind of rotors to buy, it will be time to replace them. What brake pads have you been running that have thinned your rotors at such a young age?
The front pads were replaced once with OEM. The rear has had one OEM replacement and one EBC.
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Re: Aftermarket wave rotors

Post by dcarver »

Rear Brake disc thickness limit 4.5 mm (0.18 in)
<front> Brake disc thickness limit 4.0 mm (0.16 in)

2006 FJR...
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Re: Aftermarket wave rotors

Post by FJRoss »

ionbeam wrote: Mon Jun 28, 2021 7:03 pm
Mossyrocks wrote: Mon Jun 28, 2021 6:57 pm What are the thickness limits?
Front disc: Limit 4.0 mm (0.16 in)

Rear disc: Limit 4.5 mm (0.18 in)
Just looked them up in the FSM. The total wear allowance is just 0.5mm (Original thickness spec is 4.5mm F and 5.0mm R)
Any likelihood of the rotor failing if you are even as low as 3mm F and 3.5mm R? Or is there some other reason for that spec?

I checked mine with a digital caliper but you really need a micrometer (or caliper with shims) to get past the edge ridge.
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Re: Aftermarket wave rotors

Post by John d »

dcarver wrote: Mon Jun 28, 2021 7:43 pm Rear Brake disc thickness limit 4.5 mm (0.18 in)
<front> Brake disc thickness limit 4.0 mm (0.16 in)

2006 FJR...
Might I ask what your rotors are at.
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Re: Aftermarket wave rotors

Post by wheatonFJR »

Mossyrocks wrote: Mon Jun 28, 2021 6:57 pm What are the thickness limits?
Isn't it in your FJR Service Manual?
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Re: Aftermarket wave rotors

Post by ionbeam »

Doesn't anyone read the previous posts before replying? ;)
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Re: Aftermarket wave rotors

Post by raYzerman »

FYI, the Chinese wave rotors are a full 5 mm thick for FJR front rotors, stamped minimum 4mm. I have a rear on another bike, it was also 5mm.
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Re: Aftermarket wave rotors

Post by dcarver »

Found fronts, <barely> used, eBay $49.60

No idea Galfers and EBC are so pricey

Now to find a used rear...

Thanks for replies guys :)

edit
found rear too
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Re: Aftermarket wave rotors

Post by CollingsBob »

I’m going to restore mine to original thickness by troweling some JB weld on to them
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Re: Aftermarket wave rotors

Post by Canadian FJR »

I have cheepo wave rotors on both my spare rims.
Ran them on the Alaska trip

Currently running the front now.


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Re: Aftermarket wave rotors

Post by wetwolf »

Image

I'll let you know how they work out
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Re: Aftermarket wave rotors

Post by wetwolf »

Well, my suspicions were correct. The 1st front brake tap of the day always made 2 distinct clunks. I could tell one was from the left and one from the right. Backing up, same thing. I figured the stock rotors were wearing on the rivets and clunking back and forth. Turns out I was right. you could look at the stock rotors and see that the outer was about 2mm ahead (or behind) of the inner. 1st ride with the wave rotors. NO MORE Clunking, and not only that, but all of the noise coming from the front end that I thought was just old plastic getting loose is gone.

Fresh rubber, fresh rotors, fresh pads, feels like a new bike. 82,500 miles on the stock rotors, they were down to 3.5 - 3.8, but the rivets were the clunking sound and all the noise from the front end. I'll keep you posted on how they wear. My last set of front pads were installed 14K ago, I wore them out pretty quick.
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