I have offer to sell my OEM discs for about 40 GBP and bougth something like this

http://cgi.ebay.com/ebaymotors/Honda-VF ... 065wt_3046

Just thinking is this worth to changes ? My OEM disc about 3,93mm, not new of course, but quite good conditions.

Any advice ?

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i have seen this kind of rotors when i had my last vacation, and in my opinion the quality of the disk brakes are not that good. the quality of the metal and workmanship, is almost the same (or the same) disk brakes they used for scooters/mopeds here in the PI, where most of the sold aftermarket parts came from China.

i asked for some opinions/advices to my bike buddies, and they suggested me to buy a trusted brand. Brakes are our no.1
protection against accidents, and they were right.

so, i ordered these GALFER rotors in the US.
http://www.bikebandit.com/product/10496?m=2066&t=1" onclick="window.open(this.href);return false;

they might be expensive, but im sure they're 100% SAFE to use.

If that thing was manufactured from China as well, i will not buy it. they dont have brand name either, the same thing i saw in PI which are sold very cheap.

its not that i hate China, Chinese or all China made items, its only because SOME products come from China are not that good. Just like their milk.....




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Even good third party parts can be garbage. Don't buy EBC discs for example, they rust very quickly and don't work in the rain or so well from cold.

Stick to originals unless they're broken. And if they're broken, give thought to replacing with originals, as the materials are simply top quality.

For road riding, original discs and nissin pads (you can't beat them for all weather, high-miles performance), stainless hoses, recent well-bled fluid and serviced calipers. For track riding, drop Mr France a line, if anyone knows...

Even good third party parts can be garbage. Don't buy EBC discs for example, they rust very quickly and don't work in the rain or so well from cold.

Disgree totally.

I think what you should be saying is:

Brake discs aren't just brake discs. When buying aftermarket you need to consider your application as much as you consider your supplier.

What might rust on the road and not work great when cold might be perfect for track work where you are braking heavily and often. You won't find too many race bikes that brake at 100% into the first turn.

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i think there is also a reason why disk brakes got rusty sometimes, its because that disk brakes are commonly made of CAST IRON and a certain amount of surface rust is normal.



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just ask anyone who owns a NC30 about rusting brakes.
when i had mine it would rust over night, if i didnt ride the bike for a few days the rust would lock on to the pads
and you had to rock the bike to get them to break free. once you set off your pads scrubbed the rust off with in 1/2 mile.
This apparently is a normal thing for NC30 disks as they are made from Iron.

OK maybe my statement was biased. But I am anti EBC as I have two discs in my shed, one horribly warped. I have seen two pairs of pads separate front from back, that could have been very dangerous.

EBC discs rust the worst of anything except cast iron that I've seen (my fireblade came with them and my housemate put some on his GSXR), they use a high carbon steel for heat resistance so the brakes don't fade on track. But it's not ideal for road use, which is where most of their discs will end up, as they rust, take longer to warm up, and are bad (by which I mean worse than original, which isn't the point of performance parts) in the rain.

LP, are you *quite* sure original NC30 discs are made of iron?

Garyboy, what's up with the dots top and bottom of your posts? Attention seeking? If you have a shorter comment to make, it takes less space, let it do so.

[/grump]

NC30 discs are not made of iron - theya re the same as the nc23 and 29 discs

Your pads must have been dodgy LP - I remember when you had the 30 and it locked solid overnight..lol

What a ballache (ovaryache)

Warped discs are bad news, I've had a few over the years but usually due to some small off on the road. Haven't had any warp just from heat or use. (My 91 ZXR750 had discs made of licorice, the OE discs bent just by talking to them harshly, but by geeze you could stop that bugger hard).

Disc design is always a compromise, a disc that works well in the wet will generally have so many cuts/holes etc it will over heat and lose efficacy quite quickly in the dry.

A lot of aftermarket makers sell into the performance market, the problem is a lot of riders think buying a performance item will make their bike better. Fact is, most will make their bikes worse because they simply aren't operating their bike within a suitable range, and after market discs are a great example of that.

I'm curious about these chinese discs, has anyone actually used them anywhere? (Most things are made in china these days in a generic factory then branded by the supplier. It wouldn't surprise me to find out Galfer discs come out of china).

Warped discs are bad news, I've had a few over the years but usually due to some small off on the road. Haven't had any warp just from heat or use. (My 91 ZXR750 had discs made of licorice, the OE discs bent just by talking to them harshly, but by geeze you could stop that bugger hard).

Disc design is always a compromise, a disc that works well in the wet will generally have so many cuts/holes etc it will over heat and lose efficacy quite quickly in the dry.

A lot of aftermarket makers sell into the performance market, the problem is a lot of riders think buying a performance item will make their bike better. Fact is, most will make their bikes worse because they simply aren't operating their bike within a suitable range, and after market discs are a great example of that.

I'm curious about these chinese discs, has anyone actually used them anywhere? (Most things are made in china these days in a generic factory then branded by the supplier. It wouldn't surprise me to find out Galfer discs come out of china).