New choice of radial calipers. Anyone interested?

**bismarck** · 24th September 2010, 12:26

Originally Posted by imdying

Hey there. I see you're local to me?

I have access to a brake hose testing device... it doesn't do anything but put around 4800psi through whatever is connected to it... I'd be keen to put one of these on there, so we could see if it flexes, or leaks, or anything untoward.

I'd do it for free for you (would only take 5-10 minutes),and I'd be happy for you to keep the results to yourself (unless it exploded, in which case I'd prefer you shared that info!).

If you could get a sample that we could test, maybe it'll highlight any potential problems before you spend up large and import a box full. And maybe not, but the offer is there if it is of use to you

That sounds great. I've already ordered an sample caliper, it sould be here by next week. Would be interesting to see how it performs.
Thanks again

**Shaun** · 24th September 2010, 12:40

Originally Posted by bismarck

That sounds great. I've already ordered an sample caliper, it sould be here by next week. Would be interesting to see how it performs.
Thanks again

This will be extremelly interesting to see, especially as it is such a Major Safety issue, the look cool, but so does a piece of turd some times.

Good luck with the test, be very interesting to see what happens to them after a few heat cycles as well

PS, where are they manufacrured then, and what metal is used in them

**onearmedbandit** · 24th September 2010, 13:12

Originally Posted by onearmedbandit

Ok, all piss-taking aside. I'm not trying to knock you but I'd be interested in how these are considered an upgrade.

Originally Posted by cs363

+ 1. Considering any bike that these will fit will already have Brembo, Nissin or Tokico calipers which are proven, high quality brands - how does a Taiwanese aftermarket caliper constitute an upgrade?
If they do conventional calipers there may be more of a market if the price is right, given that there's a lot of old bikes in NZ, probably with calipers that have seen better days. Or perhaps people wanting to upgrade to six pot calipers from older 4 pots etc.
Not to mention that Vroom already import these calipers, albeit at a higher cost.

I think he missed our posts. But not on purpose of course.

**bismarck** · 24th September 2010, 13:16

Originally Posted by Shaun

This will be extremelly interesting to see, especially as it is such a Major Safety issue, the look cool, but so does a piece of turd some times.

Good luck with the test, be very interesting to see what happens to them after a few heat cycles as well

PS, where are they manufacrured then, and what metal is used in them

Thanks
They are made in Taiwan. Calipers are made of forged aluminum alloy, pistons are made of iron, aluminum alloy or titanium depending on models.

**imdying** · 24th September 2010, 13:19

Originally Posted by bismarck

That sounds great. I've already ordered an sample caliper, it sould be here by next week. Would be interesting to see how it performs.
Thanks again

Yeah just flick me a pm. It'll only tell us whether they leak under extreme pressures, but it might give you some free piece of mind

I expect they'd be fine, if anything the pads might be a bit soft (cheaper to make them like that) and could cut out quicker than expected, but you won't know that till a few sets have been around the block a little. Having said that, some people cut out pads quite quickly anyway, and there's a couple of brands of aftermarket motorcycle pads on the NZ market already that do this.

I don't know if you're doing discs yet, but maybe having a look at the Metal Gear Australia site might be worthwhile.

**White trash** · 24th September 2010, 15:21

Originally Posted by Shaun

the look cool, but so does a piece of turd some times.

Can't say as I've ever seen a cool looking piece of turd mate, but whatever floats ya boat

**Gubb** · 25th September 2010, 09:28

Originally Posted by bismarck

These are not chinese cheap calipers.

Originally Posted by bismarck

They are made in Taiwan.

You say Potato, I say that for all intents and purposes, Taiwan is China.

**Ghost_Bullet** · 25th September 2010, 10:23

Originally Posted by auntfanny

Who you calling Frando? Its Fanny

Fanny

Sounds about right, if these calipers are as good as any "fanny", then they would be wicked brakes!!! Putting a stop to anything and everything.

**cs363** · 25th September 2010, 10:58

Originally Posted by Gubb

You say Potato, I say that for all intents and purposes, Taiwan is China.

And seeing as the official name for Taiwan is the Republic of China, you would get a gold star....

(Although, not to be confused with the peoples Republic of China, which is mainland China)

**pete376403** · 25th September 2010, 12:02

Can anyone explain why the bolt mounting pattern of calipers has any effect on braking performance? I always understood that braking was more or less a function of pressure applied to the pad, and friction between the pad and rotor, so assuming nothing changes apart from the manner of bolting the caliper to the fork leg, why should radially mounted calipers be better?
Genuine question, not a piss-take.

**R6_kid:Me** · 25th September 2010, 12:16

Originally Posted by White trash

Can't say as I've ever seen a cool looking piece of turd mate, but whatever floats ya boat

I saw a cow turd that looked like Australia once.

**Shaun** · 25th September 2010, 12:36

Originally Posted by White trash

Can't say as I've ever seen a cool looking piece of turd mate, but whatever floats ya boat

That is only because its your face not mine you see in the mirror

**Tony.OK** · 25th September 2010, 12:51

Originally Posted by pete376403

Can anyone explain why the bolt mounting pattern of calipers has any effect on braking performance? I always understood that braking was more or less a function of pressure applied to the pad, and friction between the pad and rotor, so assuming nothing changes apart from the manner of bolting the caliper to the fork leg, why should radially mounted calipers be better?
Genuine question, not a piss-take.

I'd say its to do with directional forces, old calipers that bolted from the side have to deal with twisting from the caliper trying to go the same way as the disc is rotating.
Radial mounted can cope better because they're mounted inline so its not so much a twisting force.
Then there's mono block calipers which are milled from one piece of alloy, further reducing twisting etc.
The less distortion from mounting or calipers the more direct braking force can be applied to the disc/rotor.

Thats how I understand it with my limited knoweledge anyways.

**onearmedbandit** · 25th September 2010, 13:32

It is an interesting question though. My bike with non-radial mounted brakes will stoppie or lock the front. How much more braking force (on a road bike) can you use?

**Tony.OK** · 25th September 2010, 13:52

Originally Posted by onearmedbandit

It is an interesting question though. My bike with non-radial mounted brakes will stoppie or lock the front. How much more braking force (on a road bike) can you use?

Less effort for greater braking

Same reason for upgrading lines, master cylinders etc.

Watch Stoner's braking hand, just one finger