Rotors question

[eSOL]

Hi guys,


Looking at changing the rotors on my MC22 just for piece of mind. (not sure of the history of the brakes and things). Just wondering if anyone has used these on their bikes?

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/brakes/auction-592206488.htm

Can get Metalgear rotors which are aparently good quality but wondering if the above would be allgood?

[NinjaNanna]

you only replace rotors if they are worn below minimum thickness (stamped on the disc somewhere) or they are warped.

Don't replace them just because there's better things to spend money on. If you don't have access to some vernier calipers to measure their thickness then drop by your nearest bike store, I doubt they'd even charge you to check them.

[pete-blen]

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/brakes/auction-592206488.htm



yer can land those on yer door step for $60/70 off e-bay...

prob what he did..then tossed another $100 on them for TM..

[jellywrestler]

depends what the original form of the stainless was as some is rolled out before making discs and heat etc can make it want to go back to it's original form, unlikely with an american known product with their suing laws etc

[pete-blen]

depends what the original form of the stainless was as some is rolled out before making discs and heat etc can make it want to go back to it's original form, unlikely with an american known product with their suing laws etc

mostly all sheet metal starts off as a solid bar... peeled off with a knive when red hot..rolled to thickness...
the heat is the normaliseing process that induces a new memory into it...

One of the main idea of the wave design is to stop warping as the rotor heats up...
As theres more metal in the outside cirecumference than the inside it's able to expand
more... the spaces "wave' on the out side gives it somewhere to expand into so
removeing the need for it to warp..

[Owl]

Here's what I just purchased which was a little less $ and wasn't made in China. Though my rotor did need replacing.

http://www.ebay.com/itm/Galfer-Wave-Rotor-Rear-For-Honda-CBR-599-Triumph-Daytona-/111070464317

You'll be wanting new pads too!

[Drew]

I have heard that Metal gear rotors are made from plate. Because plate or sheet steel is made in rolls, when you heat it up it tries to warp back to it's natural state when it was rolled.

I dunno how bike rotors are normally made, but I do know a popular bike shop in Wellington will no longer deal in Metal gear because of the continual ongoing issues.

[Dogboy900]

I have heard that Metal gear rotors are made from plate. Because plate or sheet steel is made in rolls, when you heat it up it tries to warp back to it's natural state when it was rolled.

I dunno how bike rotors are normally made, but I do know a popular bike shop in Wellington will no longer deal in Metal gear because of the continual ongoing issues.

Awwww CRAP! I don't want to hear that! I replaced my rotors with Metal Gear ones about 6 months ago... Still all good so far.......:shifty:

[Drew]

Awwww CRAP! I don't want to hear that! I replaced my rotors with Metal Gear ones about 6 months ago... Still all good so far.......:shifty:If you're not having trouble, you might have some good ones. Or what I was told was not the full story.

I've been warned off them by a mechanic, and the parts department guy who sourced them. So if you do start having trouble, replace them with something else would be my suggestion.

[Dogboy900]

Yeah at the time I was tossing up between Metal Gear or getting some Galfer or EBC from the UK.

On the plus side I bought direct from Metal gear and they were excelent to deal with, good feed back and prompt shipping. I will just keep an eye on them as I said so far so good.

[nzmikey]

Yeah at the time I was tossing up between Metal Gear or getting some Galfer or EBC from the UK.

On the plus side I bought direct from Metal gear and they were excelent to deal with, good feed back and prompt shipping. I will just keep an eye on them as I said so far so good.

Metal Gear would not sell to me direct .... they sent me through bits4bikes ( or tried to )

[Drew]

Metal Gear would not sell to me direct .... they sent me through bits4bikes ( or tried to )

I think that comes down to being contractually bound, as a wholesaler to some shops/distributors. I have mostly only encountered it with getting bike bits, but I can't think of a parts distributor/importer/agent that sells to the public also.

There prolly are some, but I've always had to use a shop to order and pay. And I know quite a few guys in various wholesalers.

[Dogboy900]

Obviously I can be pretty persuasive ;)

Actually no idea why they were willing to sell direct maybe I caught them at a weak moment?

[nzmikey]

I think that comes down to being contractually bound, as a wholesaler to some shops/distributors. I have mostly only encountered it with getting bike bits, but I can't think of a parts distributor/importer/agent that sells to the public also.

There prolly are some, but I've always had to use a shop to order and pay. And I know quite a few guys in various wholesalers.

Yeah there was that .... I have had this "discussion" on a thread I started ages ago.... In short I "could" have had them sent to my Father n Law & got him to bring them over when he turned up ...

[HenryDorsetCase]

Yeah there was that .... I have had this "discussion" on a thread I started ages ago.... In short I "could" have had them sent to my Father n Law & got him to bring them over when he turned up ...

does your computer not get ebay? or demon tweeks? or dennis kirk?

[nzmikey]

does your computer not get ebay? or demon tweeks? or dennis kirk?

Ebay : I was wary of buying rotors from them as of most of them coming from China & yeah well

Was not aware of the other 2 ... but now are ... thanks :niceone:

[HenryDorsetCase]

Ebay : I was wary of buying rotors from them as of most of them coming from China & yeah well

Was not aware of the other 2 ... but now are ... thanks :niceone:

I like buying out of the UK vs the US: most of them will ship HM The Q Royal Mail (cheaper and in my experience very reliable).

Just be careful that the sites allow you to view the VAT EXCLUSIVE price, then add the shipping to that. I bought a pair of boots from Motolegends and didnt look hard enough, thought the price would reduce when I said I was outside the EU, didnt notice that it hadnt, added the postage and then when it arrived it was over the $400 threshold. My fault (I pressed the "pay now" button), but I dont think the website was very clear or set up for "out of EU" ecommerce But the difference was substantial: the GST and biosecurity levy and such they wanted to charge me was $170: taking that pair of boots up into the stratosphere. I had an email correspondence culminating with "I am rejecting the shipment and disputing the credit card charge" at which point they agreed to pick up those costs. That was impressive customer service. Just a heads up.

[HenryDorsetCase]

http://www.apracing.com/products/motorcycle.aspx


http://www.isrbrakes.se/

[nzmikey]

I like buying out of the UK vs the US: most of them will ship HM The Q Royal Mail (cheaper and in my experience very reliable).

Just be careful that the sites allow you to view the VAT EXCLUSIVE price, then add the shipping to that. I bought a pair of boots from Motolegends and didnt look hard enough, thought the price would reduce when I said I was outside the EU, didnt notice that it hadnt, added the postage and then when it arrived it was over the $400 threshold. My fault (I pressed the "pay now" button), but I dont think the website was very clear or set up for "out of EU" ecommerce But the difference was substantial: the GST and biosecurity levy and such they wanted to charge me was $170: taking that pair of boots up into the stratosphere. I had an email correspondence culminating with "I am rejecting the shipment and disputing the credit card charge" at which point they agreed to pick up those costs. That was impressive customer service. Just a heads up.

Yeah I was looking at that part of it ... I am looking at this place as well http://www.aa16.co.uk/store/cgi-bin/cp-app.cgi .... Nice cans for cheap !! check them out

[awesker]

I got a set of MetalGear front and rear discs for the RGV last year. I hadnt heard much about them but they were much cheaper than OEM or EBC's and were Aussie made over the Chinese shit on ebay/trademe. Have done a track day and some decent road rides with them and theyve held up perfectly fine. I was talking to Cycletreads about them and they said they use them as an alternative OEM replacement on bikes that come through needing new discs and have had no issues.

Getting them for a good price in NZ is a bit of a bugger though, I priced them up on metalgears website and on trying to purchase directly they put me through bits4bikes.co.nz, which put an extra hundy or so on the total price. Fuck that. I was planning on buying from metalgear website, send to my dad in brissy then get them sent to me in NZ and they still would have been cheaper than that fucking bits4bikes shithole website.

Fortunately after throwing my toys bits4bikes sold me the discs through Cycletreads at the price quoted on the metalgear website, which was good. It just fucks me off having a middle man taking a massive cut to do fuck all. /endrant

Good discs though.

OP, no point replacing your discs unless theyre under size. Put that money into getting new pads, braided lines, flushing the old brake fluid out. A master cylinder rebuild kit if its toast and replacement caliper piston seals are optional but given the bikes age could be a good idea, then she'll stop on a dime.

quick googled links:
Front Master Cylinder rebuild kit: http://www.ebay.com.au/itm/Genuine-Honda-CBR250RR-MC22-Front-master-cylinder-repair-kit-part-45530-471-831-/330922162238?pt=AU_Motorcycle_Parts_Accessories&hash=item4d0c7f783e
Braided Lines (front and rear): http://www.ebay.com/itm/Goodridge-Braided-Lines-HONDA-CBR250-RRM-RRX-MC22-90-9-/290697416736?pt=UK_Motorcycle_Parts&hash=item43aeea9020
Front pads, will need two, one for each caliper: http://www.ebay.com/itm/EBC-Front-Brake-Pads-CBR-250-RRL-RRN-RRR-MC22-1990-1994-Sintered-HH-/180997021057?pt=AU_Motorcycle_Parts_Accessories&hash=item2a24435d81
Front pistons and seals:http://www.ebay.com/itm/Honda-CBR-250-RRN-MC22-92-93-Front-Caliper-Piston-Seal-Kit-/181013059207?pt=UK_Motorcycle_Parts_13&hash=item2a25381687
Brake Fluid: http://www.motoone.co.nz/accessories/oils-chemicals/brake-fluid/motul-dot-4-brake-fluid-0-5l.html