plz help with buying right disc brake rotor.

[locko90]

I took my front wheel in to get a new disc rotor fitted after 3 days I went in to pick it up and they said they cant get a disc to fit my front wheel hub.

I have been looking on ebay to get one with the right measurements, some are close but are not precise.

can anyone help me on what disc I should get to fit my front wheel.

added pics there not clear so I added measurements in, and measurements are not exact maybe one millimeter out as I cant get the tape on the edges properly.

 

[my67xr]

What bike is it for ?
What is the O/D of the original disc ?
I'm guessing it's for the front ?

 

[locko90]

Its for a crossfire Cf 125, not sure what od of the original disc was as there wasnt one when I bought it. And yeah its for the front.

 

[my67xr]

The Crossfire spec's list the CF125 as having a 210mm front disc in their part's manual, click on the pdf link at the bottom of the page.
Crossfire Motorcycles - CF125 125cc Dirt Bike


I have a set of those wheels on my old Atomik ProX 125, they have a strange pattern hub.
You might be able to find some old disc's at Atomik Motorbikes for Sale Australia ? Quad Bikes & Mini Dirt Bikes | Atomik
Or try a Crossfire dealer- Crossfire Motorcycles - Australia Dealers

 

[locko90]

cant find anything on atomik site and the shop I took it to was a crossfire dealer they couldn't get a disc ordered in for it. maybe if I get a disc that's close to my hub do u reckon I could drill the holes out a bit to make it it fit?
this ones got the right mounting holes but its 185mm od, would it just be to small ?

Kayiko NEW Front Brake Disc Rotor FOR 50cc 125cc Honda Style Dirt PIT Trail Bike | eBay

 

[my67xr]

It seem's strange that they told you they cant supply a new part.
I have emailed Crossfire asking about spare parts for you.
I will let you know what their reply is.

That disc you linked above, you won't be able to drill it as disc rotor's are hardened.
Also if it is too small (Discs' O/D), the brake pad's will only contact part of the braking surface and will wear quickly.

 

[locko90]

righto, didn't think of that, this sucks I might have to buy a new rim with disc, but I don't want to.
I didn't think getting a disc for the wheel would be such a big deal.

thanks for sending an email to crossfire my67xr i hope they got one :hail:

 

[locko90]

hey mate do you recon this would fit?, its 70mm mounting holes certer to center, that's only 3 mm off what I need, pretty close the center hole is the same 76mm, this disc looks like it would fit its so close.

210mm Front Brake Caliper Disc Disk Rotor PIT PRO Trail Quad Dirt Bike ATV Buggy | eBay