[wood booger]

Anyone know where to get an unvented, round (no wavy profiles), 203mm rotor?

Magura had one back in the day I believe.


It will be used for data aquisition purposes.

 

[Gary]

Hope do custom rotors

 

[wood booger]

Hope do custom rotors

Yeah, but there is a bunch of water in the way.

Anyone in the US?

 

[Mr Jones]

You could probably get some of the older hayes rotors, have a shop weld the holes and flat grind the whole thing. Gator and Aztec brands have basic looking rotors but they are drilled as well

 

[kidwithbike]

welding that thin material would likely cause significant warping
the weld material would more than likely be harder and have a different coefficient of friction than the rotor.
also keep in mind rotors are stainless.

 

[ridiculous]

you could buy a piece of steel and use an old shimano rotor to make a template and then cut it yourself.

 

[buildyourown]

Waterjet. I bet you could get one cut for $50.

 

[rowlands]

avid http://bike.com/avid-g3-solid-sweep-disc-rotor-brake-rotors-and-adapters

 

[BmxConvert]

Yeah, but there is a bunch of water in the way.

Anyone in the US?

Poor excuse. We've had 2 of them done up with custom mounting patterns. It was like $60usd shipped for each of them. They were in the shop within a week.

 

[HAB]

You could probably get some of the older hayes rotors, have a shop weld the holes and flat grind the whole thing. Gator and Aztec brands have basic looking rotors but they are drilled as well

No way that's going to work. As has been noted, welding something that thing is going to warp the **** out of it. And even grinding something that thin warps it a little.

 

[HAB]

Waterjet. I bet you could get one cut for $50.

This. It would be stupidly easy with a waterjet.

 

[Brian HCM#1]

Hope do custom rotors

I don't think they do that any longer, at least here in the US.

 

[Chaingangster]

You can get non-vented rotors from Avid to deal with resonance issues. I don't know about an 8" though.

Nevermind, I just saw Rowlands link above.

 

[BmxConvert]

I don't think they do that any longer, at least here in the US.

Contact the US Hope center, place your order, they get cut oversea's and shipped to the US. Super quick, cheap, any bolt pattern/size you want and it's quick. Usually about a week. We've done 2 of them this year for some old Coda and formula 4 bolt hubs that we needed to upgrade disc sizes on.

 

[Brian HCM#1]

Contact the US Hope center, place your order, they get cut oversea's and shipped to the US. Super quick, cheap, any bolt pattern/size you want and it's quick. Usually about a week. We've done 2 of them this year for some old Coda and formula 4 bolt hubs that we needed to upgrade disc sizes on.

I know they offer different hub options, but as far as custom made rotors other than bolt pattern, not sure.

 

[TheMontashu]

Yeah, but there is a bunch of water in the way.

Anyone in the US?

Phone's and postal services tend to make that less of an issue....... About as much of an issue as ordering something from some one else in the US and getting it shipped.........

 

[wood booger]

Local waterjet cutter and some 0.063" stainless plate looks like a winner. I think trying to modify an unvented rotor on the CNC would have gotten ugly.

We'll see how flat they come out, but you can't beat $75 for a pair of them!