Can we talk MK1 brakes for a second?

[dubai gti]

Jace,

Try the dude on ebay, (the one who inundates the VW with rotors) who is based in Melbourne. I paid $110 for ventilated 239mm rotors only a couple of months back and they are fine !!

[Jace]

Aren't they around 20mm thick and non-compatible with standard GLS calipers?

... and talk about inundation! What's the point in that!

[Jarred]

there are two types jace, just make sure you get the solid ones. IIRC correctly they're 12mm thick. GTI ones are vented and around 20mm thick. Have a look through Pete jones' brake thread, pretty sure he's put all the info in there.

[sports racer]

If you're really keen you can fit bigger disks from an old Sigma together with Commodore calipers. Makes a great improvement in stopping power but you need 14" wheels to clear the calipers.

Easier to contact Matt at Camden GTI and fit late model disks and calipers.

[Jace]

All good, I read through the brake section of the Haynes manual I've got the other day with all the specs (thickness etc)
I was just wondering if the small-rotor calipers can fit thicker rotors by spreading apart the way they do by fluid. So, answer is no from what you've said Jarred.

Solid rotors are 12mm thick, minimum thickness 10mm.
Ventilated rotors are 20mm thick, minimum thickness is 18mm.

But Paul, wouldn't that require caliper adaptors? Or do they actually bolt up the exact same?!
And what model Commonbore calipers... VT twin piston?

[sports racer]

From memory (and you have to remember this was over 20 years ago) the Commodore calipers bolt straight on.

You need to find a museum that has old Sigmas and Commodores for the parts.

Don't fit standard Golf brakes, GTI ventilated disks and calipers stop heaps better and should still be cheap.

[Jace]

I'm not bothered by an upgrade. My current daily is even older and therefore I'm used to massive breaking distances.

That's pretty cool that they can bolt straight on. 3/12 of the guys I work closely with are typical commodore guys (one's a VL nut, one's a VS nut, one's a general commodore nut haha)

If you think that conversion/upgrade will not only be a straight bolt on process but cheaper too, it sounds great!

[Jarred]

there was a thread on hear a while back, someone did a complete write up on chucking commo calipers and magna rotors on a golf, if you search hard, you might be able to find it still!

[julian_s13]

Will mark 2 gti calipers / rotors fit on a mark one ? non gti