Front discs aand pads - Page 2

Brendan W · Jun 21st, 2018, 11:41

Quote:

Originally Posted by aland

I have a new set of 305mm discs going cheap if anyone is interested (bought in error!).

If I had a penny for every time I saw a post similar to that I would have ..... about 12p.
Which method did you use to measure them ?

aland · Jun 21st, 2018, 12:17

Quote:

Originally Posted by Brendan W

If I had a penny for every time I saw a post similar to that I would have ..... about 12p.
Which method did you use to measure them ?

I didn't - a mate ordered them online for his car, several months passed until we had a chance to fit them, found they were the wrong size, then bought the correct size from a local place.
When he tried to return the 305's they refused as too much time had passed.
They've sat in the garage ever since!

Georgeandkira · Jun 21st, 2018, 13:00

Ha-Ha, I remember the thread regarding flamboyant rotor measuring techniques.

To the OP: Removing a wheel is necessary for a hard measurement.

Take two 50cm pieces of flat wood like furring strips and hold them in a "V" shape with a clamp. VOILA', and instant big caliper.

NOTE: Two 20" pieces of furring will do.

Turbodave · Jun 21st, 2018, 13:09

I'd echo the physical measuring of the discs or if there are choices, buy them all and return what you don't use. Fell foul of that with my P1 T5 where both the dealer and my trusted factor said it had 286mm discs, transpires it had 302mm discs and so a debate ensued on line... with most saying it had been changed at some stage however it then transpired that on some random chassis break point on a certain year, there were cars fitted with the larger discs from the factory but for some reason it didn't reflect on the spec. So yes, always double check as stripping it down to discover they're wrong then getting the bus is a pain in the arse!

Leyburn · Jun 21st, 2018, 14:34

I went through these hoops last year.

With a 17" Orestys wheel and 305mm discs, I have a vertical measurement of 38mm between the outer edge of the disc and the inside of the wheel rim, measured using a piece of 2" x 1" (wood) held horizontally and marked with a pencil.

No responsibility if this doesn't work!

(image borrowed from internet)

Jun 21st, 2018, 13:00	#13
Georgeandkira Premier Member Last Online: Today 03:44 Join Date: Feb 2009 Location: Hackensack	Ha-Ha, I remember the thread regarding flamboyant rotor measuring techniques. To the OP: Removing a wheel is necessary for a hard measurement. Take two 50cm pieces of flat wood like furring strips and hold them in a "V" shape with a clamp. VOILA', and instant big caliper. NOTE: Two 20" pieces of furring will do.

Jun 21st, 2018, 13:09	#14
Turbodave VOC Member Last Online: May 2nd, 2024 08:34 Join Date: May 2011 Location: Fife	I'd echo the physical measuring of the discs or if there are choices, buy them all and return what you don't use. Fell foul of that with my P1 T5 where both the dealer and my trusted factor said it had 286mm discs, transpires it had 302mm discs and so a debate ensued on line... with most saying it had been changed at some stage however it then transpired that on some random chassis break point on a certain year, there were cars fitted with the larger discs from the factory but for some reason it didn't reflect on the spec. So yes, always double check as stripping it down to discover they're wrong then getting the bus is a pain in the arse!

Jun 21st, 2018, 14:34	#15
Leyburn Member Last Online: Oct 1st, 2023 16:31 Join Date: Jun 2014 Location: London	I went through these hoops last year. With a 17" Orestys wheel and 305mm discs, I have a vertical measurement of 38mm between the outer edge of the disc and the inside of the wheel rim, measured using a piece of 2" x 1" (wood) held horizontally and marked with a pencil. No responsibility if this doesn't work! (image borrowed from internet)

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