Front brake disks (rotors) with ABS replacement

svistoplas

.020 Over

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Sep 5, 2023

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Got both 2013 Roadster and 2015 Touring

• Jan 27, 2025

• #1

Hi!

I am looking forward to replacing the front brake disks on my Roadster 2013 ABS by myself.
Original service manual is helpful, however it doesn't address the fact of presence of ABS.

I heard that if you do it yourself, the ABS light goes on permanently and you need to reset it at the dealership.
Is that true?

And please share any valuable experiences you might have got while doing this job!

Thank you
Alex

 

Lemieuxfan

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2014 Rocket III Roadster

• Jan 30, 2025

• #2

nahh not true well maybe....; i've replaced brake pads before my ABS light has always turned off about 2-3 seconds after startup

 

R-III-R Turbo

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• Jan 30, 2025

• #3

Pads aren't related to the ABS, but discs are.
Changing discs doesn't upset the ABS system unless you don't put the ABS disc back on top of the left brake disc, or you damage the cable to the sensor or something

Brembo do front discs for Roadsters, the look like factory discs and are cheaper than Triumph.. and they're Brembo.

Brembo rotors (78B40873) on the left below and pads (07SU14SA) on front wheel

 

Last edited: Jan 30, 2025

Lemieuxfan

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2014 Rocket III Roadster

• Jan 31, 2025

• #4

R-III-R Turbo said:

Pads aren't related to the ABS, but discs are.
Changing discs doesn't upset the ABS system unless you don't put the ABS disc back on top of the left brake disc, or you damage the cable to the sensor or something

Brembo do front discs for Roadsters, the look like factory discs and are cheaper than Triumph.. and they're Brembo.

Brembo rotors (78B40873) on the left below and pads (07SU14SA) on front wheel

Click to expand...

did you notice improved stopping with the brembo vs factory discs?

 

R-III-R Turbo

Mine is the biggest :)

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2472cc Supercharged Carpenter Rocket III Stroker

• Feb 1, 2025

• #5

I had Triumph rotors and Brembo pads for years before this so didn't notice anything radical when moving to Brembo rotors too

 

atomsplitter

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• Feb 1, 2025

• #6

The ABS applies to the sensor to speed ring distance causing the light to come on, not the disk itself. If the gap is too small or too large the sensor doesn't create the 'frequency' the ECU is looking for and the light comes on. So if the disks you are putting on change the distance of sensor to speed ring then you may need to adjust. I had this happen when I went to wave rotors on my Thuxton R and had to shim the sensor mounting with a washer, the sensor was rubbing the speed ring.