Disc Rotor Cleaning

For discussions about bikes and equipment.
foxychick
Posts: 246
Joined: 5 Jul 2012, 12:05am

Disc Rotor Cleaning

Postby foxychick » 15 Jan 2019, 4:38pm

Anyone used fairy liquid and hot water to clean disc rotors or are you better using a specific disc brake cleaner like fenwicks or muc-off?

reohn2
Posts: 35309
Joined: 26 Jun 2009, 8:21pm

Re: Disc Rotor Cleaning

Postby reohn2 » 15 Jan 2019, 5:56pm

I've used disc brake cleaner,White Spirit,engine degreaser and washer them off with washing up liquid in warm water all without any detrimental effect.
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I cycle therefore I am.

Brucey
Posts: 34864
Joined: 4 Jan 2012, 6:25pm

Re: Disc Rotor Cleaning

Postby Brucey » 15 Jan 2019, 6:05pm

whether any one thing gets your discs clean or not depends on what the contaminant is, exactly.

Also note that the cut edges of the disc can hold a surprising amount of contamination; just wiping the faces of the disc isn't always sufficient.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

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Redvee
Posts: 2161
Joined: 8 Mar 2010, 8:58pm

Re: Disc Rotor Cleaning

Postby Redvee » 16 Jan 2019, 1:13am

foxychick wrote:Anyone used fairy liquid and hot water to clean disc rotors or are you better using a specific disc brake cleaner like fenwicks or muc-off?


Worked for me when I cleaned the spares rotors I had kicking around and wanted to get the spare pair wheels ready to ride at short notice. I now have three pairs of wheels for two bikes and the spare pair have mismatching skewers, thought I had a matching pair till I put the skewers through the frame :(

mnichols
Posts: 1412
Joined: 22 Apr 2013, 4:29pm

Re: Disc Rotor Cleaning

Postby mnichols » 16 Jan 2019, 10:50am

My bike gets a quick brush with water and car wash stuff after every ride including the rotors and the frame wiped down with a rag.

Then I give the rotors a clean with specialised cleaner every once in a while when I have more time or before a trip

LittleGreyCat
Posts: 497
Joined: 7 Aug 2013, 8:31pm

Re: Disc Rotor Cleaning

Postby LittleGreyCat » 17 Jan 2019, 11:49am

Is this a big issue?
As one new to discs on a bike I assumed that they were self cleaning as with a car, or cycle rim brakes.
Unless, of course, I should have been diligently cleaning my rims all these years.

bgnukem
Posts: 169
Joined: 20 Dec 2010, 5:21pm

Re: Disc Rotor Cleaning

Postby bgnukem » 17 Jan 2019, 11:54am

I tend to use just a damp cloth. The holes can hold more muck as Brucey says so maybe a nailbrush would be handy to dislodge some of this then wipe with a damp cloth, perhaps with some soap if there's any oil or grease on the rotor.

Much less hassle than constantly cleaning the rims of rim-braked wheels!

MikeDee
Posts: 571
Joined: 11 Dec 2014, 8:36pm

Re: Disc Rotor Cleaning

Postby MikeDee » 17 Jan 2019, 8:30pm

Brake manufacturers recommend alcohol only. Brake cleaner leaves a residue.

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Redvee
Posts: 2161
Joined: 8 Mar 2010, 8:58pm

Re: Disc Rotor Cleaning

Postby Redvee » 18 Jan 2019, 1:18am

MikeDee wrote:Brake manufacturers recommend alcohol only. Brake cleaner leaves a residue.


Tried it with a bottle of Corona and decided that it was a waste of good beer :lol:

Witterings
Posts: 311
Joined: 8 Jun 2018, 10:17am

Re: Disc Rotor Cleaning

Postby Witterings » 18 Jan 2019, 10:19am

Isopropyl alcohol

pwa
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Joined: 2 Oct 2011, 8:55pm

Re: Disc Rotor Cleaning

Postby pwa » 18 Jan 2019, 10:26am

If it were me I would start by using washing up liquid with hot water and only move on to solvents if that didn't give a good enough result. What happens if you get these solvents on your tyres, as you will?

PDQ Mobile
Posts: 2744
Joined: 2 Aug 2015, 4:40pm

Re: Disc Rotor Cleaning

Postby PDQ Mobile » 18 Jan 2019, 10:34am

MikeDee wrote:Brake manufacturers recommend alcohol only. Brake cleaner leaves a residue.

+1
Methylated spirit.

reohn2
Posts: 35309
Joined: 26 Jun 2009, 8:21pm

Re: Disc Rotor Cleaning

Postby reohn2 » 18 Jan 2019, 12:01pm

pwa wrote:If it were me I would start by using washing up liquid with hot water and only move on to solvents if that didn't give a good enough result. What happens if you get these solvents on your tyres, as you will?

You spray/pour some on a square of kitchen roll and wipe the rotor clean,if you've had a particularly muddy mucky ride or series of rides ie;cake on muck,you wash the rotor and caliper first with washing up liquid in water with a soft brush,then clean them with brake cleaner.
-----------------------------------------------------------
I cycle therefore I am.

Brucey
Posts: 34864
Joined: 4 Jan 2012, 6:25pm

Re: Disc Rotor Cleaning

Postby Brucey » 18 Jan 2019, 12:27pm

MikeDee wrote:Brake manufacturers recommend alcohol only. Brake cleaner leaves a residue.


depends on the brake cleaner. Most don't leave any such residue, but there are presumably some bad ones out there too. It is not at all difficult to test for this before you buy/use any solvent.

If you want a cheap/good solvent for this sort of cleaning in a small quantity an alternative is cigarette lighter fluid. You can get 100ml for £1 in the pound shop.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

Suffolker
Posts: 143
Joined: 5 Jul 2014, 7:04am

Re: Disc Rotor Cleaning

Postby Suffolker » 18 Jan 2019, 6:32pm

I use surgical spirit or isopropyl alcohol, with rags, cotton wool and buds, and sometimes an old toothbrush for the cutouts.

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