Skim disc

[NsR09]

Anyone here got skim their brake disc b4?

[NsR09]

Anyone??

[encore]

Me shop did it when i bought bike. The disc is significantly thinner though.

[Ah Pek]

Anyone here got skim their brake disc b4

 

Yes...but what is it that you want to know?

[rayhunter]

is it advisable? what's the benefit of it?

[Ah Pek]

is it advisable? what's the benefit of it?

 

If you notice the used rotor disc after long usage, there are grooves and some are deeper than the others. The shiny surface ones are the one deepest in a normal case. What happen is that when you replace a new pad, full surface contact is less from those of the deeper grooves...thus effectiveness for stoppage is affected. In general and idealy, the rotor disc surface should be as flat as possible.

[NsR09]

Yes...but what is it that you want to know?

 

Wanted to know hw much & where to do it.. Thanks

[f.zi]

sorry to interrupt. but if disc brake is bend/warp, is there anyway that we can flatten it by pressing?

[JbAtRaCeR]

sorry to interrupt. but if disc brake is bend/warp, is there anyway that we can flatten it by pressing?

 

Can be done also but will not be as perfect as a brand new ones...

[f.zi]

thanks for the info:thumb: ill just get new ones instead

[Ah Pek]

sorry to interrupt. but if disc brake is bend/warp, is there anyway that we can flatten it by pressing?

 

So far never know of anyone ever doing that lah..but if it warped before...it would have weak infrastructure inbetween the metal itself for sure...just a thought...better not lah. If its an indoor use iterm can gamble..but on the move and on the road..kind of worry.

[Ah Pek]

Wanted to know hw much & where to do it.. Thanks

 

I had my done at Glend Motor a year ago..dunno exactly how much as it was lump together with other repair works. My guess is about $50.00 or so for a pair.

[YADI05]

i've done it before at HKL, if not mistaken bout $50. So far so good but not affective as original one after been done.

[Ah Pek]

i've done it before at HKL, if not mistaken bout $50. So far so good but not affective as original one after been done.

 

Huh?... how come?...may be not level well. Mine bite solid leh

[NsR09]

i've done it before at HKL, if not mistaken bout $50. So far so good but not affective as original one after been done.

 

Sorry is $50 for a pair or just one piece?

[IST]

Go along Dunlop street and look for Da Fei De, the shop was along the corner. So far almost all Singapore bikeshop send the bend fork, brake disc, cab mod and many more to this old shop. If the shop had move don't blame me as 19yr never visited them but they willn't move far or can ask Jeffery from Mah motor, may be he will tell u where..

[rayhunter]

If you notice the used rotor disc after long usage, there are grooves and some are deeper than the others. The shiny surface ones are the one deepest in a normal case. What happen is that when you replace a new pad, full surface contact is less from those of the deeper grooves...thus effectiveness for stoppage is affected. In general and idealy, the rotor disc surface should be as flat as possible.

 

:thumb:thanks..so is a limit for skimming? as in how many times before it had to change to a new piece?

[Ah Pek]

thanks..so is a limit for skimming? as in how many times before it had to change to a new piece?

 

Once is enough for me...unless desperate case..boh_pian lah.

[PaLmEr]

pressing back warped rotors will not work well as they are subjected to high temperature conditions. The rotors will simply warp again after awhile.

[MUSHA]

The discs are already so thin. Skimming them will run into the risk of the discs cracking in high heat. Best to get new ones. Safety 1st - it's the only thing that stops your bike.

[rayhunter]

Once is enough for me...unless desperate case..boh_pian lah.

 

is it a case whereby only a thin layer of the disc surface is being skimmed off?

[Ah Pek]

is it a case whereby only a thin layer of the disc surface is being skimmed off?

 

Depends..if the deepest groove is very deep..no point unless you don't mind just superficial glazing it. The worst damage is that when rider don't change their worn out brake pad on time..till the pad metal holder iron scratches the disc...amnnn!!!...that's deep and you can always see this vividly nearer the edge circumference of the rotor disk.

 

Anyway...I have yet to see or hear of any crack rotor disc in my years of riding..I doubt it would..otherwisewe would hear it from "Ebnduro" races..."warp" yes.

[rayhunter]

The worst damage is that when rider don't change their worn out brake pad on time..till the pad metal holder iron scratches the disc...amnnn!!!...

 

i guess that will create some sparks ya...

[Ah Pek]

i guess that will create some sparks ya...

 

Sound a bit like finger nails scratching classsroom blackboard...eyikes!