Mechanics Quick Question Thread [Ask Questions Here]

PB Forum :: Mechanics' Lounge
Mechanics Quick Question Thread [Ask Questions Here]
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flag Haddow-B
Posted: May 24, 2019 at 16:00 Quote
Looking to buy a new bearing. does anywhere know of a place online that doesn't charge 30$ to post 1 bearing.
flag R-M-R
Posted: May 24, 2019 at 16:10 Quote
Haddow-B wrote:
Looking to buy a new bearing. does anywhere know of a place online that doesn't charge 30$ to post 1 bearing.

eBay. NTN for $10 (shipped) or no-name for as little as $1.50 (no promises of quality, though).
flag cyberoptixs
Posted: May 24, 2019 at 16:25 Quote
Haddow-B wrote:
Looking to buy a new bearing. does anywhere know of a place online that doesn't charge 30$ to post 1 bearing.

chain reaction cycles sells bearings and check AliExpress for cheap ones
flag cyberoptixs
Posted: May 24, 2019 at 16:38 Quote
So I bought some RT86 rotors and can't get the things to bed in properly, I used new pads too and the braking power is kinda meh. Any ideas
flag dhmtbr777
Posted: May 24, 2019 at 17:16 Quote
Burn those johnnies with a clean flame, try again.
flag Nobble
Posted: May 24, 2019 at 17:16 Quote
Haddow-B wrote:
Looking to buy a new bearing. does anywhere know of a place online that doesn't charge 30$ to post 1 bearing.
your local shop?

Not trying to be a dick, but that's the perfect sort of part to just go buy. Your profile says you're in Whistler, somewhere there will have one.
flag Nobble
Posted: May 24, 2019 at 17:18 Quote
dhmtbr777 wrote:
Burn those johnnies with a clean flame, try again.
Yeah, no.

That doesn't work.
flag dhmtbr777
Posted: May 24, 2019 at 17:22 Quote
It does but go off
flag Nobble
Posted: May 24, 2019 at 17:32 Quote
If you try and burn stuff off you're gonna achieve one of a few things:

a. Contaminate them more with whatever you used to heat them

b. Warp the rotor (and potentially delaminate an icetech)

c. Mess with the heat treatment of the rotor and either harden or soften the surface depending on the heat treatment of the surface to begin with.
flag spaceofades
O+
Posted: May 24, 2019 at 17:46 Quote
dhmtbr777 wrote:
Burn those johnnies with a clean flame, try again.
don't put a flame to icetec rotors. Very bad.
flag freestyIAM
Posted: May 24, 2019 at 18:27 Quote
spaceofades wrote:
dhmtbr777 wrote:
Burn those johnnies with a clean flame, try again.
don't put a flame to icetec rotors. Very bad.

Idk about icetec rotors but I've had great success with restoring regular steel rotors by pouring some IPA on them and lightin em up. It's not hot long enough to mess with heat treatment or to warp the rotors. If you're taken a blowtorch to them until the go cherry red, then ya sure that would mess up your rotors.
flag dhmtbr777
Posted: May 24, 2019 at 18:29 Quote
Yeah it’s a known thing you can do. Apperantly not with icetechs
flag cyberoptixs
Posted: May 24, 2019 at 18:36 Quote
Yea I know not to heat up rotors with flames lol... I was thinking of maybe scuffing the surface with Emery cloth and then wash in isopropyl.
flag freestyIAM
Posted: May 24, 2019 at 18:37 Quote
dhmtbr777 wrote:
Yeah it’s a known thing you can do. Apperantly not with icetechs

Arm chair engineering analysis of why icetec rotors don't play nice with fire anyone?
flag Duderz7
Posted: May 24, 2019 at 18:44 Quote
Some Shimano rotors are specific to a certain pad compound, some cannot be used with metallic pads

 


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