Such thing as truing offset?

[Finnigan]

Got the wheels on my cb450 laced and trued by a trusted shop, tried to install the front brake caliper and the caliper arm is offset from the disc. The wheel spins true, no wobble or hop in the rim, NEW brake pads can hug the disc despite a slight angle...I'm out of ideas! I have the stock spacers on the axle so I know its sitting in the middle of the forks.

QUESTION: When truing a wheel is there such thing as an offset to allow for front disc? If so does anyone know what it is for a cb450?

 

[o1marc]

The spokes and rim should have nothing to do with the relationship of the hub/brake parts.
Explain your thinking on how moving the rim over will change your dilemma?

 

[irk miller]

Got a pic?

 

[xb33bsa]

it is an unusual caliper bracket ,it was the early days dontcha know
i think what you be seeing is normal the pads wear at an angle the caliper swings on the pivot is why and it is spring laoded as well not sure why the spring because it will make the brake constantly drag my olny idea is on a very cold day with the shitty friction coeficient of the stainless disc m,y guess is it wont brake at all at 30 degrees f !!!!! unless already hot ;D

 

[grcamna5]

it is an unusual caliper bracket ,it was the early days dontcha know
i think what you be seeing is normal the pads wear at an angle the caliper swings on the pivot is why and it is spring laoded as well not sure why the spring because it will make the brake constantly drag my olny idea is on a very cold day with the shitty friction coeficient of the stainless disc m,y guess is it wont brake at all at 30 degrees f !!!!! unless already hot ;D

Have you tried adjusting the caliper using the adjustment screw/bolt which is inside that spring ?

 

[xb33bsa]

Have you tried adjusting the caliper using the adjustment screw/bolt which is inside that spring ?

no i have not, i did not know, it was an adjuster, that answers that
i have parted out at least 10 bikes with that caliper and that is the only reason i know the pads wear at an angle and why ,that was the swinging caliper bracket, its honda's first try and early design in mc disc brake history,that was dropped by honda and not adopted by any other mfg that i know of
i could imagine a lot of owners wanting the dealer to fix the crooked caliper and crooked pads !!!it may have been irate frustrated dealers screaming at honda that culled the design
i wonder why it would need adjustement ? what does the service manual say? its quite interesting,really, thanks !

 

[grcamna5]

That is weird how they wear on an angle..

 

[xb33bsa]

i can only deduce its because as they wear they swing on a hinge and maybe if one wears more ? i dunno ? is the pivot off centerline of the disc ? now i am confused,my whole theory is likely shot ! i may have to go look at the one i have left

 

[o1marc]

A pic like this or one from the front showing the offset would certainly be helpful.




This is a 360, but should be the same set up.

 

[Finnigan]

Here's a pic, i adjusted the caliper arm to be parallel with the tire to compare with the disc

 

[o1marc]

Compress the piston all the way in, loosen the adjuster screw so the caliper "flops" back and forth. Apply the pressure and then adjust screw to locate the arm and you should be good to go.