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Rotor centreline?

  • HOG63
    HOG63
    4 years ago
    I searched but can’t find particular answers. 
    Here goes:

    Putting a custom wheel on the front of my ‘05 Sporty. (Now evenly centred within fork lowers.) 
    Need to ensure I got the rotor centred in the stock (2piston) caliper. 

    Is there a mark or other on the OEM caliper? Can’t see one. 
    Or should I just apply the brake then release, then see where the pads sit and measure any rotor-pad gap on either side?

    Then perhaps I can shim over the caliper or rotor accordingly. 

    Thanks
  • Krash Kinkade
    Krash Kinkade
    4 years ago
    I have always, looked to see if there is some clearance on each side of brake pads to disc. And with wheel off the ground & after applying the front brake pressure to check they work. spin the front wheel make sure it spins freely. If not check to see what side the pad is dragging , & adjust wheel over till clearance looks same. could use a feeler gauge if you want. Also make sure front axle tight and no side to side movement from front wheel. good luck.
  • HOG63
    HOG63
    4 years ago
    Thanks Krash. 
    With the 2-piston caliper, I wasn’t sure if that was the right way. I’ll try it. 
    Cheers. 
  • HOG63
    HOG63
    4 years ago
    Seems that it was best to just use the brakes and measure (feeler gauge) each side. 
    Didn’t need to shim the caliper after all.

    Thank you. 
  • Krash Kinkade
    Krash Kinkade
    4 years ago
    Quoting HOG63 on 06 Jul 2019 02:11 PM

    Seems that it was best to just use the brakes and measure (feeler gauge) each side. 

    Didn’t need to shim the caliper after all.

    Thank you. 

    Good Stuff, just to double check lift front wheel check wheel spins freely.
  • Robeywan12
    Robeywan12
    4 years ago
    Hi there
    New to forums and I’m sure I’m on the wrong topic but can someone point me to/give advice as to where I can purchase aftermarket rear indicator/brake combo lights for my XL Nightster. One of mine is leaking but I don’t want to spend 300$ at HD for the same bulb style which I’m not fond of. eBay has a few options but I’ve sent them back as they’re rubbish. 
    Any help would be appreciated

    Thanks

    Robey
  • tussuck
    tussuck
    4 years ago
    Quoting Krash Kinkade on 05 Jul 2019 09:15 PM

    I have always, looked to see if there is some clearance on each side of brake pads to disc. And with wheel off the ground & after applying the front brake pressure to check they work. spin the front wheel make sure it spins freely. If not check to see what side the pad is dragging , & adjust wheel over till clearance looks same. could use a feeler gauge if you want. Also make sure front axle tight and no side to side movement from front wheel. good luck.

    Question though.  I thought that only ONE side actually moves on the caliper.  ie the inner pad is static against the caliper body while the outer half of the caliper is the one with a piston that moves in and out.  The entire system is self-centering so a feeler gauge will be useless.
    So would the way to measure be more around how extended the piston is from the bore?  
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