disk breaks!!!!!

Discussion in 'General Questions' started by hheltzer, May 12, 2010.

  1. hheltzer

    hheltzer Member

    what is the best set of disk breaks i could buy for a motoized bike
    ? i want the most well made disk breaks that evryone ones? which is the most effeciant? nicest pair that will last a long time? thanks
     

  2. motorpsycho

    motorpsycho Active Member

    That would be disk BRAKES, not BREAKS.
    if you have disk brakes, and your disk breaks...you are in serious trouble.
     
  3. Fabian

    Fabian Well-Known Member

    My experience is to use the largest and most powerful mechanical disk brake setup availabe: Avid BB7 mechanical brake caliper and a Shimano 8 inch disk rotor, as the metal Shimano uses has good feel and grip.

    Nothing else, and i mean, nothing else but disk brakes should be used on a motored bicycle, as they still work perfectly when soaking wet.

    Fabian
     
  4. hheltzer

    hheltzer Member

    so which do you sujest is the number 1 disk break?
     
  5. hheltzer

    hheltzer Member

    what about hydrolic disk breaks? hydrolic vs mechanical which is better and why? which would you go with y? advantages, disadvantages?
     
  6. hheltzer

    hheltzer Member

    also what size Avid BB7 mechanical brake caliper shoud i get?
     
  7. birddog1148

    birddog1148 Member

    I just got a used Artek Vigorous caliper and disc hub off Ebay. Took it down to the bike shop to have it put on a new Cranbrook wheel. The guy at the shop said welding the caliper mounting tab on the Huffy fork will weaken the fork. Didnt tell him it was going on a motorised bicycle. I wont go into the long explanation he gave about bike metalurgy but is a Huffy fork that High tech? If a guy was wanting front discs does he need a whole new fork as well? I have no doubt in my welding skills but how much should I pay attention to the guy at the shop? Should I be looking for some sort of fork clamps to mount the caliper?
     
    Last edited: May 13, 2010
  8. hheltzer

    hheltzer Member

    hello, so i just found out i my bike is not disk compatible, but i found out i could just change the front fork to a disk compatible one and only have disks in the front.. will only disk in the front be ok? will it be unsafe? will it be fine? y or y not?
     
  9. Fabian

    Fabian Well-Known Member

    Hydraulic disc brakes don't allow you to run a dual pull setup.

    There is only one size of Avid BB7 mechanical disck brake caliper - you just order the cheapest BB7 caliper you can find, and sell the disk rotor that comes with the caliper, and then order a Shimano 8 inch disk rotor to suit your hub and caliper adaptor to suit your forks.

    Fabian
     
  10. motorpsycho

    motorpsycho Active Member

    I am no authority on bike disk brakes and mounts, but this makes no sense to me.
    ok, if you buy a set of forks that has the caliper mounting bracket already on it, how is that bracket attached to the forks? it's WELDED on.
    so, how would welding a bracket to a set of forks that does not have a bracket, weaken them? forks that have the bracket already welded on, did not have that bracket at one time....same as a set of forks that doesn't have a bracket on it.
    that makes absolutly no sense to me at all.
     
  11. HseLoMein

    HseLoMein Member

    Welding metals after they have been tempered, will weaken the metal. the welding process heats up the metal to melting point, and when it re solidifies the metal has lost its temper, what most fabrication places do is weld everything, then put the frame, fork, whatever and heat treat it to get its overall strength back.

    but it wont weaken it enough to really fail, its just a small concern
     
    Last edited: May 14, 2010
  12. birddog1148

    birddog1148 Member

    what he said
     
  13. strotter

    strotter Member

    Hydralic is better then mechanical. They take less hand pressure to operate and the self adjust. I put a hydralic on the front of my beach cruiser and now I'm spoiled. I want to put hydralic disc on all my bikes.

    Regarding the welding question. When the tabs are welded during manufacturing, both compotents and rod are temperature controlled. If the different metals are heated to much it will weaken the metal. That all said, I welded mine on and took the risk. If you or your welder doesn't get the forks to hot, you should be OK.
     
  14. birddog1148

    birddog1148 Member

    Just got home from my old house and brought my Lincoln Pro Mig 175 with me Gonna weld it :devilish:
     
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