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  1. #1
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    Disk brakes conversion possible?

    I have basic frame old school beach cruiser i want to install disk brakes in the front only.

    1. How to mount rotor my wheel hub is basic no thread or mounting holes it. Do i need to purchase new wheel or there's some adapter?

    I found this thing it threads on the hub, am i supposed to use rear hub in the front to bolt it on?
    Disk brakes conversion possible?-4.jpg



    2. Fork has no mounts for calipers i think this $6 adapter should work?

    Disk brakes conversion possible?-3.jpg
    Last edited by PimpMan; 12-04-2018 at 06:59 PM.

  2. #2
    Cleavage Of The Tetons
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    You will need a new hub.

  3. #3
    Adorable Furry Hombre
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    "Can you do it?"

    Yes.


    "Is it (really) a good idea?"

    No.
    "Refreshingly Unconcerned With The Vulgar Exigencies Of Veracity "

  4. #4
    Cleavage Of The Tetons
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    Rear hubs are between 130-135mm wide (typically) whereas front hubs are 100mm wide, so you would also need to fiddle with that.

  5. #5
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    Can I ask why you want to do this? What advantages do you expect to achieve?
    "With bicycles in particular, you need to separate between what's merely true and what's important."-- DCGriz, RBR.

    “Statistics are like bikinis. What they reveal is suggestive, but what they conceal is vital.” -- Aaron Levenstein



  6. #6
    RoadBikeReview Member
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    It'll look cool?
    BANNED

  7. #7
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    Quote Originally Posted by Lombard View Post
    Can I ask why you want to do this? What advantages do you expect to achieve?
    Catch a ride to the top of the mountain with your beach cruiser and coast down?

  8. #8
    I love to climb!
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    Quote Originally Posted by PimpMan View Post
    I have basic frame old school beach cruiser i want to install disk brakes in the front only.

    1. How to mount rotor my wheel hub is basic no thread or mounting holes it. Do i need to purchase new wheel or there's some adapter?

    I found this thing it threads on the hub, am i supposed to use rear hub in the front to bolt it on?
    Click image for larger version. 

Name:	4.jpg 
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ID:	324346



    2. Fork has no mounts for calipers i think this $6 adapter should work?

    Click image for larger version. 

Name:	3.jpg 
Views:	67 
Size:	125.1 KB 
ID:	324344
    You won't be able to use a rear hub in the front, as the spacing is too different. You would need to buy a new front wheel with a disc hub.

    The fork of the bike is not designed to handle a disc brake, so although that adapter may "work,"* I would definitely not recommend it. Beach cruisers generally aren't used in such a manner as to necessitate disc brakes. If you are using one in a manner that does, I would argue that you are using the wrong bike for the job and should look into a new bike.

    *I can only really see it working with a bolt on hub, and you'll probably need a longer axle, as it looks like that adapter needs to also have the axle sit in it along with the fork dropout.
    Edit: actually may not need a longer axle, just different size spacers to get the spacing right, since the adapter sits inside the frame/ fork.
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  9. #9
    Russian Troll Farmer
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    Somehow, I think this post was a "troll".
    "L'enfer, c'est les autres"

  10. #10
    RoadBikeReview Member
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    Quote Originally Posted by No Time Toulouse View Post
    Somehow, I think this post was a "troll".
    With a name like PimpMan, how could you tell?
    "With bicycles in particular, you need to separate between what's merely true and what's important."-- DCGriz, RBR.

    “Statistics are like bikinis. What they reveal is suggestive, but what they conceal is vital.” -- Aaron Levenstein



  11. #11
    Russian Troll Farmer
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    Quote Originally Posted by Lombard View Post
    With a name like PimpMan, how could you tell?
    I remember about 10 years ago, I saw an obituary for a guy named (enter first name) "Smutman" (enter last name). I wonder if that was his brother?
    "L'enfer, c'est les autres"

  12. #12
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    Quote Originally Posted by Lombard View Post
    Can I ask why you want to do this? What advantages do you expect to achieve?
    I am converting to gasoline bike i want to have better stopping power since its going to go up to 30mph.


    Quote Originally Posted by Jwiffle View Post
    The fork of the bike is not designed to handle a disc brake, so although that adapter may "work,"*
    Beach cruiser fork i have is super fat and more reliable than one on road bike, so i cannot see why not.

    People use beach cruiser frames for gas conversion most of the time.

  13. #13
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    Quote Originally Posted by PimpMan View Post
    I am converting to gasoline bike i want to have better stopping power since its going to go up to 30mph.

    Beach cruiser fork i have is super fat and more reliable than one on road bike, so i cannot see why not.

    People use beach cruiser frames for gas conversion most of the time.
    Because what's the worst that could happen, right?

    Hint: It's not good

  14. #14
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    Cool, man. But I prefer to make a new bike instead of that.

  15. #15
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    It's stuff like this than makes the Darwinian awards, and would have been a great "Tool Time" episode. I wouldn't do it, no way. A beech cruiser probably isn't safe at 30mph either. Why not just get an E-Bike? Then you know it's designed to do what you want.
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  16. #16
    Russian Troll Farmer
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    Well, since he's told us that it's a gasoline conversion, now's the time to tell him that this is NOT a forum for motorcycles. I really think that he should go to Bikeforums.net. It's where he belongs, not here.

    Over there, the 'echo chamber' will reassure him that it IS a good idea, and he can happily ride his ill-conceived death-trap until the day he smashes into a tree at full speed, because of some part failure of his dumb conversion.
    "L'enfer, c'est les autres"

  17. #17
    a real member's member
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    Quote Originally Posted by Srode View Post
    It's stuff like this than makes the Darwinian awards... Why not just get an E-Bike?
    yeah, but i've got an old lawnmower, a beach cruiser and $30 to spend on a good brake and gasoline.
    Yossarian: don't worry. nothing's going to happen to you that won't happen to the rest of us.

  18. #18
    Russian Troll Farmer
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    Reminds me of a guy I knew once who wanted to convert his snowblower into a lawnmower....
    "L'enfer, c'est les autres"

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