Coaster brake not working with sprocket

Discussion in 'Bicycle Repair' started by Frankfort MB's, Jun 3, 2016.

  1. Frankfort MB's

    Frankfort MB's Well-Known Member

    I have a shimano CB-e110 and it works with the sprocket off but when I put it on its locked up. Sure I messed something up putting it on but can't figure it out suggestions?
     

  2. Frankfort MB's

    Frankfort MB's Well-Known Member

    Found the problem, apparently this wheel will not take rag joint.... Somebody's got to find a new wheel:)
     
  3. Greg58

    Greg58 Member

    Sometimes you'll have to bent the brake arm to clear, I've also had to open up the center of the sprocket to clear the dust seal.
     
  4. Frankfort MB's

    Frankfort MB's Well-Known Member

    Might try boring out the center of sprocket. The brake arm has nothing to do with it since it wasn't even on the wheel lol
     
  5. HeadSmess

    HeadSmess Well-Known Member

    no brake arm? cool.

    you probably wont be posting on here for much longer as you may DIE after the axle lets go, and either locks up solid or falls apart. been there, done that...the brake arm really does need to be attached...and held from rotating.

    maybe i exaggerate a little but seriously... you cannot take the arm off or leave them unsecured to the stay. they usually wind up and lock on hard, unexpectedly.

    the sprocket usually needs a bigger hole, and the outer rubber on the rag joint needs to be a bit thinner, but otherwise, they have worked for me...
     
  6. Greg58

    Greg58 Member

    I read that and was hoping he had not got to the point of putting the arm back on. Surely he didn't try to ride it without the brake arm. Frankfort if you do get a group of friends around with video cameras and yell " hey y'all watch this " you might win ten thousand dollars from funny videos to help with medical bills!
     
    Frankfort MB's likes this.
  7. bakaneko

    bakaneko Active Member

    tbh, i think the whole rear wheel locking up danger is blown out of proportion; while changing my rear sprocket (36 to 44) and aligning the wheel again, I had the wheel lock up a number of times at 20 mph+ and there is no danger other than a bit of a fast slow down. The reason it is harder for me to get a proper alignment is that I have an imperfect tilt to my engine at about 5-10 degrees causing the chain to slip from both the drive sprocket and rear sprocket, which I fix with two chain tensioners.

    the real danger is the front wheel. if that locks up you are f$@%ed hard. your bike will flip and you might hit your head on the pavement depending on how tall you are. either way you are guarentee to crash.

    frankfort mb, im sure u get it to work with the coaster brake or if not you can maybe fabricate a rim brake mount and get a rim brake.
     
  8. Frankfort MB's

    Frankfort MB's Well-Known Member

    I'll end up doing something like this. I've heard a lot of good things from the CB-e110 coaster for a MB...

    Yeah I've tried that on another bike... Not good, on this wheel i could just spin the axle in my hand and it would just thread the axle out of the clutch for the brake. I was hitting the dust shield and with all that pressure it would just lock up the left side bearings. I'll figure it out thanks
     
  9. HeadSmess

    HeadSmess Well-Known Member

    man, now i want to try sticking a coaster brake in the front forks!

    run a length of chain up the top, with some type of lever and pull back spring. sure it would work! just like rod brakes but sort of more DIY :)


    pffft, who cares about practicality?

    actually...waterproof, virtually no maintenance, maybe its not so stupid...
     
  10. Frankfort MB's

    Frankfort MB's Well-Known Member

    Sounds simple;)
     
  11. GhettoBike

    GhettoBike Member

    dont go 40 mph on a $5 brake system
    those things break ankles
    we have brake systems
    Let us know if you need any parts
    www.ghettobike.com
     
  12. Frankfort MB's

    Frankfort MB's Well-Known Member

    I would trust them if you build them right, the only problem I've ever had with a coaster brakes was something that was my fault.... I didn't use high temp grease and all the grease burnt up, this caused my bearings to blow out with my axle
     
  13. Frankfort MB's

    Frankfort MB's Well-Known Member

    Got wheel on bike and my chain tensioner fell into my spokes, luckily (better than not) my wheel locked up when it did so it didn't bend anything
     

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  14. butre

    butre Well-Known Member

    I've done it, makes a great setup.
     
  15. Frankfort MB's

    Frankfort MB's Well-Known Member

    I'll have to remember that:)
     
  16. 45u

    45u Active Member

    If the brake anchor was not on this could make the wheel lock up.
     
  17. Frankfort MB's

    Frankfort MB's Well-Known Member

    The wheel was never mounted, the axle itself would not move. I got it fixed now though
     
  18. 45u

    45u Active Member

    What was wrong axel adjusted to tight?
     
  19. Frankfort MB's

    Frankfort MB's Well-Known Member

    The sprocket was sandwiched onto the dust cover so tight it locked up that side of the bearings....
     
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