jesus I need help on my coaster brakes from hell??
09-11-05, 12:35 AM
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jesus I need help on my coaster brakes from hell??
Well guys my son and I bought a new bike today to install an electric motor kit on it. It's a Beach Cruiser and has coster brakes on it and is a single speed. The problem we are having is when coasting a noise is coming from the hub....a bearing like noise it stops when you slightly pedel backwards or if you are pedeling forward but when coasting it's quite loud. Any suggestions or adjustments?? I was going to take it apart tomorrow and repack it with lots of grease. This one has us scratchin our heads so I'm hoping you can steer us in the right general area that might be causing the problem with this coaster brake noise.
Thanks!!!!!!!!!
Brandon and Dave
Thanks!!!!!!!!!
Brandon and Dave
09-11-05, 03:31 PM
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anyone have some ideas???? I just repacked the whole hub with bearing grease and put it all back together but still have the noise while coasting........HELP PLEASE! 
09-18-05, 07:16 PM
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First of all, if it is a brand new bike and you purchased it from a bike shop, return it and complain.
Next step,the problem could be coming from the large outer bearings that are usually on each side of the hub. Replace these bearings. On the coaster brake arm band side (which attaches to the frame with a clip with holes and a bolt and nut) there usually is a metal cover . This cover goes over the large bearing and the outside of the hub to protect it from dirt. If this cover is slightly bent or elliptical , the hub , while turning, could be rubbing against it. What brand coaster brake hub is this ? Some of the lower quality Taiwan or Chinese imitation Shimano brakes were very noisy right out of the box. Good luck !
Next step,the problem could be coming from the large outer bearings that are usually on each side of the hub. Replace these bearings. On the coaster brake arm band side (which attaches to the frame with a clip with holes and a bolt and nut) there usually is a metal cover . This cover goes over the large bearing and the outside of the hub to protect it from dirt. If this cover is slightly bent or elliptical , the hub , while turning, could be rubbing against it. What brand coaster brake hub is this ? Some of the lower quality Taiwan or Chinese imitation Shimano brakes were very noisy right out of the box. Good luck !
09-19-05, 08:32 AM
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09-19-05, 03:02 PM
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Sounds like you have one of those "Bendix" made in Mexico hubs-On coast it makes a whining sound-Under pressure it clicks and clanks-If so, the noise will not go away-Replaced factory wheel with another ,same thing happens-New hub has 800 miles on it and still makes noise-Not as bad but still noisy-
09-19-05, 09:40 PM
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I've seen a few coaster hubs with this problem lately.
What the issue seems to be is the metal brake pads inside the hub are rubbing on the knurls of the brake clutch. There is a spring inside the hub that pushes the clutch away from the brake pads, and when this spring is bent or messed up, the clutch rubs on the inside surface of the pads making the whirring noise.
I have replaced springs and "custom bent" them in a few attempts to solve this problem, but no success so far. This noise does not seem to affect the operation of the hub.
What the issue seems to be is the metal brake pads inside the hub are rubbing on the knurls of the brake clutch. There is a spring inside the hub that pushes the clutch away from the brake pads, and when this spring is bent or messed up, the clutch rubs on the inside surface of the pads making the whirring noise.
I have replaced springs and "custom bent" them in a few attempts to solve this problem, but no success so far. This noise does not seem to affect the operation of the hub.
