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I started working for a company assembling bikes and I get paid by the piece which is usually fine till I get to this one bike. The front brakes just never hold no mater how tight I get them. Is it just the chrome rim and I can leave them as is convince the store it's got to be bedded-in by the child that buys it? Cause I can't be taking sand paper to the rim or they'll be marked damaged.

ozone 500 marauder

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    Probably the situation could be improved significantly by replacing the brake pads with better quality ones. But if this is the typical kids bike with coaster brakes (back-pedal brakes) on the rear then the front calipers are more for show than function. The front cable will be frozen with rust anyway, within a year. – Daniel R Hicks Aug 22 '18 at 22:28
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    I'm impressed that you're checking your work like this. Sign of a good work ethic. Did you receive any training in your role? Is there anyone supervising/managing you ? Would be a good idea to cover your backside and ask "is this right? Can I do this better?" and get the question and answer documented. – Criggie Aug 23 '18 at 6:54
  • Daniel they don't really provide extra break pads. This style bike does have rear hand brakes of the freestyle variety. IE that stupid hub you run the cables through on the handle bar stem. – IRMacGuyver Aug 23 '18 at 11:48
  • Criggie I got a half day training on bikes before my trainer quit. My manager is a professional manager and never worked a day in his life. Good guy just doesn't know my job. I never understood that philosophy of management. Most of the knowledge I use is what I learned building and maintaining my own mountain bike over the last 25 years – IRMacGuyver Aug 23 '18 at 11:54
  • @DanielRHicks also the brakes shouldn't rust in the life of the bike, it's a kids size so they shouldn't be using it that long anyway, but they put vaseline or something like that at all of the cable sheath ends to keep water from getting in. – IRMacGuyver Aug 23 '18 at 13:00
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Welcome IRMacGuyver!

Looking at the photo, it appears you have the cable housing barrel adjuster attached at the lower point between the two arms (on the front caliper), with the cable clamp nut at the higher attachment point (back caliper). Except for images of Bropton brakes, I've never seen that arrangement.

Try reversing the connections so that the barrel adjuster is on the back caliper, with the housing coming from above. I believe you'll find that provides better braking power.

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    The brake is a single pivot. They work reliably if the arms are very short, but not on bikes like this. Dual pivot can be recognized from two pivots. The cable comes from below because it has been routed inside the steerer tube to allow bar spins. – ojs Aug 23 '18 at 3:33
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    These brakes are awful. Better pads may help a bit but the problems are in the design. – ojs Aug 23 '18 at 4:52
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    @Criggie How can the direction of the cable attachment have any influence on the resulting breaking power? I mean, as long as the movement of the cable itself is not hindered by this setup, the force that you can apply between the two levers should be exactly the same, no matter which arm is connected to cable/housing, no? – cmaster Aug 23 '18 at 8:25
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    @bret the brake has to be arranged this way to feed up through the post without kinking. – IRMacGuyver Aug 23 '18 at 11:57
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    OK this is called a Potts Mod and comes from BMX where they want to spin the bars. Often used with a "detangler" to cable to a rear brake, but a coaster brake would avoid that completely. – Criggie Aug 24 '18 at 1:47

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