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Old 02-20-05, 10:56 AM   #1
genericbikedude
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drum drakes or v brakes?

I'm getting ready to order parts for a bike that'll use a nexus 8speed hub, and I have the choice of using a drum brake (which comes with the hub) or taking the drum off and using a vbrake. How much do drub brakes weigh? What is their braking power compared to vbrakes? Do they lock the wheel like coaster brakes? Is the pull compatible with vbrake levers, or do they pull like calpiper/canti brakes?

I searched for drum brake, but found nothing to answer my question.

Thanks--
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Old 02-20-05, 01:00 PM   #2
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You may want to direct your question to the nice folks over in the tandem section. Many tandems use drum brakes in addition to rim brakes.
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Old 02-20-05, 02:30 PM   #3
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Quote:
Originally Posted by The Fixer
You may want to direct your question to the nice folks over in the tandem section. Many tandems use drum brakes in addition to rim brakes.
I think thats a bit different, though, the drum brakes on tandems just sort of drag a bit...they put them on so they dont hit 80 mph on alpine decents and overheat their rims. when they hit the brakes at the bottom.

I'm not sure about a drum as a primary stopper, however, old school MTBers used the Sturmey-archer drums when they were coonverting their cruisers.
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Old 02-20-05, 04:41 PM   #4
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Is this a drum or a roller brake? The drum will be quite a bit heavier, but they work well and look cool. And most tandemers use them as a drag brake to modulate descent, with the cable run off of a friction bar end shifter. That is more abuse than you on a single would ever put it too.
I think you have aroller style brake on the Nexus tho, a rotating plate indented with a series of ball tracks, as you pull in the lever and rotate the plate the balls run to the shallow end of theri groove forcing the friction and brake surfaces into each other and the rotating wheel energises this further, Strong brake, a bit heavier than V brake. Both of these styles will last a lot longer than the pads on a vbrake.
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Old 02-20-05, 05:05 PM   #5
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The Nexus roller brake is about a pound heavier than rim brakes. The stopping power is sufficient to lock a wheel. Theoretically, they can experience brake fade, although I have not seen this personally. The required pull is much heavier than that of a rim brake.

My bike has them front and rear. The low maintenance, absence of dirty brake dust, and abiility to work well in the wet easily trump the disadvantages for me.

Paul
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Old 02-20-05, 05:09 PM   #6
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If you Google the roller brake, you should find that the only concern is if you are really heavy, or plan to abuse it. Otherwise, they're a great brake, and look cool too. I plan on using one on a custom chopper bike with an IPS crankset and a 50cc motor tucked into the frame. You heard it here first, folks.
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Old 02-21-05, 03:27 AM   #7
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Less bike than a V but unaffected by rain.
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