Adding resistance to rollers?

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05-27-15, 05:15 AM

#26

gsteinb

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There's also something like this

Amazon.com : Minoura Optional Trainer Mag Unit (Dial Type), Black : Sports & Outdoors

I wonder if it would fit

https://tandemgeek.wordpress.com/201...-some-farkles/

05-27-15, 05:52 AM

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beatlebee

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Quote:

Originally Posted by gsteinb

so if I take a magnet and it sticks to the drum this would work? I've seriously hit my head a lot

You don't put it on the drum, rather on the frame very close to the drum. The closer it is, the more resistance. In practice, I have mine a few mm away.

Here is a pic:

Ideally, I'd have more of the magnet over the surface of the drum as the magnetic field interacting with the al produces the resistance. But as I have it, it is plenty for pretty much all intervals except all out sprints.

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IMG_0189.jpg (95.4 KB, 146 views)

05-27-15, 12:16 PM

#28

gsteinb

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that's awesome. thanks

05-27-15, 01:21 PM

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Dee Tee

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Quote:

Originally Posted by robabeatle

For about $20, you can buy a rare earth magnet on Amazon and stick it on your frame right near the front drum, very close but not touching (assuming its aluminum). I do this with my old Krietlers and it is plenty of resistance now. Here is the one I use:

Applied Magnets ® 2" X 1" x 1" Super Strong Rare Earth Neodymium Block Magnet: Lift Magnets: Amazon.com: Industrial & Scientific

BINGO - This has worked well for me too. I put 4 rare earth magnets about 1/2" from my rear aluminum Travel Trac roller drum and presto-More resistance than I can handle!

06-03-15, 09:19 AM

#30

gsteinb

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so if the roller is aluminum (and in the case of the kurt rollers) the frame is also aluminum, will a rare earth magnet still stick to anything and provide resistance?

06-03-15, 09:44 AM

#31

greenlight149

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Quote:

Originally Posted by gsteinb

so if the roller is aluminum (and in the case of the kurt rollers) the frame is also aluminum, will a rare earth magnet still stick to anything and provide resistance?

As long as the magnets are close enough to the drums there will be resistance.

06-03-15, 10:01 AM

#32

woodcraft

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https://www.youtube.com/watch?v=TGMh7y2fEOE

Variations on this theme have been done using glue, steel cross-bar, clamps, etc.

Figuring out how/why it works adds resistance in the brain as well...

06-03-15, 10:52 AM

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popeye

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Quote:

Originally Posted by gsteinb

so if the roller is aluminum (and in the case of the kurt rollers) the frame is also aluminum, will a rare earth magnet still stick to anything and provide resistance?

Unobtainum magnets work for this.

06-03-15, 01:14 PM

#34

beatlebee

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Quote:

Originally Posted by gsteinb

so if the roller is aluminum (and in the case of the kurt rollers) the frame is also aluminum, will a rare earth magnet still stick to anything and provide resistance?

The magnet will not stick to Al so you might have to glue it on the frame or find a work around. Someone on here fashioned a wooden crossbar that had several magnets glued to it that he then wedged into the frame such that the magnets were all very close to the rollers. That is too much work for me; I'd just glue it.

06-15-15, 07:13 PM

#35

gsteinb

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magnet tool holder zip tied to a piece of wood. Looks like its gives me about 50 watts.

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07-20-20, 09:02 AM

#36

himespau

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Quote:

Originally Posted by gsteinb

Attachment 458469

magnet tool holder zip tied to a piece of wood. Looks like its gives me about 50 watts.

Sorry for the zombie re-resurrection, but did this work long term? Could you adjust resistance by adding more magnets or sliding this closer or further away from the roller? I need some more resistance and this looks a lot cheaper than trying to add a resistance unit that may not work with my brand. As much as I'd love to be able to add the smart unit from the e-motion rollers, I'm pretty confident that's not going to work (and am not willing to drop $400 just to find out).