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Old September 6th, 2014, 08:59 PM   #1
psych0hans
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Why would a MTB mono shock be so heavily sprung?

I was looking for mono shocks to install on my motorcycle trailer projects, when I came across this. How can this be?

Description:

Suit for electric scooters and bikes.
Bumper Spring design Shock Absorber.
Made of strong metal material.
Please make sure that the spring nut has been against the spring before riding.

Specifications:
Product Name: Shock Absorber
Material: Metal
Color: Silver and Black
Suspension: 1500LBs/ in
Screw Dia.: 24mm/ 0.94"
Size(approx.): 170 x 45mm/ 6.7" x 1.77" (L*D)
Weight: 468g
Note: Shock Absorber, Not contents the screws or other accessories.

Package Contents:
1 x Shock Absorber
@Alex can you please move this thread to general motorcycling discussions? Thank you
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Old September 7th, 2014, 10:00 PM   #2
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Old September 8th, 2014, 04:18 AM   #3
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If you think about the lengths of the links in rear suspension, the amount of movement of the wheel is X times larger than the distance that the shock compresses, effectively lowering that ratio for the whole linkage system. It's really not specific to bicycles and is just one giant linkage analysis problem from a mechanical design textbook.

That said, those shocks look like junk that come on Walmart bikes. They're weird sizes.
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Old September 8th, 2014, 02:00 PM   #4
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Junk shock, that's why. Have you ever tried to compress the rear suspension on a cheap MTB? It doesn't even move, a rigid might actually be a smoother ride.
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Old September 8th, 2014, 02:06 PM   #5
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No, usually the back end on a junk bike moves, but has no damping. So every time it compresses, it rebounds and compresses and rebounds and compresses, etc. It just pogo's all the time.

Shocks get pricey because of damping circuits and adjustability and serviceability.
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Old September 8th, 2014, 02:09 PM   #6
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Quote:
Originally Posted by choneofakind View Post
No, usually the back end on a junk bike moves, but has no damping. So every time it compresses, it rebounds and compresses and rebounds and compresses, etc. It just pogo's all the time.

Shocks get pricey because of damping circuits and adjustability and serviceability.
Idk man, ever bike we stocked when I used to work at Kmart didn't even move and weighed twice as much as my MTB.

I personally will only run air on my MTBs, but I also don't downhill.
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Old September 8th, 2014, 02:12 PM   #7
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i think they added an extra 0...
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Old September 8th, 2014, 02:24 PM   #8
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i think they added an extra 0...
Could be oversprung for a Fat american?
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Old September 8th, 2014, 07:43 PM   #9
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Ahh well, it was cheap enough so I ordered a pair. Will find out when I get it.
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