That's an excellent source for this type of vehicle. For larger vehicles (still smaller than a typical car), coilover shock units from the rear suspensions of motorcycles are available from motorcycle salvage businesses.The little coil-over shocks are for mountain bikes (~$10.00 ea.)
2Pcs 1200LBS/in MTB Bicycle Mountain Bike Rear Suspension Spring Shock Absorber | eBay
Thanks for the infoThat's an excellent source for this type of vehicle. For larger vehicles (still smaller than a typical car), coilover shock units from the rear suspensions of motorcycles are available from motorcycle salvage businesses.
That eBay listing specifies a spring rate (stiffness) of 1200 pounds per inch - if it is really that high, it's no wonder that cheap mountain bike suspensions don't actually do anything, as they are far too stiff to be useful. Hopefully other spring rates are available. For sensible rates, Google search for "mountain bike spring rate" to get a calculating tool; the first one that I checked is from Fox (a major shock manufacturer for both motor vehicles and bikes) and was specifically for a rear shock, but would work for the fronts as well.
I suspect that you're right - the 1200 lb/in value is just nonsense.Thanks for the info
...but, I don't think that 1,200 lb. spring rate is correct
Chinese manufacturers seem to "flub" many specs so, why not spring rates too
The label on these springs have a company name
...but, they don't have any model number or part numbers
...& they don't have any kind of rating on the spring itself, either
The larger spring has much thicker wire and fewer free turns (four instead of five) of about the same coil diameter, so it should be much stiffer. You can test them for actual rate if you're curious, but it doesn't matter as long as they work.More info:
I can feel these "springs", that I have on the kart, "give" while riding
...& I can even get them to "give" a bit, by just applying some downward force, by hand (just leaning on it) just above each of the springs.
Also, I had just (1) of these same "springs" on the rear
...& I could feel it "give" a lot (~1/2", easily) just from me getting in the kart (making the rear "sag" a bit)
So, I (over-compensated) by trying a "bigger shock" 100-150mm Bicycle MTB Rear Suspension Spring Shock Absorber 500lbs-1500lbs | eBay
(Also, with no rate or part number on it)
It is (~1") longer but, it actually has a lower spring rate (supposedly 750 lbs.)
Now, the ride "feels" about the same
...it's just that the rear rides a little higher
...& stays more level, when I get in it
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