ERV3 is rated is weaker then many other chains and costs the most. the rk gxw and ek mvxz are much stronger since the erv3 is only rated at 750cc where the other two are rated at 1000cc. :laugh
Tensile strength differences between the three chains is not enough to make a difference on a 600, even one making 20hp more than stock (and good luck with that, average person)... nor is the 3 oz weight savings you will get with the ERV3. I love when people use only tensile strength as a primary metric for chain performance. Why is it that ERV3's seem to stretch less than corresponding EK/RK chains? Take the advice or not... frankly I could give a rat's ass...
Tensile strength is only part of the equation. Wear life indicator is the other. A 600cc won't break a did erv3 and you won't notice the difference in weight, but you will notice the difference in cost, that is for sure.
I've seen no data showing one "stretches" faster then another. One is hyped up as being "better quality", but you'll be hard pressed to find any data to back it up other then the fact rossi uses the erv, but he has been on the ERV4 for several years now according to the DID reps. It's a chain that is a bit less weight and the cost of strength and wear life, however it's not like it's 20% weaker or will last that much less time. It's a minimal difference, but the price is a hefty difference.
EK mvxz weighs a bit more then the rk gxw, but it's a bit stronger with a better wear life. The friction is a lot less then the rk though is one reason I like it over the rk a hair, but that is just a hair.
What street guys care more about is the fact that the ek mvxz has silver inner links and the rk has gold inner and outer links.
All three are badass chains though and you can't go wrong with any of them.
Maxxx: LOL at the krouse "products". Still wondering if he'll ever release what % of titanium his "titanium" products are.
either.. based on the same price point (as both make a number of different grade chains), both are good chains.
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