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Don't shoot me down.
Is a 32 tooth oval chain ring the same ratio as a 30 tooth, but with the claimed advantages of an oval ring?
Cheers
32t is 32t whether it's round or oval. Ok it will effectively be a 34 through the downstroke and a 30 through the upstroke (or thereabouts), but overall it's still a 32t.
Which side of the equator are you riding?
Only if you roll a trouser leg up to pedal.
The number of teeth on the front will tell you how much chain it pulls through in a full pedal revolution; it doesn't matter if that's a circle or an oval, it'll still move the same amount of chain.
Which in turn will cause the rear sprocket to turn by the same number of teeth (eg: 16T will rotate twice)
It's leverage that makes the difference because you are pulling that chain unequally to take advantage of where legs are strong or weak.
Cheers all
Depends on whether you're going forwards or backwards
I found out tonight that Chris Bell of Eggrings fame died last summer.
http://www.bikebiz.com/news/read/rip-chris-bell-inventor-of-eggrings/019966
This made me very sad.
I've had a couple of rides out on an AbsoluteBlack oval rings and I believe it's made a difference. I went from 30 round to 32 oval but the cassette got a bit bigger at the same time.
What I've noticed is that it feels like I can push harder. I imagine this is because the oval eases off for me at the weak part of the stroke so actually, I'm only pushing harder where I'm stronger, because I'm not hammer my legs on the weak part, I can do it for longer.
Not sure that makes sense, but bottom line is, I've very pleased with the AbsoluteBlack and I'm getting up stuff with less of a struggle than I did before.