If it's an Absolute Crap ring, it definitely needs to be going back to them. They're not worth your business. I bought an oval ring from them when they started business in like 2012 (it hasn't seen much use as you can see!) but with all the bullshit they've done/said/developed in the last years (graphene in lube and brake pads, 500$usd derailleur cages, etc.), they're on my "won't ever buy again" list.
ppssshhhThanks for sending a pic over. You don't mind me sharing with everybody, do you?
I've had Wolftooth, Garabaruk and Black Spire oval rings. Haven't really noticed a difference between them all. As I've mentioned before, for me, it's about smoothing the power delivery, meaning you don't break traction as often when bouncing up a steep climb. Hard to know if it really works or not, but as mentioned elsewhere, even if it's a placebo effect, I'll take it. FWIW, I've been really surprised at the longevity of the Garbaruk ring, I've had it two seasons and its barely worn (unfortunately, only 75-80 rides between the two seasons though due to various injuries...)
I put ovals on one of my road bikes long ago, decided that they sucked. One's legs need to tense and relax to keep going, and ovals worked against it and I was uncomfortable.
BioPace is what I was using.
I figured. Absolute Black tries to explain the difference on their site. It makes at least some sense and helps explain why biopace sucked so much, but still smells a little snake-oily when it comes to the awesomeness of modern oval rings. (I haven't tried the modern versions but know some folks who like them.)
I figured. Absolute Black tries to explain the difference on their site. It makes at least some sense and helps explain why biopace sucked so much, but still smells a little snake-oily when it comes to the awesomeness of modern oval rings. (I haven't tried the modern versions but know some folks who like them.)
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"Biopace was actually, technically speaking, not an Oval shaped ring. But the biggest difference is in the timing of the maximum radius of said "oval". Biopace align maximum radius of the ring with the crank arm. So when your legs are vertical you experience maximum effort and when your legs are horizontal on crank - minimum effort. This timing is completely incorrect to what modern science know by now. Modern Oval chainrings like absoluteblack have different shape to Biopace, but most importantly different timing. Countless studies show that human can produce most power when his legs are on the crank just below horizontal (crank arm at 4 o'clock) and can't produce power at all when crank is vertical (6 o'clock). So it makes a lot of sense to use this knowledge and locate biggest part of the oval where you can push more and reduce the effort where you can't produce power at all. This is how modern oval rings work."
behind their product. Knowing fine well the vast majority of cycle consumers to be gullible idiots who'd rather spend MOAR money than actually put any effort into controlling their own pedalling forces.Nah it makes sense to reduce the gear ratio at the part of the revolution you have the least power to get the most consistent torque output. E-bikes with actual smart controls could take the vaguely sinusodal torque output of a peddler and make it flat, I doubt they do though.Talking about common sense. On a modern FS mtb used for riding technical uneven inconsistent terrain. Wouldn't you think a round chainring would offer far more consistency and control?
it really doesn't. Not for mountainbiking on the terrain I described anyway.
all decent mid mounted Emtb motors have a freewheel at the spider and no sensor monitoring what position the crank arms are at.
when do you think I started riding mountainbikes?
ridden plenty of them and agree completely. But I was talking about folk in the 80s who just didn't know any better/different
I just looked up when those things came out. I definitely wasn't riding mtbs in the 80s. Didn't realize they were around for that long. The owner of a shop I worked at in college handed me some rings and said 'here try these'. I took them back off that night.
they cause a very un o-chain like effect climbing up rocks with clipless pedals
ALLMOST EVERY RIDER WHO HAD BIOPACE BITD WHEN USING IT THOUGHT IT FELT ABSOLUTELY FINE
And this would make sense if both of your feet were in the same position.
thanks!
guilty. I'm a mountain biker, and I don't mind going up, over, or around, or down. don't even really care about the order either!
Even my pernicious case of scabies?
Me too. We took them off right away, the roadie contempt at the shop was truly worth not running them. (Not that we gave a shit what roadies thought, but...those fuckers knew how to put down consistent power)
I figured. Absolute Black tries to explain the difference on their site. It makes at least some sense and helps explain why biopace sucked so much, but still smells a little snake-oily when it comes to the awesomeness of modern oval rings. (I haven't tried the modern versions but know some folks who like them.)
404: Page not found | absoluteBLACK
Ooops! The page you're looking for does not exist Either you have a typo in the address or it has been removed. Don't worry, return to homepage and start from the scratch. Go to Homepage
"Biopace was actually, technically speaking, not an Oval shaped ring. But the biggest difference is in the timing of the maximum radius of said "oval". Biopace align maximum radius of the ring with the crank arm. So when your legs are vertical you experience maximum effort and when your legs are horizontal on crank - minimum effort. This timing is completely incorrect to what modern science know by now. Modern Oval chainrings like absoluteblack have different shape to Biopace, but most importantly different timing. Countless studies show that human can produce most power when his legs are on the crank just below horizontal (crank arm at 4 o'clock) and can't produce power at all when crank is vertical (6 o'clock). So it makes a lot of sense to use this knowledge and locate biggest part of the oval where you can push more and reduce the effort where you can't produce power at all. This is how modern oval rings work."
