JBK Posted March 15, 2021 Share **This is NOT a "to Oval or not to Oval" thread so please let's not let it get back to that age old debate** ***This is ALSO NOT a "what size oval compares to my round" thread so please let's avoid this also*** My question pertains more specifically to any experience with the different brands of Oval Chain Rings. I've done some research and it seems as though they differ quite significantly between suppliers, although its questionable as to whether the differentiation is noticeable, better or worse on the trails. Also interesting that reviewers have tested most, if not all, but there's no comparisons to be found anywhere. I normally ride a 34T Round and have not been unhappy with this. Most of my mates ride Oval although some tried and went back to Round. I had a loan crank whilst mine was being warrantied by the manufacturer and this had a 32T oval (CSIXX) chain ring. I rode it on two decent rides and could not feel any difference in the pedal stroke but I definitely felt less fatigued at the top of climbs that I've done enough times to know my standard. The smaller chainring is irrelevant as I was riding smaller sprocket to compensate and managing same / usual speed. Coming back to my Round, I'm pretty sure that the Oval definitely has some benefit for me. So I've decided that I'm going to try one out (34T) but I've been researching and found very different Ovality and Clocking : Ovality - the percentage above and below a normal round ring. So 10% ovality means that the oval diameter ranges from 95% to 105% of the equivalent Round Ring. This seems to range from 8% to 14%. The higher this is, the more non-round the chain ring. Clocking - "describes the angle between the crank arm and the largest diameter of the oval, measure anti-clockwise from the crank arm". This seems to range from 112.5 degrees to 115 degrees. This affects where on the pedal stroke the maximum / minimum will be. What I've found from different suppliers : Absolute Block (seems the most oval / aggressive) - Ovality between 10.2 & 14.4%, with timing of 110.5-116.3Wolf Tooth - Ovality 10% / clocking 112 degrees [one reviewers comment "Smoother feel than other oval rings we have tried"]Race Face - Ovality 10% / clocking 112.5 degreesCSIXX - Ovality 14% / clocking 115 degreesROTOR - Ovality 12.5% / no clocking infoOne Up - Ovality 12% / clocking 115 degrees [32T & Smaller]One Up - Ovality 10.5% / clocking 115 degrees [34T & 36T]HOPE - Ovality 12% / clocking 113 degrees [Added thanks Ossie NL]SRAM - Ovality 12% / no clocking info [Added] I'm personally thinking to stick with something less aggressive, like the Race Face but any thoughts from anyone who has more insight / experience with the different rings would be greatly appreciated. If you're going to comment, please substantiate your reasoning / thoughts. Please no "yo man you have to go with absolute black because they're a cool brand.!" Edited March 17, 2021 by JBK TheoG and Zebra 2 Link to comment Share on other sites More sharing options...
Dexter-morgan Posted March 15, 2021 Share Rapide? Not sure about the specs. Link to comment Share on other sites More sharing options...
christovdw Posted March 15, 2021 Share I've used Rapide, SRAM and absolute black in the past and to be honest, I couldn't feel the difference. As for quality, they all make great product. Would go for any one of them in future. Rapide is very well priced and their service is great Link to comment Share on other sites More sharing options...
DieselnDust Posted March 15, 2021 Share **This is NOT a "to Oval or not to Oval" thread so please let's not let it get back to that age old debate** ***This is ALSO NOT a "what size oval compares to my round" thread so please let's avoid this also*** My question pertains more specifically to any experience with the different brands of Oval Chain Rings. I've done some research and it seems as though they differ quite significantly between suppliers, although its questionable as to whether the differentiation is noticeable, better or worse on the trails. Also interesting that reviewers have tested most, if not all, but there's no comparisons to be found anywhere. I normally ride a 34T Round and have not been unhappy with this. Most of my mates ride Oval although some tried and went back to Round. I had a loan crank whilst mine was being warrantied by the manufacturer and this had a 32T oval (CSIXX) chain ring. I rode it on two decent rides and could not feel any difference in the pedal stroke but I definitely felt less fatigued at the top of climbs that I've done enough times to know my standard. The smaller chainring is irrelevant as I was riding smaller sprocket to compensate and managing same / usual speed. Coming back to my Round, I'm pretty sure that the Oval definitely has some benefit for me. So I've decided that I'm going to try one out (34T) but I've been researching and found very different Ovality and Clocking : Ovality - the percentage above and below a normal round ring. So 10% ovality means that the oval diameter ranges from 95% to 105% of the equivalent Round Ring. This seems to range from 8% to 14%. The higher this is, the more non-round the chain ring. Clocking - "describes the angle between the crank arm and the largest diameter of the oval, measure anti-clockwise from the crank arm". This seems to range from 112.5 degrees to 115 degrees. This affects where on the pedal stroke the maximum / minimum will be. What I've found from different suppliers : Absolute Block (seems the most oval / aggressive) - Ovality between 8% and 14% / no clocking infoWolf Tooth - Ovality 10% / clocking 112 degrees [one reviewers comment "Smoother feel than other oval rings we have tried"]Race Face - Ovality 10% / clocking 112.5 degreesCSIXX - Ovality 14% / clocking 115 degreesROTOR - Ovality 12.5% / no clocking infoOne Up - Ovality 12% / clocking 115 degrees I'm personally thinking to stick with something less aggressive, like the Race Face but any thoughts from anyone who has more insight / experience with the different rings would be greatly appreciated. If you're going to comment, please substantiate your reasoning / thoughts. Please no "yo man you have to go with absolute black because they're a cool brand.!" buy them all and find out what works for you. All the research suggests that the benefits are based on your physiological response. A paper study is not going to answer your question. Edited March 15, 2021 by DieselnDust Wayne pudding Mol and Just Jacques 2 Link to comment Share on other sites More sharing options...
Wayne pudding Mol Posted March 15, 2021 Share buy my garbaruk one - unused and shiny https://bikehub.co.za/classifieds/item/chainrings/462116/garbaruk-34t-oval Edited March 15, 2021 by Wayne pudding Mol TheoG 1 Link to comment Share on other sites More sharing options...
Ozzie NL Posted March 15, 2021 Share Did not see Hope on your list. Specs: 12% ovality and 113-degree clocking. Ridden Hope and CSIXX and do not feel the difference between the two Link to comment Share on other sites More sharing options...
Super Sywurm Posted March 15, 2021 Share I use a Rapide 32T and next buy would be a Rapide 32T or 34T. Link to comment Share on other sites More sharing options...
RobertWhitehead Posted March 15, 2021 Share I have experience with the following brands: CSIXXDekkasLyneRapideSome Chinese brand I bought once from AliExpress.What's my opinion on them? CSIXX - they are great.Dekkas is quite soft and can be installed incorrectly (they do not have any indicators) Lyne and Rapide are great and don't have any issuesChinese brand was indestructible I eventually gave it away because I could not use it up . So when it comes to the degrees and all of that, I am not too phased, I could not spot the difference Link to comment Share on other sites More sharing options...
Eddy Gordo Posted March 15, 2021 Share I have used sram, csixx, rotor q, some chinese brands. Only the rotor q had clocking. That was a 4 bolt ring though. I would prefer a ring to have clocking so that one can set it up to your stroke. Link to comment Share on other sites More sharing options...
TheoG Posted March 15, 2021 Share buy my garbaruk one - unused and shiny https://bikehub.co.za/classifieds/item/chainrings/462116/garbaruk-34t-oval I'm a huge fan of Garbaruk quality. If it was a 36t, I would have already taken it of your hands. The yellow will fit perfectly on my bikes color scheme. Link to comment Share on other sites More sharing options...
Maniax Posted March 15, 2021 Share im currently riding absolute blacks. absolutely love them. Link to comment Share on other sites More sharing options...
JBK Posted March 16, 2021 Share buy my garbaruk one - unused and shiny https://bikehub.co.za/classifieds/item/chainrings/462116/garbaruk-34t-oval Thanks Wayne Pudding Mol but I'm riding Race Face Crank with Cinch attachment detail so this won't fit. Link to comment Share on other sites More sharing options...
JBK Posted March 16, 2021 Share Did not see Hope on your list. Specs: 12% ovality and 113-degree clocking. Ridden Hope and CSIXX and do not feel the difference between the two Thanks for the inclusion of HOPE - note very similar to the CSIXX 12% : 14% and 113 degrees : 115 degrees so would expect these two to feel very similar. I'm wondering if one might feel a difference between the Wolf Tooth / Race Face Vs CsIXX / AB - the opposite extremes of the curve... Link to comment Share on other sites More sharing options...
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