Bizkit031 Posted December 10, 2015 Posted December 10, 2015 Curious to know who is using oval rings on their mtb bikes and would you recommend them. I am in the process of converting to 1x11 and not sure whether to go round or try oval right out of the gate.
GrahamS2 Posted December 10, 2015 Posted December 10, 2015 Curious to know who is using oval rings on their mtb bikes and would you recommend them. I am in the process of converting to 1x11 and not sure whether to go round or try oval right out of the gate.They've been around on mtb for a few decades already. Shimano had the patent for a long time with their biopace design, back in the 90's. Worked pretty well back then, so they should work just as well now. I'd say go for it.
NotSoBigBen Posted December 10, 2015 Posted December 10, 2015 They've been around on mtb for a few decades already. Shimano had the patent for a long time with their biopace design, back in the 90's. Worked pretty well back then, so they should work just as well now. I'd say go for it. Just wondering if it did then why did they go away from them and back to the normal ones? I use the Rotor ones on one of my MTB's and on my TT bike .... I do feel a difference but can't scientifically say I'm faster or less fatigued.
GrahamS2 Posted December 10, 2015 Posted December 10, 2015 Just wondering if it did then why did they go away from them and back to the normal ones? I use the Rotor ones on one of my MTB's and on my TT bike .... I do feel a difference but can't scientifically say I'm faster or less fatigued.Most likely the patent lapsed so other manufacturers can now use the design, but that's just a guess. In theory if you have a proper pedal stroke they will make little difference.
raptor-22 Posted December 10, 2015 Posted December 10, 2015 Biopace was dropped because it was shyte shyter than a shyte thing. There are many designs all with better timing than Biopace. I've used rotor in the past. Felt less fatigued with their design but the rings are made cheese
rudi-h Posted December 10, 2015 Posted December 10, 2015 never seen it on MTB's, but i guess that on an MTB you'd want your chainring to ground clearance constant, otherwise you might knock a tree trunk or something if you have your foot in the wrong position...
PeterF Posted December 10, 2015 Posted December 10, 2015 never seen it on MTB's, but i guess that on an MTB you'd want your chainring to ground clearance constant, otherwise you might knock a tree trunk or something if you have your foot in the wrong position...When clearing an obstacle on a MTB your pedals should be in a horizontal position and the oval chain ring would also be at it narrowest, so will not be an issue.
Cas_1 Posted December 10, 2015 Posted December 10, 2015 Also planning to go 1 x10 with 32t oval so interesting comments. Will have to man up on some of the climbs but excited about it. Would have loved to go 1x11 but would required complete do over on my bike shifter included.
raptor-22 Posted December 10, 2015 Posted December 10, 2015 Read the gx1 review on bikerumor.com I think 1x10 is a waste of money for the hassle when gx1 is so good
Vetseun Posted December 10, 2015 Posted December 10, 2015 Ive got an absolute black 32t oval on my mtb. I cannot tell you how my climbing improved with it.
Mr X Posted December 10, 2015 Posted December 10, 2015 Definitely go oval, do not think twice about it.
Guest Posted December 10, 2015 Posted December 10, 2015 Ive got an absolute black 32t oval on my mtb. I cannot tell you how my climbing improved with it.Totally agree that my perception of climbing is much easier. I have Rotor rings because they came with the bike. The negative for the Rotor rings is that they are expensive.
andretraut Posted December 10, 2015 Posted December 10, 2015 https://community.bikehub.co.za/topic/151541-oval-chainrings/
Steven Knoetze (sk27) Posted December 10, 2015 Posted December 10, 2015 I am running an AB 32T oval NW.Best thing I ever did.In my case I was hoping for the reduced lactic acid build-up which is punted as one of the advantages, for me it has worked. I cramp really bad when doing anything over a 35km ride. This has improved dramatically.I have also noticed improved traction on technical climbs as well as helping to smooth out my pedal action.I see that there is a local manufacturer who is starting to make them now too so the price should be more favourable although the AB is a thing of beauty. ll the maching is top notch, IMO I would rather pay a little more and get the AB. BTW, I have Biopace rings on my road bike which is permanently mounted on my trainer in the garage. I have also ridden it on the road.They feel very different, the oval is more pronounced. Perhaps it is because the road is flatter, I am not sure but anybody commenting from a road perspective will not be an accurate comparison. Again IMO.
Jewbacca Posted December 10, 2015 Posted December 10, 2015 Ran an AB 33 on my SS which is now 1x10. To be honest I didn't notice a difference at all. However the thing cost me little more than a locally manufactured NW round chainring, so at the very least I have a rad piece of kit with supposed benefits at little to no extra cost than NOT having the supposed benefits. It retains the chain and works. I say go for it. I doubt I will buy another round Chainring now that the guys are making them locally.
Bizkit031 Posted December 10, 2015 Author Posted December 10, 2015 I am running an AB 32T oval NW.Best thing I ever did.In my case I was hoping for the reduced lactic acid build-up which is punted as one of the advantages, for me it has worked. I cramp really bad when doing anything over a 35km ride. This has improved dramatically.I have also noticed improved traction on technical climbs as well as helping to smooth out my pedal action.I see that there is a local manufacturer who is starting to make them now too so the price should be more favourable although the AB is a thing of beauty. ll the maching is top notch, IMO I would rather pay a little more and get the AB. BTW, I have Biopace rings on my road bike which is permanently mounted on my trainer in the garage. I have also ridden it on the road.They feel very different, the oval is more pronounced. Perhaps it is because the road is flatter, I am not sure but anybody commenting from a road perspective will not be an accurate comparison. Again IMO.From what I can see you don't need and spacers with the AB one.I have a SLX 2x crank and a XT 3x crank what would be the better option to ise out of the 2 or does it not matter?
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