- Oval single ring. Real world experiences?
I’ve used one for years and I think they’re a little bit better, in that for me, it means I’m less likely to spin out on techy climbs and I’m less likely to stall in them ‘oh shoot I’m in the wrong gear’ moments. As for being able to pull a bigger chainring / higher gear / be faster up climbs / more attractive to the opposite sex claims made by the marketing peoples, they’re mostly bullshit.Posted 2 months ago
So in summary, they’re a little bit better for the same price.GolfChickMember
I have oval on my hardtail simply because at the time it was the cheapest chainring available. I have a normal chainring on my full suss and apart from an initial feeling of imbalance I can’t tell the difference at all. Having said that the other week I put it on with the notch out of line and it was bloomin hard work up the hills enough that I knew I’d put it on wrong and it went back to normal so it must work to a certain degree in terms of making it slightly easier than it would be with the same teeth as the bigger portion of it.Posted 2 months agowhitestoneMember
I have them on my fat bike and HT. I’ll fit one to the FS when the current round chainring wears out.
I feel there’s a definite improvement when climbing but couldn’t quantify it, maybe a couple of percent at most and probably easily swamped by other variables. I get a much smoother power output, most noticeable on road climbs where you don’t get that rhythmic “thrum, thrum, thrum”, the sound from the tyres is much more even.
The difference is most pronounced on the fat bike – the other weekend when there was 15cm of snowfall overnight in the Dales I was able to just keep pedalling through it without that surge of power I’d get from a round chainring on each pedal stroke. Going uphill would still defeat me in the end though as would drifts but that was as much about pure strength (or lack of it).Posted 2 months agoNorthwindSubscriber
I put one on the fatbike and it was really noticable… Not so much as free power, or whatever, but sitting and spinning especially on long climbs it was obvious that there was less bouncing going on. And though I can’t feel the result, if I’m exerting the same amount of energy and not wasting any of it bouncing up and down, then it’s pretty much got to be going forwards.
That said, I’ve gone back to round ones on the normal bikes, mostly because of chain devices.Posted 2 months agogreyspokeMember
To me initially oval felt more like my legs could work like pistons, I didn’t need to bother so much to pedal smoothly. Which may be related to why some people have noted it helps with knee pain? Definitely helps with getting the pedal over the top on steep climbs where you would like a lower gear only you are already in first. Which happens to me quite a lot (I am 62).Posted 2 months agoCarbisSubscriber
Personally I found the absolute black one I used hurt my right knee and I found using it resulted in an uneven power delivery on steep technical climbs. They don’t work for me but do for others.
In terms of changes to a bike it is relatively cheap to try and you’ll get a good proportion of your money back if you do find it doesn’t work for you.Posted 2 months agosolariderSubscriber
I have tried to condition myself over (too) many years of riding (and mostly on the road) to spin circles. In this context it really helps to increase power output. Riding off road however is more of a staccato kind of riding style with short bursts and constant adjustment in technical sections to clear obstacles and get the power down at awkward points in the pedal stroke.
Having run 1 x oval on the road and definitely noticed a positive difference I tried it off road and really noticed a negative difference. Better when spinning circles (just riding along), but less predictable in the technical stuff. For some reason it really highlights any slowness in the pick up of your freewheel. I have never really been bothered between a few degrees of pick up here and there but with an oval ring you can more easily spin out and loose engagement at certain points of the pedal stroke. I am however running it off on a hardtail. To build on the comment above, maybe it works better on a full suspension bike where the rider is more isolated from every slight bump in the trail.
On balance it works for me on the road, but I prefer round off road.Posted 2 months ago
You must be logged in to reply to this topic.