Oval vs round chain rings?

[ishaw]

I'm stepping into unknown territory for me with a 1x11 build. Ive scored an xt 1x11 drive train, the cranks have an oval narrow wide ring. Not since the days of biopace and oval-tech have i used an oval ring. What are the benefits of this modern take on the retro standard?

Trying to decide whether to give it a go, or buy a round ring.

 

[rwm1962]

I find them marginally better generally but especially on slow, uphill rides over rough ground.

 

[mattr]

If it's already there, use it, Doesn't cost you anything to try does it......

I prefer them TBH. Especially on 1x drivelines where i occasionally have to grind it out.......

 

[velofrog]

Re:

Yep, been running absolute black ovals for years on my mtbs, they work brilliantly, especially on climbs, they really smooth out the downward pedal/power stroke

 

[tintin40]

Hate oval. Especially on low speed.

 

[ishaw]

Re:

I'll give oval a try, it is already on the cranks so as pointed out, costs nothing. It is a decent one with little use, bought the whole drive train which looks to have very low mileage so should play nicely.

 

[mattr]

Hate oval. Especially on low speed.

Which one, there's a massive variation in concepts (and execution).

The Osymetric ones made me feel seasick......

 

[tintin40]

The Osymetric ones made me feel seasick......

don't know which ovals I used. They were already fitted. Took them off after using. I'm surprised they haven't tried to sell us oval wheels. Round for movement is best.

 

[mattr]

Dunno about you, but my legs go up and down......

 

[jimo746]

Re:

Try it as it's already fitted, assuming its fitted the correct way around
It's not Biopace, so dont assume it'll be the same, it's not.
It might feel "weird" for the first mile or so, but you'll soon adjust.
I use round and oval, honestly cant tell any difference in use tbh.