There’s a new name in the oval chainring market: Absoluteblack. The company has just launched a range of road bike oval chainrings, and we had a first look when founder Marcin Golec popped down to the road.cc office the other day to show us the new products.
The company has been making oval chainrings for several years now. If you dabble in mountain biking you might very well have come across the name. Now the company has launched a range of road oval chainrings.
Oval chainrings have become increasingly popular in the road market for a couple of years, and there are several well-known brands specialising in non-round rings. We probably don't need to mention them (Rotor). It does seem road cyclists are more open to trying new products these days, especially if they might increase their efficiency, power output or speed on the road bike.
What sets Absoluteblack apart, Marcin tells us, is a desire to make oval chainrings more accessible to a broader segment of road cyclists. Other brands might focus on the needs of professionals and very serious amateur racers, but Absoluteblack feels the benefits of oval chainrings extend to regular cyclists, especially time-poor cyclists that don’t have the luxury of riding dozens of hours a week. They're also more competitively priced as well.
What are the benefits of oval rings and why might you want to change? Absoluteblack reckons its chainrings can help to improve cadence, provide smoother power delivery and reduce the level of effort required. Who doesn’t want to be able to pedal more smoothly?
“Many road riders have a tendency to ‘mash’ their pedals and need help to perfect their spin and smooth out power delivery,” says the company. “Absoluteblack’s Oval Road chainrings incorporate the optimum ovality, to work with human physiology, delivering a spin sensation that feels ‘rounder than round’. Climbing takes less effort and knee strain is reduced.”
The company has also worked to make installation of its oval rings easy. The rings only have one mounting position, because Absoluteblack has “optimised the timing position of the chainrings” for you, avoiding any confusion in installation and leaving you with the simple task of getting out on the road and enjoying their supposed benefits.
I imagine there are some sceptical people reading this article, and it won’t be long before somebody mentions Shimano’s doomed Biopace (if you’re too young, read this). For that reason, we’re going to get some in for a test and we’re going to see what they’re like. We’re very interested to see if they live up to the claims put forward for switching to oval.
The chainrings are designed in the UK and manufactured in the EU. They’re beautifully machined and the attention to detail extends to the shifting ramp, which sounds like it has been a labour of love to perfect. Shifting performance is claimed to be on a level with Shimano.
The company does a range of rings, with a Premium Race Rings costing £121 a pair, and a newer Winter Training range costs £97 for a pair.
This Premium Shimano 110/4 BCD chainring fits Dura-Ace 9000, Ultegra 6800 and 105- 5800 chainsets. A 34/36t chainring costs £39.95 while a 50/52t chainring costs £82. There’s also a 110/5 bcd range of rings as well.
This Aero SRAM Oval 1x Direct Mount chainring is a 50t and costs £105.
The Absoluteblack range of rings is available from www.velotechservices.co.uk and more info at http://absoluteblack.cc/
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12 comments
I'd buy some...
...if they turn out to be cheaper than replacement Dura Ace rings (I am NOT looking forward to the day they need to be changed!)
I run one of their direct mount rings on my enduro bike. They definitely smooth out the pedal stroke and help with climbing. I'm out of the saddle way less. I'm a believer.
I'd buy a set just for hanging on the wall...to stare at....
I thought oval/elliptical chain rings were to reduce the effective leverage required at the point human legs were at their weakest position, so reducing the stall near top dead centre
Any non-round ring will pull the chain a different distance per degree of rotation, dependent on the effective radius at the point in the rotation where the measurement takes place.
A 54 tooth chainring pulls the chain 1" for every 6.66° of rotation. No matter what shape it is. The 'dead spot' in the pedalling revolution is due to poor pedalling technique, not to the position of the cranks. Any advantage found from oval or eliptical chainrings is purely psychological. They won't help you pedal more smoothly.
BTW. Those rings appear to be eliptical rather than oval, although it's difficult to see clearly.
Well I think that this chainring will have to become part of my life! Hopefully for the benefits they can offer but also for the look of them.
The video is pretty dire... Who's he looking at? With some marketing, they might do OK
Nowt new about oval chainrings. They were resurrected back in the early nineties as Egg Rings and I used them on my mountain bike. Ovalised rings were around before WW2 ( I think ) and have been trapsed about on several occasions . So what's the fuss !
Same here. No real desire to buy a set, and certainly don't have the money to, but by gum they're rather pretty things.
I don't care whether they are oval round or square. I want them just for their looks.
"Doomed" is a bit strong for a design that lasted a decade, and an idea with which Rotor persist in their Q rings. But then I'm biased, as I ride my Eighties BioPace-equipped bike most weekends.