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SOC16: absoluteBLACK Winter Line oval road chainrings crank down prices, plus new MTB oval-friendly chain guide

absoluteblack winter line CNC machined alloy oval 2x road bike chainrings
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absoluteblack winter line CNC machined alloy oval 2x road bike chainrings

In January, absoluteBLACK introduced their heavily machined Premium oval chainrings for 2x road setups. Those rings featured extensive milling to remove material from the outside face of the large ring, helping it save weight while also creating  a truss-like design to keep it stiff.

Now, they’re introducing the Winter Line, which brings down the cost and might prove the better option for anyone riding in dirty, wet conditions. They lose all of the external CNC work and have a smooth surface, but share the same tooth profiles, ovality and ramp-and-recess design on the back to keep them shifting well.

Shift past the break to see details, weights and pricing, plus their all-new ultralight chain guide for mountain bike 1x systems…

absoluteblack winter line CNC machined alloy oval 2x road bike chainrings

absoluteblack winter line CNC machined alloy oval 2x road bike chainrings

Six upshift ramps on the backside help lift the chain off the little ring and carry it up for smooth, strong shifts. Tooth profiles and varying heights help release the chain when you need to downshift.

absoluteblack winter line CNC machined alloy oval 2x road bike chainrings

The inner rings match the ovality of the larger rings, and they also lose the additional machining of the Premium rings.

absoluteblack winter line CNC machined alloy oval 2x road bike chainrings

For comparison, the 110/4 BCD premium chainring (shown below) comes in at 137g for the 52T, a savings of 31g on the big ring. But they cost $29 more. The inner ring’s weight difference are less drastic, with the 110/4 34T premium ring coming in at a claimed 31g versus 40g for the Winter Line version.

absoluteblack winter line CNC machined alloy oval 2x road bike chainrings

These bronze anodized chainrings showed off a possible limited color option, but the hint was that they’ll have a gold to match the new SRAM XX1 Eagle’s chain and cassette.

absoluteblack x 77designz lightweight oval-chainring compatible mountain bike chainguide

The new oval-compatible chain guide was a collaboration with 77designz, a German brand of lightweight mountain bike components. They already had several super light chain guides, but absoluteBLACK brought along additional CNC experience to create something that’s even sleeker…

absoluteblack x 77designz lightweight oval-chainring compatible mountain bike chainguide

…and oval compatible. It’s a single bolt design with a keyed assembly so the parts slot together only one way, making installation a no-brainer. This one was preproduction and didn’t have the markings, but production units will have etched indicators showing where to position the guide on each chainring size.

absoluteblack x 77designz lightweight oval-chainring compatible mountain bike chainguide

The bolt is accessed from the front, making adjustments easy if you change ring sizes. And you don’t need to loosen the bolt to flip the outer plate upward for removing the chainring/crankset.

absoluteblack x 77designz lightweight oval-chainring compatible mountain bike chainguide

The chain guide will be available soon, as will additional sizes of their road oval chainrings.

Absoluteblack.cc

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boner
boner
6 years ago

the outer piece on that chainguide looks like it break if part of your shoe got caught on it.

absoluteblack
6 years ago

@ boner. I would not worry about this. Cage is very robust. It’s made of special kind of polymer with long fibers that make it strong, With over a year of testing we did not encounter any breakage.

On the side note there is a small mistake in the article. Front part of the cage can be opened by hand. It’s a patent pending system which allows you to get access to the chain on the trail with no tools. It will not open itself also.

So assuming you would kick it by accident (which I can’t see really happening due to position of the chainguide) worst thing that could happen is you could open the cage partially – not break it. But such scenario has very low probability because cage is neatly positioned just above the chainring, where shoe will not be able to reach really.

patrick
patrick
6 years ago
Reply to  absoluteblack

Will there be a clamp on version of the chain guide?? I haven’t dropped a chain from your ring yet, but I sure wouldn’t mind putting a guide on my CX bike.

i
i
6 years ago

Get a bashguard/skid plate on there and I’ll buy 3. I don’t understand upper guide only guides. Who is riding in such a way that they need an upper guide but never bashing the ring on anything?

PFS
PFS
6 years ago
Reply to  i

with all the 1x systems these days I occasionally have chain drop issues on my 1x xc bike. I try not to bash the chainrings into anything on that bike, although it does occasionally happen.

M
M
6 years ago

Glad to see the 77 designs guys getting some US love. Had one of their original ISCG-05 guides for a year (ish) and loved it, then some US groups started stealing their designs 🙁

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