Two-by is back with Vyro’s Continuous Shifting
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Two-by is back with Vyro’s Continuous Shifting

June 3, 2016

Vyro is not a company you’ve likely heard of – they’re a recent start-up from Austria – but their debut product certainly looks pretty interesting – meet the AmEn1:

Vyro-AmEn1_2x-two-speed-self-shifting-crankset_gearbox-alternative_11_crank-on-the-trail-600x400

It’s a crankset with a difference. There’s a (more or less conventional) inner ring, and the outer ring is split into 4. Each one pivots inwards. So you get perfect chainline in your inner ring. If you want to go into the big ring, each segment simply folds inwards, picking up the chain and carrying on with the same chainline. It’s mad-clever, but to get a better idea watch the video here:

You shift using an inner ISCG mounted collar which (via some mysterious mechanism) interacts with the outer ring and makes it fold inwards. It looks mechanical, though.

AmEn1-komplett-AmEn1-all-parts

Claimed advantages?

Well, there’s the ‘one chainline’ one, for a start. Vyro say you can shift under full load, there’s less chain and tooth wear as there’s less torsional stress on the chain and rings, and instantaneous pickup. Vyro-AmEn1_2x-two-speed-self-shifting-crankset_gearbox-alternative_10_Gregor-volcanic-sand-riding-600x400Looks pretty interesting! The initial product is, it seems, something of an XC affair, with a maximum rider weight of 90kg, but there are trail, DH and road cranksets in the works. Prices as they stand (with an ISCG mounted front ‘mech’ collar) are €395 for the lot, in a variety of colours.

We’re hopefully going to be getting a crankset in to review – we’re all massively intrigued. So watch this space!

AmEn1-schwarz-hinten
Here’s the back for the curious

For more information, check out their website here.

 

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Barney Marsh takes the word ‘career’ literally, veering wildly across the road of his life, as thoroughly in control as a goldfish on the dashboard of a motorhome. He’s been, with varying degrees of success, a scientist, teacher, shop assistant, binman and, for one memorable day, a hospital laundry worker. These days, he’s a dad, husband, guitarist, and writer, also with varying degrees of success. He sometimes takes photographs. Some of them are acceptable. Occasionally he rides bikes to cast the rest of his life into sharp relief. Or just to ride through puddles. Sometimes he writes about them. Bikes, not puddles. He is a writer of rongs, a stealer of souls and a polisher of turds. He isn’t nearly as clever or as funny as he thinks he is.

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12 thoughts on “Two-by is back with Vyro’s Continuous Shifting”

  2. It’s definitely clever, but is it wise? There seems to be a lot of moving/pivoting bits that could clog up with mud and grit.

  3. Browning transmission all over again? (ok, not exactly the same and there is a lot more cash sloshing around on the market now for this sort of stuff)

  4. It does look cool It really does BUT my first thought was cake it mud and grind the hell out of it for three hours then see how well its shifts

  5. Not ambitious enough. I have one of these – it’s got 16 speeds on one chainwheel. (Also got most of a Browning system too)

    [url=https://flic.kr/p/8bbL3H][img]https://c6.staticflickr.com/5/4034/4709761629_734e81bd17_b.jpg[/img][/url]

  9. I bet those chainrings are expensive. And imagine the wear on the pickup point when shifting from small to big “under full load” with all the torque on one tooth! Mud! indeed.

  12. Ignoring all the potential mud issues for a moment, how heavy is it? Looks to me light it’ll weigh a significant amount more than a standard 2 ring & mech set-up.

    And is the torsional loads on a chain/chainring really that much of an issue?

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