We done the shiftin...
 

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[Closed] We done the shifting crankset?

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Quite clever really...

http://www.bikerumor.com/2016/03/02/first-look-vyro-amen1-a-shifting-crankset-alternative-to-gearboxes/

 
Posted : 03/03/2016 9:33 am
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I saw that a few days ago when I was obsessing over gearboxes. It's clever but the bits that move would soon be covered in gloop chucked up by the front wheel 😕

 
Posted : 03/03/2016 9:50 am
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Nice idea, however I don't think it'll be something that's economical to have as an alternative to a front mech, regardless of potential advantages.

one thing I do like from that though is the adjustable crank arm inserts.

 
Posted : 03/03/2016 10:06 am
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Nice idea, however I don't think it'll be something that's economical to have as an alternative to a front mech, regardless of potential advantages.

This, front mechs work well enough, and cost <£20.

This is susceptible to being hit by rocks and costs????

Pinion gearbox (or similar), or Frame mounted rolhoffs are the way forward, even Honda's "mech in a box" makes more sense these days with big hollow carbon frames (a 10-42 might struggle to fit though!).

 
Posted : 03/03/2016 10:44 am
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Yes, would not want to mash it against a log.

 
Posted : 03/03/2016 10:45 am
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Suntour did this ages ago:

 
Posted : 03/03/2016 10:48 am
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Looks like a cynic-al project 🙂

 
Posted : 03/03/2016 10:50 am
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Hmm grit and crap getting into tight clearances in the actuation mechanism, cant see it being a long lasting device over here.

 
Posted : 03/03/2016 11:03 am
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You are still stuck by with all the dangly bits out the back so I don't really see what it achieves. I have a Rohloff which gives a wide gear range and no maintenance or dangly bits to break. That works well though it does add weight and a bit of drag. I think it would be even better if it could be mounted at the bottom bracket but as I understand it there would be torque issues if you tried that. They talk about combining it with a hub gear but you'd then need a chain tensioner which again takes away from the appeal.
I think the problem is that development began a long time before all these wide range cassettes began to appear which make a 1x set up more suitable for most riders.

 
Posted : 03/03/2016 11:06 am

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