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Last year, Chosen showed us their amazing frictionless hubs that spun freely in both directions…until pedaling forces were applied, at which point they snapped into gear immediately to propel you forward.

This year, the fanciful feats of engineering were external, the most interesting being a complete 12-speed upgrade kit that includes shifters, wide range cassette and rear hub. Or a new freehub design, anyway. The cassette is only slightly wider than a standard 11-speed one, so the flanges on the rear hub are inset about 1.5 to 2mm from a normal one (something easily accommodated for if used on a Boost hub). The reason for a special freehub body? Because it drops all the way down to a 9-tooth cog…

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The cassette uses a mixed of machined one-piece clusters and traditional pinned cogs.

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This one was a 9-40, which would provide a range of about 444%, which is a hair more than what you’d get by putting OneUp’s 44t X-Cog on an XX1 cassette.

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It’s designed to work with SRAM’s XX1 (or other 1×11) rear derailleur.

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To make it work, they created their own 12-speed shifters…

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…and rear hub. Held side by side with a standard 11-speed hub, the spoke flanges on this one were about 1.5mm closer together. That’s step one in making the cassette fit. Step two was the freehub body, which resembles an XD Driver body, but with a wider slotted section to support the different carriers used on the cassette. The smaller diameter threaded section allows the tiny 9-tooth cog on the end.

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For road, they’re working on carbon shells for their standard and straight pull designs.

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Both the hubs and 12-speed parts were too new (read: still in development) to have claimed weights or prices.

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Both versions use alloy sections inside the carbon to actually hold the spokes.

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Chosen-Hubs.com

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26 Comments
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FoolCyclist
FoolCyclist
6 years ago

Oh, man…. I am still only using 10 sp stuff. I am so far behind the times. But, in reality I miss my old bombproof 8 sp xt.

Glenn
Glenn
6 years ago

I’m loving 1X10, 30×36 is plenty low for the midwest.

This is a disaster. Small cog is moving the wrong direction. Narrow flange. Another freehub. Almost no range benefit. Proprietary everything.

All we do is complain around here, but (deleted), all this needs is a motor and a 13mm thru axle to make it the worst product concept ever.

shafty
shafty
6 years ago

Saw this coming. I’m numb to single cog increases. They’re just not shocking anymore. Can we just get a 1×15 system that matches the range of a 3×10/11 already?

Terry
Terry
6 years ago

I thought Super Record was going to be the first 12 speed. I guess Choosen beat them to it! Does anyone know when the Super Record 12sp will be released? I keep hearing it is soon!!!

John
John
6 years ago

Can we agree that gearing increases should move by prime numbers from here on out? There will be no 12 speed, only 13 or 17.

Stravarious
Stravarious
6 years ago

@Terry,
According to BR, Tiso had the first 12 speed with a Dec. 2012 article.
http://bikerumor.com/2012/12/12/tiso-12-speed-wireless-electronic-road-bike-drivetrain-unveiled/

liljoe
liljoe
6 years ago

Isn’t that just a Shimano Capreo freehub body? I am staring at one right now and see no differences.

Chris L.
Chris L.
6 years ago

I think we’re fast getting to the point where it’s going to make more sense to work on developing internal hubs with planetary gears rather than trying to squeeze in yet another cog or spread the rear hub out even more. An IGH would be less finicky to adjust, would put less strain on the chain and wouldn’t involve dangling the key component of the transmission off the bottom of the bike where it can easily be damaged. There are obviously some other major hurdles to over come but I think we’re soon getting to the point where tackling those will make more sense.

Frippolini
Frippolini
6 years ago

@ Chris L. +1

With everything going proprietary, why not 20 cogs or more?
Proprietary cogset, chain, derailleur, shifter, hub, spokes, rim, frame…

JoeP
JoeP
6 years ago

@Chris L. I’d go with a gear box like the Pinion…more and more its making better and better sense to me.

Chris Trunek
6 years ago

GEared hubs will always weight way too much for mtbs where handling is important. Now geared BBs…

Collin S
6 years ago

I’m all for Chris’s idea because that means more single speed compatible frames.

Plus only 12? I want a 1×20 setup. 🙂

Terry
Terry
6 years ago

@Stravarious: your memory rocks but me thinks that is a hoax.

Want more info on Super Record 12sp!! Bike Rumor? Campy? Ferris? Anybody? Speak up!!

The Boss
The Boss
6 years ago

7 speed 11 – 34 is where it’s at.

Birdman
Birdman
6 years ago
Terry
Terry
6 years ago

@Birdman: Your memory also rocks Birdy! Haven’t heard anything more from Phil on that one.

Antipodean_eleven
6 years ago

Ride…. more.

THAT GUY
THAT GUY
6 years ago

In order to ensure adequate wheel stiffness this will require my new proprietary Turbo-153 rear hubs.

riley martin
riley martin
6 years ago

while i can appreciate the attempt to take something to the next level…like a 12spd cassette and proprietary shifters….i also see this loaded with issues…….
a small time manufacturer of this will certainly have supply issues
and customer service issues, warranty issues, etc…they will never ever play in the same way as the other big players and will ultimately drift off into obscurity….

reminds me of Sampson’s attempt at a road group….that was such a hit, right!!!!!!!?

Lateral think
Lateral think
6 years ago

Why not 6-7-8 cogs on BOTH sides of the rear hub?

One side low range, the other high. Wider symmetrical spoke flanges, redundant chains, equal frame loads, no front derailleur and…

Dominic
Dominic
6 years ago

They had the Tiso kit on display at Interbike that year.
I refused to look at it on principle.
What i noticed looking at it finally, is that it is the clear progenitor of the FSA system, from the toggle style buttons, to the curves of the hoods, to the structure and cowling of the rear deraileur. IF i was somehow forced into choosing an electronic group, it would be the one i’d choose. I hope that never has to happen.

@benzo: if only this was Sparta
@riley martin: the Microshift version of the Sampson is still equipped on some bikes as original equipment. Having adjusted one or two, i kind of hate it.

Joe
Joe
6 years ago

Seriously? How about a quality, light, reliable 7 speed? To hell with it all, I quit.
Its less expensive to maintain my pickup.

matt
matt
6 years ago

Am I really that far behind? Still rocking a 1×9 with a chainguide. Oh well cheap and reliable works for me.

Smokestack
Smokestack
6 years ago

Not gonna say yay or nay to it, but it looks like a much more cost effective way of getting the silly ratio of SRAM’s goods without having to go silly in designing the cassette. Nice hybrid between Shimano splines and SRAM 10t compatibility. I do disagree with the 9t set up though. Too little chain wrap = too much pressure on the teeth and chain = too much premature wear.

Aesop
Aesop
6 years ago

See this video: 14spd

Cryogenii
Cryogenii
6 years ago

Are those re-branded SRAM shifters with an extra click?