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Culprit adds more teasers for cable-hiding aero stem

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culprit-aero-stem-with-hidden-cable-routing-teaser-2

Coming early next year, Culprit’s aero stem is just one part of a system designed to clean up the front end of your bike and offer improved aerodynamics. They’re not letting the rest of the cat out of the bag until January, but they do seem ready to share more on this stem.

Intended to hide cables and wires for any set up and direct them out the back of the stem, it seems most useful for aero bikes that run those cables into the top of the top tube. The new images show just how visual and drag-inducing clutter they remove, and it works equally well for full mechanical systems, too…

culprit-aero-stem-with-hidden-cable-routing-teaser-1

Culprit says any brand’s junction box, including the SRAM Blip Box for their remote wireless shifter buttons (UPDATE: Only Di2/EPS junction boxes will fit), will fit under the hood. More importantly, you’ll still have on-the-fly access to it, but they’re not saying how that’ll work just yet.

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Interested? Check their website (wait for the pop up to appear) and hop on their mailing list. Check out standalone images of the stem here.

CulpritBicycles.com

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Nash
Nash
8 years ago

Why does it look like it was machined with a hack saw and a course metal file?

Joshua Colp
Joshua Colp
8 years ago
Reply to  Nash

It’s a 3d printed sample at the moment still. Cover is not structral so too thin to really sand down rp sample

David Gray
David Gray
8 years ago

Hopefully the final product looks much better than the current prototype. Looks quite awful.

Ripnshread
Ripnshread
8 years ago

So it’s a non-structural air foil? You know what I’m getting at.

Joshua Colp
Joshua Colp
8 years ago
Reply to  Ripnshread

Correct, it has purpose. Alot going on inside the stem. But the stem base and bar bore clamps are separate. This fits on after and helps hold cables, di2, etc inside and improve airlfow.

bobmarley
bobmarley
8 years ago

Josh these stems seem to favor the frames that have top-tube entry cables. Does it work for traditional frames as well? what about the garmin? is this stem supposed to tuck in behind a garmin?
Not trying to poke holes in this product. think its great way to save a few watts on my existing ride

Joshua Colp
Joshua Colp
8 years ago
Reply to  bobmarley

Yes, will get pics of a standard cable exit option. in January more will be revealed with some very unique features. There is a custom garmin attachment under design.

mudrock
mudrock
8 years ago

Only problem I see is the tighter radius of the cables creating more drag. It would also save the cables in the event of a crash if the top cover is slotted at the back, on either side of the cable opening. Otherwise the cables, stem and perhaps frame at the cable entry will be stressed when the front wheel is turned around.

PFS
PFS
8 years ago
Reply to  mudrock

Looks like you’ll need to choose between an infinitesimally small air drag reduction or cable drag. I personally like my bike to function correctly but I also dont ride my bike in a wetsuit. Perhaps this was designed primarily around Di2? Or even better, wireless systems…

Compulsive Customer
Compulsive Customer
8 years ago

Please bikerumor stop publishing those teasers. Its simply killing me. Again, I’ll spend every evening looking at the website to confirm product launch while camping in front of my local bike store, waiting in line, to get this unbelievably essential product that will bring more marginal gain.

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