Back by popular demand, the general all-things Road forum!
Moderator: robbosmans
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53x12
- Posts: 3708
- Joined: Fri Sep 15, 2006 6:02 am
- Location: On the bike
by 53x12 on Fri May 16, 2014 9:45 pm
Are we going to have all those same talking heads make a new video telling us how great wireless SRAM is and how connected you now feel to your bike? Sheesh.
"Marginal gains are the only gains when all that's left to gain is in the margins."
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53x12
- Posts: 3708
- Joined: Fri Sep 15, 2006 6:02 am
- Location: On the bike
by 53x12 on Fri May 16, 2014 9:46 pm
DMF wrote:53x12 wrote:SRAM needs to design an EEG cap that goes on under your helmet that can pick up the electrical activity from your neurons/brain saying you want to shift gears. Have that broadcast by ANT+/BT 4.1 to the FD and RD. No need for shifters at that point. More aero and less weight. This is WW after all.
/sarc
This has already been done years ago by Parlee and the Toyota Prius group with sensors in the helmet and Di2. Seemed to work fine too. I'm just perplexed that nothing has evolved out of that since then... Seemed to be made pretty much out of stock electronics and far from complicated.
it's all on YouTube...
http://m.youtube.com/watch?v=lWzdWMapJ-c
Oh nice. Guess I am a few years behind.
"Marginal gains are the only gains when all that's left to gain is in the margins."
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MNX1024
- Posts: 299
- Joined: Thu Apr 28, 2011 1:21 am
by MNX1024 on Fri May 16, 2014 10:03 pm
If this is wireless, I think they should make their groupset 10 and 11 speed compatible. Don't think that should be too hard since they're cramming all the processing into each part. This would really make a lot of people very happy!
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solarider
- Posts: 578
- Joined: Tue Nov 23, 2010 9:08 pm
by solarider on Sat May 17, 2014 5:24 am
I understand that the shifters work like this (so not double tap):
Right Shift - Up the rear block
Left Shift - Down the rear block
Both together - Front Shift (either way from where you are)
Seems different rather than better, and how do you dump gears front and back at once?
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BeeBee30
- Posts: 1304
- Joined: Sun Dec 21, 2003 8:32 pm
- Location: WALES,UK
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Contact:
by BeeBee30 on Sat May 17, 2014 6:46 am
DMF wrote:53x12 wrote:SRAM needs to design an EEG cap that goes on under your helmet that can pick up the electrical activity from your neurons/brain saying you want to shift gears. Have that broadcast by ANT+/BT 4.1 to the FD and RD. No need for shifters at that point. More aero and less weight. This is WW after all.
/sarc
This has already been done years ago by Parlee and the Toyota Prius group with sensors in the helmet and Di2. Seemed to work fine too. I'm just perplexed that nothing has evolved out of that since then... Seemed to be made pretty much out of stock electronics and far from complicated.
it's all on YouTube...
http://m.youtube.com/watch?v=lWzdWMapJ-c
I am digging the iPhone/stem thing, anything like that available?
Ti or dye!
The Weenie formally known as CAADHEAD
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Miller
- Posts: 2768
- Joined: Thu Sep 21, 2006 8:54 pm
- Location: Reading, UK
by Miller on Sat May 17, 2014 9:13 am
pdlpsher1 wrote:With electronic shifting I could see 12 or 13 speeds on the horizon
Agree that electronic would be the way to go for the necessary precision but I think there will be several factors holding back manufacturers from going in this direction. It would require an even narrower and more expensive chain with follow-on impacts all through the drivetrain: derailleur, chainsets, cassettes all would need redesign. For any manufacturer with existing groups, almost nothing in any existing drivetrain would transfer across to a higher number of gears, unlike the current situation where mechanical and electronic systems share several components.
Still, an interesting idea.
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Butcher
- Shop Owner
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KWalker
- Posts: 5722
- Joined: Mon Dec 28, 2009 8:30 pm
- Location: Bay Area
by KWalker on Sat May 17, 2014 7:02 pm
ergott wrote:pdlpsher1 wrote:It might be ok since 99% of PMs are already wireless and I don't hear a movement going away from that.
Big difference between missing data from a PM and not being able to shift when you want to.
PMs have tons of data drop problems still.
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KWalker
- Posts: 5722
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- Location: Bay Area
by KWalker on Sat May 17, 2014 7:05 pm
pdlpsher1 wrote:ergott wrote:Um, as I said before. How is a mechanic supposed to work on the bike? How do you spin the crank if you need both hands to shift the gears?
Yes this would be a major challenge. On the positive side once an electronic group is dialed in it doesn't need to be worked on again
Not true. My Ultegra di2 still needed maintenance albeit not as much as a cabled group. Usually it would have to do with rear trim as the drivetrain wore.
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pdlpsher1
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by pdlpsher1 on Sat May 17, 2014 9:14 pm
KWalker wrote:Not true. My Ultegra di2 still needed maintenance albeit not as much as a cabled group. Usually it would have to do with rear trim as the drivetrain wore.
If a component is worn enough to warrant an adjustment on the RD, wouldn't it be better off to just replace the component? My current chain is quite worn and it'll be due for a replacement within 500mi. I still haven't had to adjust the RD for 2,000+ miles. I'm curious to find out exactly why you need to adjust the RD. My Di2 has been 100% maintenance free (other than two disconnected cables due to an installation error by my mechanic).
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showdown
- Posts: 230
- Joined: Fri Sep 17, 2010 4:48 pm
by showdown on Sat May 17, 2014 11:17 pm
Was chatting to a wrench who works at a shop that has the inside track with SRAM on today's ride... he told me that the system would have a bunch of satellite shifters when it debuts a la Di2. he then got real quiet and recounted the NDA he had to sign last year when the first prototypes were sent to the shop for playing/testing...
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rma
- Posts: 169
- Joined: Mon Apr 21, 2014 9:17 pm
- Location: Belo Horizonte, Brazil
by rma on Wed May 21, 2014 11:03 pm
When going electronic, I went from a 3-month adjustment cycle (mechanical) to a 12-month adjustment cycle. That's a LOT!