Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Electronic Shifting, splain.

Search
Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Electronic Shifting, splain.

Thread Tools
 
Search this Thread
 
Old 11-30-11 | 01:02 PM
  #101  
RaleighSport's Avatar
Thread Starter
Hogosha Sekai
10 Anniversary
 
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS

Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition

Originally Posted by Carcinogent
Four (4) wires connecting to a harness. The two wires from the shifters enter a junction box that is connected to one of the four. Really difficult to get it wrong.

1. Junction box (from the 2 shifters)
2. Battery
3. FD
4. RD
K That fits with what I was originally thinking and makes the humor in his statement more apparent, thanks Car.
RaleighSport is offline  
Reply
Old 11-30-11 | 01:14 PM
  #102  
Senior Member
15 Anniversary
 
Joined: Jan 2010
Posts: 132
Likes: 0
From: France
Originally Posted by RaleighSport
K That fits with what I was originally thinking and makes the humor in his statement more apparent, thanks Car.
Np. With the internally routed kit you have all the empty spaces inside the frame tubes to take all the wire slack (not a lot to begin with).Externally... if you have very long wires on a very small frame you can use the harness under the BB to 'spool' some of the dangling wires to get a cleaner look, just as you would have to cut standard brake/shifter cables to length. The latter takes tens of minutes when done right and is not reversible=). 'Shortening' Di2 wiring takes a couple of more bends and turns of the wiring in the harness. Internal or external kit, it is not even close to a spaghetti mess.

-Carcinogent
Carcinogent is offline  
Reply
Old 11-30-11 | 01:29 PM
  #103  
aixaix's Avatar
car guy, recovering
Titanium Club Membership
15 Anniversary
 
Joined: Nov 2008
Posts: 1,255
Likes: 9
From: Mount Vernon, NY

Bikes: Olympia Competizione & Special Piuma, Frejus track circa 1958, Dahon Helios, many others

Electronics for the masses is still a ways off.
Surely you jest, sir! To quote "Pacific Overtures", "We will do it, and quicker than you think!"
__________________
Michael Shiffer
EuroMeccanicany.com
aixaix is offline  
Reply
Old 11-30-11 | 01:45 PM
  #104  
mconlonx's Avatar
Senior Member
 
Joined: Jun 2007
Posts: 7,552
Likes: 135
Originally Posted by RaleighSport
So I'm curious, just how much wiring is really involved then since you're saying a spaghetti clump of wires.. I assumed the wiring was quite minimal, am I wrong here?
Originally Posted by Carcinogent
Internal or external kit, it is not even close to a spaghetti mess.
Minimal compared to what? I'm talking about compared to a bike without electronic shifting...

Yes, minimal wiring, and Shimano labels all the wire ends, so you'd really have to be not paying attention to get it wrong. Wires are not wimpy at all and the connectors are super solid. Boss rides through all kinds of sloppy weather with it, and water/salt is not an issue with the system. He's also never run out of battery mid-ride.
mconlonx is offline  
Reply
Old 11-30-11 | 01:46 PM
  #105  
RaleighSport's Avatar
Thread Starter
Hogosha Sekai
10 Anniversary
 
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS

Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition

Originally Posted by Carcinogent
Np. With the internally routed kit you have all the empty spaces inside the frame tubes to take all the wire slack (not a lot to begin with).Externally... if you have very long wires on a very small frame you can use the harness under the BB to 'spool' some of the dangling wires to get a cleaner look, just as you would have to cut standard brake/shifter cables to length. The latter takes tens of minutes when done right and is not reversible=). 'Shortening' Di2 wiring takes a couple of more bends and turns of the wiring in the harness. Internal or external kit, it is not even close to a spaghetti mess.

-Carcinogent
I've done some car rewiring.. and a lot of time dealing with car stereo harnesses.. (improving there of and DIY hacking f-ing early 90's saabs are fun I swear). So I'd imagine you can make that really clean really easy!
RaleighSport is offline  
Reply
Old 11-30-11 | 03:50 PM
  #106  
Senior Member
15 Anniversary
 
Joined: Jan 2010
Posts: 132
Likes: 0
From: France
Originally Posted by RaleighSport
I've done some car rewiring.. and a lot of time dealing with car stereo harnesses.. (improving there of and DIY hacking f-ing early 90's saabs are fun I swear). So I'd imagine you can make that really clean really easy!
Hehe. So you'll be right at home when you have to be creative with Di2 on non Di2 compatible frames and/or installing an internal battery.
Carcinogent is offline  
Reply
Old 11-30-11 | 04:02 PM
  #107  
RaleighSport's Avatar
Thread Starter
Hogosha Sekai
10 Anniversary
 
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS

Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition

Originally Posted by mconlonx
Minimal compared to what? I'm talking about compared to a bike without electronic shifting...

Yes, minimal wiring, and Shimano labels all the wire ends, so you'd really have to be not paying attention to get it wrong. Wires are not wimpy at all and the connectors are super solid. Boss rides through all kinds of sloppy weather with it, and water/salt is not an issue with the system. He's also never run out of battery mid-ride.
I know I haven't expressed it well by major battery concern is well.. that it's a battery, it can leak, be defective, crack, run out of juice, have a wire nicked.. I've lost a lot of the concern with the discussion in here of the battery life/wiring setup, and of course it's more complex wiring then mechanical! but for electric, that's down right simple. Makes me wonder if there's a market for add on servos for regular derailers...
RaleighSport is offline  
Reply
Old 11-30-11 | 04:14 PM
  #108  
Senior Member
 
Joined: Jun 2011
Posts: 155
Likes: 0
From: Winnipeg, MB, Canada
Front indexing is possibly the worst 'feature' Shimano has ever forced upon cycling; those used to friction front shifting might not notice quite the same improvement in front shifting. (To be fair, I haven't tried micro-ratcheting Campy front shifting, just the Shimano variety.)
dave35 is offline  
Reply
Old 11-30-11 | 04:49 PM
  #109  
Bike Gremlin's Avatar
Mostly harmless ™
 
Joined: Nov 2010
Posts: 4,463
Likes: 244
From: Novi Sad

Bikes: Heavy, with friction shifters

Originally Posted by dave35
Front indexing is possibly the worst 'feature' Shimano has ever forced upon cycling;
Amen to that.
Bike Gremlin is offline  
Reply
Old 11-30-11 | 05:17 PM
  #110  
Senior Member
 
Joined: Dec 2005
Posts: 7,848
Likes: 4
Micro racheting is almost like friction, just tiny clicks to micro adjustment and u are all set. But that feature is not in all the stuff from campy. Remember a veloce brifter i had, that came w/o the feature, but worked way better than sora tho.
ultraman6970 is offline  
Reply
Old 11-30-11 | 05:29 PM
  #111  
Senior Member
20 Anniversary
 
Joined: Dec 2002
Posts: 4,665
Likes: 0
From: So Cal

Bikes: 2012 Trek Madone 6.2

Originally Posted by RaleighSport
I know I haven't expressed it well by major battery concern is well.. that it's a battery, it can leak, be defective, crack, run out of juice, have a wire nicked.. I've lost a lot of the concern with the discussion in here of the battery life/wiring setup, and of course it's more complex wiring then mechanical! but for electric, that's down right simple. Makes me wonder if there's a market for add on servos for regular derailers...
I haven't had a battery go bad in a car, watch, rechargables for ever and it seems to have enough warnings of low battery so if it happens it's the users fault. You put air in your tires, lube your chain and charge the battery. My conern is it's so cool I'll shift for the hell of it.
shokhead is offline  
Reply
Old 12-01-11 | 09:47 AM
  #112  
3alarmer's Avatar
Senior Member
 
Joined: Nov 2010
Posts: 22,994
Likes: 10,498
From: Sacramento, CA

Bikes: old ones

Originally Posted by Carcinogent

P.S. For the daredevils you can post this thread in Road Cycling. Ask for PCad.
Pcad............
3alarmer is offline  
Reply
Old 12-01-11 | 11:02 AM
  #113  
Senior Member
 
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

While were discussing the complexity, desired or not, of the newer component systems, here's news that it's about to get better or worse. The following was just posted on the RoadBikeRider e-newsletter:

" News leaked out this week at Taiwan Bike Week (where components that will be spec’d on 2013 bikes are introduced) that Shimano is planning to launch its new 9000-series Dura-Ace 11-speed components group (not electric).

We heard at Interbike that this might happen, and now we know. Industry scuttlebutt has it that this will force SRAM to show their hand since they are getting dropped now by Campy with its electric group debut, and Shimano with its Ultegra Di2 and now brand-new D-A 11.

Another interesting tidbit from the leaked Shimano spec sheet is that it seems to confirm earlier reports of a new road-specific mechanical disc brake for 2013, as well.

Finally, there’s also speculation that Shimano’s Dura-Ace Di2 electric group will move to an 11-speed option this summer."
HillRider is offline  
Reply
Old 12-01-11 | 12:53 PM
  #114  
BikeWise1's Avatar
30 YR Wrench
 
Joined: Aug 2005
Posts: 2,006
Likes: 4
From: Oxford, OH

Bikes: Waterford R-33, Madone 6.5, Trek 520

Just because we can do something, it does not necessarily follow that we must do it.

I have ridden and worked on DI2. It is interesting in a technical sense but I find no personal need to further idiot-proof such a simple activity as shifting gears on a bicycle. We humans have a particular love of inserting extra machinery and attendant complexity into every facet of our lives. We now have cars that are so complex, owning one without a warranty is considered foolhardy at best.

I drove a friend's new Lexus Hybrid SUV for several hours last week. While quite fascinating on one level, the feeling of there being a layer of electronics interpreting my inputs was pervasive. It's not an illusory layer, either, and those devices with lots of wires sticking out are often where the expensive trouble begins. He expects to trade it before 100,000 miles. Meanwhile, my old-tech BMW approaches 300,000 on the original drivetrain and has an electrical system that can be diagnosed with a multimeter, as opposed to the $44,000 BMW dealer computer the new cars are designed to rely upon because they've grown so unfathomably complex. The dealer mechanics aren't even being told how to fix the cars.....Proprietary Information! is the new cry of the car companies......

But, we humans are also easily led to believe what we currently have is always clearly inferior to what the companies who must sell us new things tell us we need....
BikeWise1 is offline  
Reply
Old 12-01-11 | 01:32 PM
  #115  
Senior Member
20 Anniversary
 
Joined: Dec 2002
Posts: 4,665
Likes: 0
From: So Cal

Bikes: 2012 Trek Madone 6.2

How about if some of us like it just because it's cool, works great and keeps cycling moving forward. BTW, complex stuff is only that way until you get it, then it's nothing but cool imo of course.
shokhead is offline  
Reply
Old 12-01-11 | 04:01 PM
  #116  
aixaix's Avatar
car guy, recovering
Titanium Club Membership
15 Anniversary
 
Joined: Nov 2008
Posts: 1,255
Likes: 9
From: Mount Vernon, NY

Bikes: Olympia Competizione & Special Piuma, Frejus track circa 1958, Dahon Helios, many others

complex stuff is only that way until you get it, then it's nothing but cool
Until it breaks. (Ducking for cover!)
__________________
Michael Shiffer
EuroMeccanicany.com
aixaix is offline  
Reply
Old 12-01-11 | 04:05 PM
  #117  
Senior Member
 
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Originally Posted by BikeWise1
. We now have cars that are so complex, owning one without a warranty is considered foolhardy at best.....
Meanwhile, my old-tech BMW approaches 300,000 on the original drivetrain and has an electrical system that can be diagnosed with a multimeter, as opposed to the $44,000 BMW dealer computer the new cars are designed to rely upon because they've grown so unfathomably complex. The dealer mechanics aren't even being told how to fix the cars.....Proprietary Information! is the new cry of the car companies.........
You can't equate the current complexity of cars with bicycles. Automotive developments are being driven (pun unavoidable) by the demands for improved fuel economy, safety and polution control. None of these objectives apply to bikes. That said, the modern automobile is a marvel of long term reliability compared to it's much simpler predecessors of even the 1970's and 1980's.
HillRider is offline  
Reply
Old 12-01-11 | 04:18 PM
  #118  
Jed19's Avatar
Senior Member
 
Joined: Oct 2004
Posts: 4,224
Likes: 6
Complexity and reliability are not mutually exclusive.

Just saying.
Jed19 is offline  
Reply
Old 12-01-11 | 06:37 PM
  #119  
Senior Member
20 Anniversary
 
Joined: Dec 2002
Posts: 4,665
Likes: 0
From: So Cal

Bikes: 2012 Trek Madone 6.2

Originally Posted by aixaix
Until it breaks. (Ducking for cover!)
Very old school to think that nowadays. I remember skabeboards at the start and alot of you don't, a redboard with steel wheels and when things started to change it was oh sh$t, that is stupit and that will never work. Gee, look at them now. Not saying it will happen but in 10 years if you don't have electronic shifting then your old school. I've seen video with the tester trying to do everything wrong possible to screw up the shifting and they couldn't. If the battery goes dead then the rider didn't pay attention. Like anything else you'll have a few lemons but that happens with everything. It seems with it you would have less reason for a tuneup.

Last edited by shokhead; 12-01-11 at 06:45 PM.
shokhead is offline  
Reply
Old 12-01-11 | 06:45 PM
  #120  
Senior Member
 
Joined: Sep 2011
Posts: 403
Likes: 0
As I've alluded to previously, as soon as one of the big brands has electronic shifters in a triple version, I'm putting a set on our tandem. Driving a tandem is a lot like driving a charter bus: driver up front, transmission forty feet back. Half the time we're out of trim and I don't hear it, but the Mrs. is asking me to trim. When it's time to trim, I can't see what it's doing, so I have to guess. Sometimes, a trim results in a surprise ring shift, at which point the Mrs. is "getting my attention" a little more. Mechanical shifting's simplicity may be great, but with 7.5' long cables and less-than-top-of-the-line components (can't get DA/Super Record/Record for our bike), I'm ready for the better choice.
p2templin is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
catgita
Bicycle Mechanics
19
05-30-17 09:15 PM
mynewnchome
Classic & Vintage
15
04-09-17 07:25 PM
tsappenfield
Classic & Vintage
28
06-06-12 12:55 PM
RJM
Road Cycling
200
03-06-12 03:29 PM
Capecodder
Classic & Vintage
81
02-28-11 05:01 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.