Advertise on Bikeforums.net



User Tag List

Page 2 of 2 FirstFirst 12
Results 26 to 40 of 40
  1. #26
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    UPDATE:

    I went to about 5 local shops yesterday. In the last shop, I found a right side JTEK shifter that had been laying around for years. It's indexed for Alfine 8 speed. I got it for a good price.





    http://jtekengineering.com/barendshifter.php

    I checked and it fits on the end of Nitto bars.

    PROS: The switching is VERY hard and deliberate.
    CONS: I won't be able to fine-tune it like a friction shifter.

    Quote Originally Posted by bigfred View Post
    My thought was that you could use the inline adjuster to set a base line resistance comparable to laps 2-4 of the kilo. Then use the barcon or thumbie to simulate starting resistance. This would provide you with the ability to lessen resistance with minimal thought and no chance of over adjusting while going flat out. Just a way of providing greater consistancy with regard to where you end up late as you complete the accelleration phase.

    If you're using it like the video below, there wouldn't be an advantage. But, that doesn't look productive to me. Or, at the very least, far, far from ideal.

    I'm also wondering if a multispeed tt/barend/aero shifter would have sufficient resistance in it's detents to hold braking pressures. Having 10 consistent set points in addition to the inline adjuster might be advantageous with regard to repeatability.

    Let us know how your experiment works out.
    Ah. I see what you mean now.
    Last edited by carleton; 01-07-14 at 12:47 PM.

  2. #27
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    633
    Mentioned
    31 Post(s)
    Tagged
    0 Thread(s)
    you will have 8 increments , as you pull the cable tighter .. it may be adequate .. only time will tell

  3. #28
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by fietsbob View Post
    you will have 8 increments , as you pull the cable tighter .. it may be adequate .. only time will tell
    On a related note, the reference Cateye CS-1000 also used an indexed lever with about 6-8 increments. Yeah, time will tell. I'm waiting on 1 more part to arrive then I'll have it complete.

  4. #29
    Senior Member
    Join Date
    Jan 2009
    Location
    NZ
    My Bikes
    More than 1, but, less than S-1
    Posts
    3,545
    Mentioned
    17 Post(s)
    Tagged
    0 Thread(s)
    The minnions anxiously await photographic evidence of your success in creating "Carleton's Frankentrainer".
    Birth Certificate, Passport, Marriage License Driver's License and Residency Permit all say I'm a Fred. I guess there's no denying it.

  5. #30
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    633
    Mentioned
    31 Post(s)
    Tagged
    0 Thread(s)
    stick an inline cable adjuster in the housing path and you might be able to tweak
    the use of the space between detents .. since you are stationary at least you wont crash into Anything.

    and Get on Paul Allen, Etc. about putting up a Velodrome.

    there was that thing on the ballot last year about a [Private, non tribal] Casino on an old,
    betting on the Dogs track site, in Portland.

    Maybe a Japanese style Keirin track would get funding, since In Japan they have Betting windows ,
    taking odds, and Money, on which guy will Win, show and Place..

  6. #31
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by bigfred View Post
    The minnions anxiously await photographic evidence of your success in creating "Carleton's Frankentrainer".


    Quote Originally Posted by fietsbob View Post
    stick an inline cable adjuster in the housing path and you might be able to tweak
    the use of the space between detents .. since you are stationary at least you wont crash into Anything.

    and Get on Paul Allen, Etc. about putting up a Velodrome.

    there was that thing on the ballot last year about a [Private, non tribal] Casino on an old,
    betting on the Dogs track site, in Portland.

    Maybe a Japanese style Keirin track would get funding, since In Japan they have Betting windows ,
    taking odds, and Money, on which guy will Win, show and Place..
    I just moved here about a year ago and I'm amazed at how BIG cycling is here. People ride/commute rain, snow, sleet or shine. The velodrome is very popular, too. This summer I showed up early for a workout and there was a new riders clinic for women only with something like 30 or more ladies participating. That's HUGE. Most clinics have 0-3 women sprinkled among the men.

    I'm not much of a "mover and shaker" when it comes to big initiatives like this. But, I'm good at helping and opening my wallet

  7. #32
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    633
    Mentioned
    31 Post(s)
    Tagged
    0 Thread(s)
    Cost of Living in PDX will help your wallet lighten . but the SF bay area is worse, so take that in .

  8. #33
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    UPDATE:

    As bigfred and fietsbob thought, the indexes on the 8-speed shifter are simply too far apart. I only have 3 usable selections: OFF, Barely Touching, and Immovable

    Luckily, I ordered some Dia-Compe Silver Bar End Shifters last week which should arrive today or tomorrow.

    The product description is as follows:
    These are copies of the Suntour Micro ratcheting shifters and one of the best shifters of all time (only the discontinued Simplex retro-friction are slightly nicer). These are the Dia Compe Silver down tube shifters adapted to bar enduse.


    Back to work...

  9. #34
    Senior Member
    Join Date
    Jan 2009
    Location
    NZ
    My Bikes
    More than 1, but, less than S-1
    Posts
    3,545
    Mentioned
    17 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the update Carleton. I had been wondering how it was going. Hopefully the micro ratcheting will offer better control.
    Birth Certificate, Passport, Marriage License Driver's License and Residency Permit all say I'm a Fred. I guess there's no denying it.

  10. #35
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Update:

    The Dia-Compe shifters (above) that I ordered were lost in transit due to USPS error. Ben's Cycle is sending out another set.

    In the mean-time, I found a set of these in a local shop:

    (random pic from the internet)


    The ones I got were pretty beat up but they work perfectly! They hold the tension at any setting solid as a rock.

    Problem solved. Thanks for the help!!

  11. #36
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    633
    Mentioned
    31 Post(s)
    Tagged
    0 Thread(s)
    my Go-To shift levers for 30 years..

    I got off the 'more speeds is better' bandwagon
    long ago because I was never unhappy with my drivetrain function ..

    Until I adopted a Rohloff hub equipped Bike .. in 08..
    Last edited by fietsbob; 01-16-14 at 03:08 PM.

  12. #37
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by fietsbob View Post
    my Go-To shift levers for 30 years..
    I can see why! The engineering is amazing.

  13. #38
    Senior Member
    Join Date
    Nov 2011
    Posts
    122
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you would like to use the repeatability of an indexed shifter, but are held back because the cable pull is wrong, you could try a Travel Agent. Travel Agents come in regular (designed to fit into the yoke on a V-brake) and in an in-line version. The in-line version is not currently in production, but are readily available, and are probably the best choice for your application. Here's an example (no relationship to the seller): http://www.ebay.com/itm/Problem-Solv...-/370606573179

  14. #39
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    UPDATE:

    Thanks again, guys. Last week I was able to pour 1960W into the machine and it was really steady.



    So, being that we are never satisfied...

    My SRM track cranks are just sitting on my track bike and won't be used until April or May when the season is about to begin. I want to put them on this thing. They use the Octalink BB.

    The SRM records data at a faster rate and sooner than the PowerTap. With the PowerTap I miss the first few seconds of the effort.

    I called Cycleops and they said that the BB in the unit is a 113x68 ISIS and uses that big steel combined crank and chainring thing. I have a 109.5 Dura Ace BB, but I think that will throw the chainline off.

    So, what are my Octalink options? I've only seen 109.5mm. Are there longer ones? Anybody got a part number for something longer?

    Thanks!
    Last edited by carleton; 01-28-14 at 11:28 AM.

  15. #40
    Elitist carleton's Avatar
    Join Date
    Jul 2005
    Location
    Atlanta, GA
    Posts
    11,040
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by WheelsNT View Post
    If you would like to use the repeatability of an indexed shifter, but are held back because the cable pull is wrong, you could try a Travel Agent. Travel Agents come in regular (designed to fit into the yoke on a V-brake) and in an in-line version. The in-line version is not currently in production, but are readily available, and are probably the best choice for your application. Here's an example (no relationship to the seller): http://www.ebay.com/itm/Problem-Solv...-/370606573179
    Thanks, wheels. I think the current friction shifter is perfect. But, this is a great idea.

Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •