One hand set up?

Discussion in 'UK and Europe' started by Dave, Jun 3, 2003.

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  1. Dave

    Dave Guest

    Due to an accident I can't use my right hand. I've been riding fixed for a while but now want to
    built up a geared road bike.

    My plan is to use Profile Airwing bars with one bar end shifter and one Campag Ergo lever with both
    brakes operated by the same lever.

    Problem is that the left hand lever operates the front mech. It would be much more convenient for me
    if it worked the rear.

    Alternatively, I could fit tri bars and use two bar end shifters or something like those old
    GripShift things designed for road bikes.

    Does anyone have any suggestions?

    Thanks Dave
     
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  2. Dave wrote:
    >
    > Due to an accident I can't use my right hand. I've been riding fixed for a while but now want to
    > built up a geared road bike.
    >
    > My plan is to use Profile Airwing bars with one bar end shifter and one Campag Ergo lever with
    > both brakes operated by the same lever.
    >
    > Problem is that the left hand lever operates the front mech. It would be much more convenient for
    > me if it worked the rear.
    >
    > Alternatively, I could fit tri bars and use two bar end shifters or something like those old
    > GripShift things designed for road bikes.
    >
    > Does anyone have any suggestions?

    I would have thought that braking would be far more of an issue than gear changing, and that having
    two brakes operated from a single lever could be a real hazard in an emergency. Using derailleur
    gears, I can't see how you could also use a back- pedal brake, but I understand there are now
    multi-ratio
    (e.g., ten ratios) epicyclic gears, some of which /might/ have back-pedal-breaking functionality.
    Does this seem an option, or are you absolutely committed to derailler gears ?

    Philip Taylor
     
  3. David Nutter

    David Nutter Guest

    Dave <[email protected]> said:

    > Problem is that the left hand lever operates the front mech. It would be much more convenient for
    > me if it worked the rear.
    >
    > Alternatively, I could fit tri bars and use two bar end shifters or something like those old
    > GripShift things designed for road bikes.
    >
    > Does anyone have any suggestions?

    This may seem an odd suggestion but what about downtube or (better yet) stem-mounted shifters? You
    can easily operate them both with one hand, assuming you can manage to bend down without another
    hand to support your weight.

    Regards,

    -david
     
  4. Peter Clinch

    Peter Clinch Guest

    Dave wrote:
    > Due to an accident I can't use my right hand. I've been riding fixed for a while but now want to
    > built up a geared road bike.
    >
    > Does anyone have any suggestions?

    You could do your gearing via a Schlumpf Mountain/Speed/Super Speed drive rather than a double
    chainring (or probably in place of a triple as the range change is much bigger). You operate these
    by tapping the button in the middle of the crank with your heel, so hands aren't required. You'd
    need a little float on a clipless pedal to use one, but I think it should work.

    Pete.
    --
    Peter Clinch University of Dundee Tel 44 1382 660111 ext. 33637 Medical Physics, Ninewells Hospital
    Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email protected]
    http://www.dundee.ac.uk/~pjclinch/
     
  5. Jim Price

    Jim Price Guest

    Dave wrote:
    > Due to an accident I can't use my right hand. I've been riding fixed for a while but now want to
    > built up a geared road bike.
    >
    > My plan is to use Profile Airwing bars with one bar end shifter and one Campag Ergo lever with
    > both brakes operated by the same lever.
    >
    > Problem is that the left hand lever operates the front mech. It would be much more convenient for
    > me if it worked the rear.
    >
    > Alternatively, I could fit tri bars and use two bar end shifters or something like those old
    > GripShift things designed for road bikes.
    >
    > Does anyone have any suggestions?

    If you were going to consider Shimano mountain bike components, some people have suggested that the
    action of the latest XTR levers is "back to front" to the extent that Specialised have used on some
    models a rear derailleur which reverses the gear changing order. This may make it a potential
    lever/shifter to use for the rear derailleur on the left hand side. This may work with Profile
    Airwing style bars, if the bar diameter is not too big. You would need to implement the two into one
    brake cable adapter externally.

    Jim Price
     
  6. In message <[email protected]>, "Philip TAYLOR [PC87S-O/XP]"
    <[email protected]> writes
    >I would have thought that braking would be far more of an issue than gear changing, and that having
    >two brakes operated from a single lever could be a real hazard in an emergency.

    I've heard that this is quite a common arrangement.
    --
    Michael MacClancy
     
  7. James Hodson

    James Hodson Guest

    On Tue, 3 Jun 2003 16:19:01 +0100, "Dave" <[email protected]> wrote:

    >Does anyone have any suggestions?
    >

    Campag Ergo for rear mech and down tube lever for front mech? I don't know if this is at all
    possible as I don't know the specs of the US levers?

    Would not left sided Ergos for the US operate the rear mechs? I think t'was Sheldon "I brake
    correctly" Brown who wrote an article on the evils and perils of front wheel versus rear
    wheel braking.

    Whatever, from <http://www.campagnolo.com/branch.php> I see

    CAMPAGNOLO USA INC. 2105-L Camino Vida Roble - Carlsbad CA 92009 U.S.A. Phone: +1-760-9310106 Fax:
    +1-760-9310991

    James

    --
    http://homepage.ntlworld.com/c.butty/Dscf0632.jpg
     
  8. Pete Biggs

    Pete Biggs Guest

    Dave wrote:
    > Due to an accident I can't use my right hand. I've been riding fixed for a while but now want to
    > built up a geared road bike.
    >
    > My plan is to use Profile Airwing bars with one bar end shifter and one Campag Ergo lever with
    > both brakes operated by the same lever.
    >
    > Problem is that the left hand lever operates the front mech. It would be much more convenient for
    > me if it worked the rear.

    I'm going to try an experiment for you - as I'll soon be removing my Ergos to service anyway
    (probably next Monday). I'll try wiring the left Ergo to the rear derailleur. Perhaps some
    custom-spaced cassette could be used or alternative cable anchoring, even using two clicks per shift
    if necessary. I've got a feeling /some/ solution could be worked out with them.

    What is the minimum number of rear sprockets that you would be prepared to use?

    Alternatively, what about getting some parts made especially for the Ergo? Might cost a fortune but
    then so do new top-end Ergos!

    A very crude solution for Ergos would be to use worn-out ratchet springs. There would then be no
    clicks and levers would act like friction levers (as I have discovered myself). Trouble is, there's
    a danger of slippage because of insufficient friction.

    What about old-style thumb shifters? Perhaps one/they could be fitted to some kind of mini handlebar
    extension.

    ~PB
     
  9. Pete Biggs

    Pete Biggs Guest

    Philip TAYLOR [PC87S-O/XP] wrote:
    > I would have thought that braking would be far more of an issue than gear changing, and that
    > having two brakes operated from a single lever could be a real hazard in an emergency.

    Just a front brake may be enough to suffice, or rear could be deliberately made less powerful
    somehow so wouldn't hinder too much in ermergencies.

    ~PB
     
  10. Dave

    Dave Guest

    > I would have thought that braking would be far more of an issue than gear changing, and that
    > having two brakes operated from a single lever could be a real hazard in an emergency.

    Braking is an issue that I've wrestled with for the last ten years. The fixie that I ride at the
    moment is road legal but on a steep descent I would feel safer on a decent with a freewheel.

    > derailleur gears, I can't see how you could also use a back- pedal brake,

    Hub gears are not an option on this bike but thanks for the suggestions.

    Regards Dave
     
  11. Dave

    Dave Guest

    > This may seem an odd suggestion but what about downtube or (better yet) stem-mounted shifters? You
    > can easily operate them both with one hand,

    Good suggestion but most oversized alluminium frames don't appear to have the neccesary braze-ons
    and I'm not sure the old stem mounted lever would fit with the Aheadsets. I'll look into it though.

    Thanks Dave.
     
  12. Dave

    Dave Guest

    > You could do your gearing via a Schlumpf Mountain/Speed/Super Speed

    Thanks for the suggestion but I'm planning to build a race bike and the Schlumpf is too heavy.

    Cheers Dave
     
  13. Dave

    Dave Guest

    > I'm going to try an experiment for you

    You are a top bloke Mr Biggs

    > What is the minimum number of rear sprockets that you would be prepared to
    use?

    It would have to be 9 or 10 I'm afraid.

    > Alternatively, what about getting some parts made especially for the Ergo? Might cost a fortune
    > but then so do new top-end Ergos!

    Ouch!

    > A very crude solution for Ergos would be to use worn-out ratchet springs. There would then be no
    > clicks and levers would act like friction levers
    (as I have discovered myself). Trouble is, there's a danger of slippage because of
    insufficient friction.

    Exactly, you've answered your own question.

    > What about old-style thumb shifters? Perhaps one/they could be fitted to
    some kind of mini handlebar extension.

    I'm looking into it. Many thanks Dave
     
  14. Mads Hilberg

    Mads Hilberg Guest

    > Thanks for the suggestion but I'm planning to build a race bike and the Schlumpf is too heavy.

    Have you considered a WindCheetah? It would seem to be ideal for someone in your situation. Of
    course this means joining the dark side...

    Mads
     
  15. Pete Biggs

    Pete Biggs Guest

    Dave wrote:
    >> This may seem an odd suggestion but what about downtube or (better yet) stem-mounted shifters?
    >> You can easily operate them both with one hand,
    >
    > Good suggestion but most oversized alluminium frames don't appear to have the neccesary braze-ons

    Clip-on levers or levers with a clip-on adaptor could be used. For example, old Shimano 105 d/t
    levers comprised an adaptor (including "dummy" braze-ons) and ordinary-style levers. But I'm not
    sure if they'd fit a modern oversized downtube - but I would imagine some kind of bracket could be
    made especially instead.

    ~PB
     
  16. Dave

    Dave Guest

    What a rush!
     
  17. Dave

    Dave Guest

    > Have you considered a WindCheetah? It would seem to be ideal for someone
    in
    > your situation. Of course this means joining the dark side...
    >

    Funnily enough I did consider a Windcheetah way back when I messed up my arm. But luckily I saw
    the light.
    :)

    D.
     
  18. Mads Hilberg

    Mads Hilberg Guest

    > Funnily enough I did consider a Windcheetah way back when I messed up my arm. But luckily I saw
    > the light.
    > :)

    ...or not - depending on your point of view. What made you decide against it?

    Mads
     
  19. Sabineuk

    Sabineuk Guest

    James Hodson [email protected] said:

    >Would not left sided Ergos for the US operate the rear mechs?

    They do gears the same way round we do.

    John
     
  20. Sabineuk

    Sabineuk Guest

    Michael MacClancy [email protected] said:

    >>I would have thought that braking would be far more of an issue than gear changing, and that
    >>having two brakes operated from a single lever could be a real hazard in an emergency.
    >
    >I've heard that this is quite a common arrangement.

    It used to be a common arrangement on tandems: it's a bloody menace as you can't set the brakes up
    to both work properly.

    As James Hodson said, I think Sheldon Brown has an article on it:
    http://www.sheldonbrown.com/tandem-brakes.html and scroll down to Control Setup.

    Given that the front brake is the primary, do you want the ability to brake both wheels at once in
    normal riding, or do you just want a rear brake to keep you legal and in case the front fails?

    Personally, I'd aim for the latter and run a normal rear brake from either a lever on tri-bars, or
    perhaps from a mountain bike lever on the tops (need to watch the cable pull though). If you want to
    be able to brake both at once, maybe run the rear from a gear shifter (bar-end?) so you can use it
    as a drag brake while controlling the front directly? This might work better if you could use a
    tandem hub with drum brake.

    As for the gears, my inclination would be to go for bar-ends in tri bars, or for one of the adaptors
    to allow you to mount D/T shifters at the end of tri bars (can't remember brands, sorry). That way,
    both shifters are close to each other. If you're racing, I'm sceptical about running a front Ergo
    with a rear bar-end.

    I know you said hub gears weren't an option, but have you looked seriously at something like the
    Rohloff? Weight and cost I guess ...

    Good luck anyway ...

    John
     
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