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Shimano Bar-End Shifters and SRAM DualDrive??
Say, didn't Peter Clinch say his girl Roos had this set-up on her Nazca Fiero?? How's that possible -- or did I misunderstand? |
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Shimano Bar-End Shifters and SRAM DualDrive??
NYC XYZ wrote: Say, didn't Peter Clinch say his girl Roos had this set-up on her Nazca Fiero?? How's that possible -- or did I misunderstand? You have to work out your own way of pulling the cable shifting the hub the right amount. I have no idea how well this can actually work and how much the hubs like it. |
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Shimano Bar-End Shifters and SRAM DualDrive??
Nate Knutson wrote:
NYC XYZ wrote: How's that possible -- or did I misunderstand? You have to work out your own way of pulling the cable shifting the hub the right amount. I have no idea how well this can actually work and how much the hubs like it. It's been working very well for several years on my trike with Sachs 3x - without any modifications to the shifters. I don't know if the hub likes it, but no complaints till now. Only problem I've experienced so far is some accidental shifting while my hands were resting on the shifters - the most comfortable position for me on my trike with under seat steering. Kurt |
#4
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Shimano Bar-End Shifters and SRAM DualDrive??
Nate Knutson wrote:
NYC XYZ wrote: How's that possible -- or did I misunderstand? You have to work out your own way of pulling the cable shifting the hub the right amount. I have no idea how well this can actually work and how much the hubs like it. It's been working very well for several years on my trike with Sachs 3x7 - without any modifications to the shifters. I don't know if the hub likes it, but no complaints till now. Only problem I've experienced so far is some accidental shifting while my hands were resting on the shifters - the most comfortable position for me on my trike with under seat steering. Kurt |
#5
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Shimano Bar-End Shifters and SRAM DualDrive??
NYC XYZ wrote:
Ah, so it *is* possible! No bike mechanic seems to know how, however. Nazca (www.nazca-ligfietsen.nl) supply bar ends as a standard on their underseat DualDrive machines, so maybe get in touch with them. The left changer for the hub has been hacked slightly so there is a click notch. Apparently if it isn't in the right place you'll cause excessive wear on the hub. Or something else that's a Bit Naughty. Roos' Fiero has this setup, it works very well. vertical disposition as employed on 'bents. But the SRAM DualDrive sounds like an overall superior drivetrain...? Depends what you want. Compared to XT it's better in town as you can change stood still. The front of the bike is cleaner with no derailleur, and no need to route cables up the boom. Also less chain wear, and no worries about using "wrong" gears when on big or small front rings. But it's less efficient than a pure derailleur and there's more rolling resistance freesheeling with a hub gear, and it's bigger faff taking the rear wheel out. Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net http://www.dundee.ac.uk/~pjclinch/ |
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Shimano Bar-End Shifters and SRAM DualDrive??
WTF is up with Nazca's site -- up half the time, down half the time! Ever since I first started getting the slightest glint of interest in recumbent bicycling almost a year ago, this company's webpages have been on-again/off-again. As for bar-end shifters and DualDrive, well, Hostel Shoppe (probably one of the two highest-rated US 'bent dealers, the other being the guy that also does projectmobility.org) wrote saying that they can imagine a way to incorporate the two, but it'll be time-consuming and expensive, involving a new set of wheels for some reason apparently having to do with disc brakes...? Might as well go Rohloff for those prices! But it was interesting to know they'd figured it out somehow. =) Peter Clinch wrote: NYC XYZ wrote: Ah, so it *is* possible! No bike mechanic seems to know how, however. Nazca (www.nazca-ligfietsen.nl) supply bar ends as a standard on their underseat DualDrive machines, so maybe get in touch with them. The left changer for the hub has been hacked slightly so there is a click notch. Apparently if it isn't in the right place you'll cause excessive wear on the hub. Or something else that's a Bit Naughty. Roos' Fiero has this setup, it works very well. vertical disposition as employed on 'bents. But the SRAM DualDrive sounds like an overall superior drivetrain...? Depends what you want. Compared to XT it's better in town as you can change stood still. The front of the bike is cleaner with no derailleur, and no need to route cables up the boom. Also less chain wear, and no worries about using "wrong" gears when on big or small front rings. But it's less efficient than a pure derailleur and there's more rolling resistance freesheeling with a hub gear, and it's bigger faff taking the rear wheel out. Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net http://www.dundee.ac.uk/~pjclinch/ |
#7
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Shimano Bar-End Shifters and SRAM DualDrive??
NYC XYZ wrote:
As for bar-end shifters and DualDrive, well, Hostel Shoppe (probably one of the two highest-rated US 'bent dealers, the other being the guy that also does projectmobility.org) wrote saying that they can imagine a way to incorporate the two, but it'll be time-consuming and expensive, involving a new set of wheels for some reason apparently having to do with disc brakes...? It's a standard option from Nazca, as are disc specific or non disc specific wheels. And Nazcas are cheaper than HPVels. Might as well go Rohloff for those prices! But it was interesting to know they'd figured it out somehow. =) Since it's a standard option on their USS bikes, I think they've figured it out a lot better than the chaps you mention above! Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net http://www.dundee.ac.uk/~pjclinch/ |
#8
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Shimano Bar-End Shifters and SRAM DualDrive??
Peter Clinch wrote:
NYC XYZ wrote: As for bar-end shifters and DualDrive, well, Hostel Shoppe (probably one of the two highest-rated US 'bent dealers, the other being the guy that also does projectmobility.org) wrote saying that they can imagine a way to incorporate the two, but it'll be time-consuming and expensive, involving a new set of wheels for some reason apparently having to do with disc brakes...? It's a standard option from Nazca, as are disc specific or non disc specific wheels. And Nazcas are cheaper than HPVels. Might be differences in availability of parts in different continents, resulting in having totally different levels of familiarity with the parts. I get the impression (from places like Sheldon Brown's website) that hub gears and dual-drive gears are rare in the USA, whereas they are regularly fitted to normal upright bikes in Germany and the Netherlands. As the latter two are home to many of Europe's recumbent designers, they would have access to the bits and pieces. - Nigel -- Nigel Cliffe, Webmaster at http://www.2mm.org.uk/ |
#9
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Shimano Bar-End Shifters and SRAM DualDrive??
Nigel Cliffe wrote:
Might be differences in availability of parts in different continents, resulting in having totally different levels of familiarity with the parts. Up to a point, but there again if the hack Nazca have worked out was /that/ obvious then everyone would be doing it, but if you get a DualDrive from HPVel or Optima (and I assume others) with underseat bars then you get the standard DD twistgrip which isn't as easy as you'd like to use becasue the business end is at the heel of your hand rather than between thumb and forefinger. So I'm inclined to think it's (a) quite a clever little hack, but further the case that (b) once they'd worked it out it doesn't cost them that much to implement. I don't know what's been done aside from some sort of index notch at the Magic Spot, but it works very nicely and much better than the standard control applied upside-down on an underseat bar. Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net http://www.dundee.ac.uk/~pjclinch/ |
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