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Old 08-15-09, 10:45 AM   #1
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It's not mine, but this hybrid is cool because...

Just found this. I so need a chainless bike. Twice now I've shifted incorrectly and BAM! Find myself getting greasy or walking the bike because the chain on the rear derailler (I think that's what it's called) is jammed.

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Old 08-15-09, 10:48 AM   #2
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That's kinda cool never saw that before
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Old 08-15-09, 10:54 AM   #3
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I also like a lot of the Breezer bikes. I just checked out their site and this seems new. It's like someone took a road bike, or a hybrid, and already customized the handlebars and such for you! It's a hybrid that is great for long distance. CHECK THESE OUT
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Old 08-15-09, 10:57 AM   #4
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I have seen those, they are nice
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Old 08-15-09, 11:09 AM   #5
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Some LBSs won't be able to service those bikes (the chainless ones).......just a reminder.
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Old 08-15-09, 11:13 AM   #6
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Some LBSs won't be able to service those bikes (the chainless ones).......just a reminder.
True. I'm not getting it but I do think it's pretty cool . Plus, my bike is still a newborn as it stands
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Old 08-15-09, 11:40 PM   #7
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Some LBSs won't be able to service those bikes (the chainless ones).......just a reminder.
Why not? Bike shops adapt to new equipment.
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Old 08-15-09, 11:42 PM   #8
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Shaft drive bikes are a pita.

It sounds like your bike needs a little tune up as if things are setup right a missed shift / dropped chain isn't going to happen.
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Old 08-15-09, 11:49 PM   #9
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Shaft drive bikes are a pita.

It sounds like your bike needs a little tune up as if things are setup right a missed shift / dropped chain isn't going to happen.
My set up should be fine. It's operator error for sure. Was in traffic, not moving really, and shifted twice to hopefully start smoother so TOTAL newbie error. At least I know what I did and how.

By the way, just for curiosity sake, I was told there's a chain catch of sorts that keeps the chain from coming off? If there is such a thing, why wouldn't everyone want that as a precaution?
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Old 08-16-09, 12:23 AM   #10
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Chain catcher. There used to be one called a 'shark tooth' but I couldn't find it.

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Old 08-16-09, 12:25 AM   #11
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Chain catcher. There used to be one called a 'shark tooth' but I couldn't find it.

Is it the blue piece? It sits just in front of the chain so it can't come off? Do you use one or is this just a random bike pic?
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Old 08-16-09, 12:27 AM   #12
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Harris Cyclery used to carry the Shark Tooth. If it's not in their online catalog, it would be worth a phone-call to ask them who got and where go.
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Old 08-16-09, 12:30 AM   #13
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Harris Cyclery used to carry the Shark Tooth. If it's not in their online catalog, it would be worth a phone-call to ask them who got and where go.
Next time I'm at my LBS I'll ask, they have all sorts of, how do you call them, random doohickeys behind the counter
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Old 08-16-09, 03:37 AM   #14
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Shaft drive bikes are a pita.

It sounds like your bike needs a little tune up as if things are setup right a missed shift / dropped chain isn't going to happen.
I was just going to suggest a tune up. They're a lot cheaper than a new bike.
Good luck
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Old 08-16-09, 05:37 AM   #15
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Shaft drive bikes are a pita.
And chains aren't?? The only difference is that we already know how to deal with chains, so we put up with all that messy maintenance ...
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Old 08-16-09, 08:19 AM   #16
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Old 08-16-09, 09:06 AM   #17
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And chains aren't?? The only difference is that we already know how to deal with chains, so we put up with all that messy maintenance ...
This is actually a good response! But I'd like to know the ratio of chainless bike repairs vs chain bikes that would make it profitable enough to have your employees trained and to keep parts on hand for these type of bikes. It would be a great service to be able to offer this but are there enough of these bikes around to support it? (Not challenging you but just wondering from a business point of view)
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Old 08-16-09, 09:10 AM   #18
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Is it the blue piece? It sits just in front of the chain so it can't come off? Do you use one or is this just a random bike pic?
I don't use one, this is a random pic that I googled. Yes it is the blue piece that sits there to avoid the chain from falling off. But with a finely adjusted der you really shouldn't need one. None of my bikes have one. And two of them I ride kind of rough. Never had a chain jump.
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Old 08-16-09, 09:34 AM   #19
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I've never seen these bikes around, and I doubt any bike shops around here would offer to service the shaft drive. That's a real problem, of course.

But I bet, if shaft bikes were more widespread, every kids' bike and every family bike would be shaft driven. With higher production and more efficient shafts, most bikes would have them. Chain drives would be left to performance bikers, like clipless pedals and drop handlebars.
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Old 08-16-09, 09:40 AM   #20
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I have drop bars and clipless pedals and believe you me, I am in no way a performance biker!!

Now I'm wondering (other than it being a service issue) why these bikes are not catching on so much.
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Old 08-16-09, 10:10 AM   #21
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I bet the single most important reason is that chains are good enough. And when what we've already got is good enough, it takes a lot to change it.

(When I said "performance biker", I meant it in a wide sense. When we go for clipless pedals, we trade a bit of convenience ("use any shoes") for a little performance.)
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Old 08-16-09, 12:26 PM   #22
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This is actually a good response! But I'd like to know the ratio of chainless bike repairs vs chain bikes that would make it profitable enough to have your employees trained and to keep parts on hand for these type of bikes. It would be a great service to be able to offer this but are there enough of these bikes around to support it? (Not challenging you but just wondering from a business point of view)
If you mean shaft drive when you say chainless: There are so few shaft drive bikes that whatever numbers you come up would be statistically invalid.

As suggested earlier, internally geared hubs make much more sense than shaft drive.
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Old 08-16-09, 01:18 PM   #23
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Shaft driven bicycles are not a new thing and were made as far back as 1900 and there are a few examples in between now and then where folks tried to make this work (and failed) and of them all Dynamic is probably the best.

But they have some shortcomings that prevent them from being universally popular and suitable for a wide range of duties.

I have serviced a Dynamic and did not find it to be inordinately difficult and had to service the same bike repeatedly as the drive kept getting knocked out of alignment (bending) and this resulted in several shaft failures.

The bike was getting used for commuting and the owner was a young and very strong guy... the bike could not stand up to the torque he put into things.

We modified the frame to offer better support to the drive and wrote to Dynamic and hope they have used this feedback to improve the product they offer.

The lateral stresses caused by the use of a shaft drive can cause frame failure and with a bike that undergoes such a heavy and repeated stress cycle, aluminium would not be my material of choice. This type of drive is just not that well suited for a conventional bicycle frame.

These bikes are stiff and heavy and after another drive failure my friend repaired and sold his bike being very clear that the bike would be fine for light duty usage.

A better solution would be to use an internal gear hub and a fully enclosed chain case... and perhaps a belt drive.

That would solve the greasy leg issue, protect the drive, and provide a system that would be good for tens of thousands of miles with very little service.
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Old 08-16-09, 02:03 PM   #24
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I should add that I really like the idea of the shaft driven bicycle for utilitarian riding and perhaps new technologies and better materials and design could improve them.

Having ridden them I can say that the drive is extremely smooth and if this could be combined with a more solid design and a better ride I could see myself owning one.
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Old 08-16-09, 02:53 PM   #25
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Biomega Copenhagen, Amsterdam and Bamboo are all shaft driven bikes. They have sold them for some years now so I thnk they would be gone by now if they did not work ok. Dd not try one, did not read much about them but here is the link.

http://www.biomega.dk/biomega.aspx
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