LBS says no Dyno Hub on Disk Brake bike - Is that right?
#26
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#27
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Thanks! I didn't think that sounded right.
My problem now is that Memphis doesn't have a culture of transportation cycling, so I'm having trouble finding an LBS that can answer basic questions like this. Even if I figure out on my own which wheel/hub to order, I'm going to have a heck of a time finding a shop I trust to install it.
My problem now is that Memphis doesn't have a culture of transportation cycling, so I'm having trouble finding an LBS that can answer basic questions like this. Even if I figure out on my own which wheel/hub to order, I'm going to have a heck of a time finding a shop I trust to install it.
You might have to do some research or ask questions here, to know what you want or what's possible, but that's not surprising. There are just too many products for everyone to keep track of, and you're not the mainstream customer.
The other alternative is to do work for yourself. That might not be a bad idea, anyway, at least enough for basic work.
#28
Banned
Semantics OCD aside, I have 2 SON, 1_centerlock, [20"] and 1_6 bolt [26/700c].
work just fine, .. have for years.
centerlock on the pack-for-travel Bike Friday is perfect, take off the disc,
and pack separate from the wheel so it stays flat, when you remove the wheel.
work just fine, .. have for years.
centerlock on the pack-for-travel Bike Friday is perfect, take off the disc,
and pack separate from the wheel so it stays flat, when you remove the wheel.
Last edited by fietsbob; 01-05-14 at 11:44 AM.
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I'm considering this for some other bikes I've looked at. This particular one happened to have the right fittings on the front fork for a disk brake. It looks like a bike that can do most of what I want, so I asked about adding a dynamo and that's where the confusion started.
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psst!.... i think the post might have a generator and an alternator mixed up. along with the difference between a producer of energy and something that changes its form. in this case from kinetic energy to electrical energy. it's called a transducer, i think. but 'nuf said.
it's really not important on a bike forum, is it? really.
it's really not important on a bike forum, is it? really.
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There's nothing terribly exotic in a bike that's used for transportation, versus one that's used for anything else. So, if you can find a shop that's good with bikes, and who are interested in the project (or at least, indifferent and not actively hostile), you can tell them what you want, and they'll manage it. Installing a wheel with a disc brake and a generator is no different than installing a wheel with just disc brakes, except there's a wire that plugs in. Other things, like racks and fenders, are easy enough for someone with some mechanical ability to install, even if they've never done it before.
You might have to do some research or ask questions here, to know what you want or what's possible, but that's not surprising. There are just too many products for everyone to keep track of, and you're not the mainstream customer.
The other alternative is to do work for yourself. That might not be a bad idea, anyway, at least enough for basic work.
You might have to do some research or ask questions here, to know what you want or what's possible, but that's not surprising. There are just too many products for everyone to keep track of, and you're not the mainstream customer.
The other alternative is to do work for yourself. That might not be a bad idea, anyway, at least enough for basic work.
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I go to a great shop, and they know next to nothing about dynos. Most bike riders don't do much night riding and when they do they use battery lights. As misguided as that may seem, it's the way things work. I tried to talk them into tracking down the source of the low-cost dyno wheels that were around a few years ago, but they didn't think there was a market
#33
Banned
even if they dont think ordering wheels ahead of time, to have on spec,
surely the distributors catalogs will have them available.
Ex: handspun is the wheelbuilding division of QBP, so have them ask ..
any QBP parts combination, I suspect.
FWIW, My step through bike is a Bike Friday..
surely the distributors catalogs will have them available.
Ex: handspun is the wheelbuilding division of QBP, so have them ask ..
any QBP parts combination, I suspect.
FWIW, My step through bike is a Bike Friday..
Last edited by fietsbob; 01-05-14 at 02:13 PM.
#34
aka Phil Jungels
It appears that some great deals can be had from Taylor Wheels......................
#35
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Good point. I may be approaching this the wrong way. It may be that finding the bike I want and finding the shop I want to work with will be two separate projects. There aren't a lot of step-through steel options where I live. I like the shop that does tune-ups on my current bike, but they only sell road bikes. I'm guessing they wouldn't mind taking on the project of making modifications to a bike I bought elsewhere. I'll go in and talk to them about it soon.
#36
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I'm starting to zero in on a new commuter I think might work for me. It's the KHS Green 8 step-through frame. Here's a link to the specs: https://khsbicycles.com/bikes/2014-kh...ls/green-8-14/.
I'm trying to get away from rim brakes, and the guy at the LBS says that this bike can be equipped with a disk brake on front. Problem is, I also want dyno hub lighting. The guy at the shop says that there's no way to use a generator hub on a wheel with a disk brake. That doesn't sound right to me, but I don't know a lot about brakes or dyno hubs. So, all-knowing forum members, help me out here. Is that right, or is this guy confused?
I'm trying to get away from rim brakes, and the guy at the LBS says that this bike can be equipped with a disk brake on front. Problem is, I also want dyno hub lighting. The guy at the shop says that there's no way to use a generator hub on a wheel with a disk brake. That doesn't sound right to me, but I don't know a lot about brakes or dyno hubs. So, all-knowing forum members, help me out here. Is that right, or is this guy confused?
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#37
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There are two things about the specs that made me think it would. Under "fork" it says "full CroMO unicrown, low rider and fender bosses with Disc" and under "hub" it says "FT: Alloy QR, Disc ready." The LBS guy said that meant the front wheel could take a disk brake, but he could be wrong. What does that mean?
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full wheel
700c
front wheel dynamo (Alfine DH-S501)
disc brakes (also works with rim brakes)
€88 for the machine built and hand-trued front wheel
€20 for shipping and customs to the US from Germany
€108 total which is roughly $130 (not sure how much you're getting charged but this is a very nice off the shelf solution from a very reputable site)
https://www.bike24.de/1.php?content=8...;product=62193
700c
front wheel dynamo (Alfine DH-S501)
disc brakes (also works with rim brakes)
€88 for the machine built and hand-trued front wheel
€20 for shipping and customs to the US from Germany
€108 total which is roughly $130 (not sure how much you're getting charged but this is a very nice off the shelf solution from a very reputable site)
https://www.bike24.de/1.php?content=8...;product=62193
#39
Banned
That wheel is nice because you can run it with rim brakes OR disc brakes ... use it now with rim brakes and then save it when you upgrade to a disc-compatible fork.
Personally, I think it's excellent value and you'd fetch almost $100 on the used market in the US if you want to discard it.
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No problem.
That wheel is nice because you can run it with rim brakes OR disc brakes ... use it now with rim brakes and then save it when you upgrade to a disc-compatible fork.
Personally, I think it's excellent value and you'd fetch almost $100 on the used market in the US if you want to discard it.
That wheel is nice because you can run it with rim brakes OR disc brakes ... use it now with rim brakes and then save it when you upgrade to a disc-compatible fork.
Personally, I think it's excellent value and you'd fetch almost $100 on the used market in the US if you want to discard it.
#41
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Have fun!
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There are two things about the specs that made me think it would. Under "fork" it says "full CroMO unicrown, low rider and fender bosses with Disc" and under "hub" it says "FT: Alloy QR, Disc ready." The LBS guy said that meant the front wheel could take a disk brake, but he could be wrong. What does that mean?
Compare the tabs to this fork that isn't disc compatible
Although taken from a different angle, you can see the tabs in the first picture and you can see that they are missing in the second. Even when taken from the drive side, the disc tabs are very prominent
You may be looking at the KHS Green DLX or KHS may have changed their specification for the fork to one like the Green DLX but the picture of the linked bike doesn't have disc tabs.
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#43
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Specifications change on bicycles but the bike pictured in your link doesn't have the tabs on the left side of the fork for disc brakes. The tabs are very prominent like in this picture of a rigid fork that is disc compatible
Compare the tabs to this fork that isn't disc compatible
Although taken from a different angle, you can see the tabs in the first picture and you can see that they are missing in the second. Even when taken from the drive side, the disc tabs are very prominent
You may be looking at the KHS Green DLX or KHS may have changed their specification for the fork to one like the Green DLX but the picture of the linked bike doesn't have disc tabs.
Compare the tabs to this fork that isn't disc compatible
Although taken from a different angle, you can see the tabs in the first picture and you can see that they are missing in the second. Even when taken from the drive side, the disc tabs are very prominent
You may be looking at the KHS Green DLX or KHS may have changed their specification for the fork to one like the Green DLX but the picture of the linked bike doesn't have disc tabs.
#44
Banned
You can buy a disc dynamo hub and use it w/o the disc, until you replace the fork .
+ S-A drum brakes and the hub generator- combo can replace rim brakes, without changing the fork.
+ S-A drum brakes and the hub generator- combo can replace rim brakes, without changing the fork.
#45
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(That's why I like the one I posted!)
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Your pictures are incredibly helpful. I've never been able to figure out how to look at a fork and tell if I'm seeing disc tabs. Now I can see clearly what to look for. I'm not sure if the specs or the picture for the KHS are right. I'll have to look at the bike itself. Thank you!
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Pokin' around the Poconos A cold ride around Lake Erie
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Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
#47
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OP, I'm still not certain whether you're getting a dynamo, magneto, generator, or alternator. But it does look like you'll be getting some disc brakes. There are some hub brakes as tcs mentioned but I've not been impressed in two test rides and a bit of eavesdropping.
I suggest a single BB7 front mechanical disc. If you get the right one for the throw of your brake levers (I believe you want the BB7 Road model) then you don't need to change anything else, just the front wheel and maybe a new brake cable.
Forget about the back brake. The rim brakes are enough there, even in the wet. That will save you 50%+ on the cost (rear wheel and the second disc) and net you 99% of the stopping performance.
I suggest a single BB7 front mechanical disc. If you get the right one for the throw of your brake levers (I believe you want the BB7 Road model) then you don't need to change anything else, just the front wheel and maybe a new brake cable.
Forget about the back brake. The rim brakes are enough there, even in the wet. That will save you 50%+ on the cost (rear wheel and the second disc) and net you 99% of the stopping performance.
#48
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I suggest a single BB7 front mechanical disc. If you get the right one for the throw of your brake levers (I believe you want the BB7 Road model) then you don't need to change anything else, just the front wheel and maybe a new brake cable.
Forget about the back brake. The rim brakes are enough there, even in the wet. That will save you 50%+ on the cost (rear wheel and the second disc) and net you 99% of the stopping performance.
Forget about the back brake. The rim brakes are enough there, even in the wet. That will save you 50%+ on the cost (rear wheel and the second disc) and net you 99% of the stopping performance.
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You could get a front wheel with a dynamo and a drum brake in the front hub. It would weigh more than a disk brake, but it would offer the same advantages. Drum brakes don't care about the weather.
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