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I need a 32h dynamo hub for a 700c wheel with a skewer, I'm thinking shimano. I'm seeing many models, and don't know the differences in them. What would work, and what's the differences.

dabac

Dynohubs isn’t my strongest suite, but I believe Shimano comes in both nutted and q/r axle. I think there’s also a roller brake/dyno combo. I am not aware of any disc brake/dyno combo.
I have an idea that there is a smaller/lighter model with a slightly lower electrical output as well.
I have not payed any attention to hole counts. If I wanted a dynohub I’d probably simply suck it up and buy an appropriate rim.
If I already had a rim I really, really wanted to use that didn’t match the available drillings I’d consider creative lacing. Unless you use a front hub brake the wheel will most likely survive a radial lace. And leaving some holes empty in the hub is no big deal.

znomit

Here you go.
Shimano DH-3N80

https://www.rosebikes.com/article/sh...amo/aid:489153

noglider 

You have the rim already and will build the wheel? Or do you want a wheel built with a dynamo hub?

Some hubs have solid axles with nuts to attach the wheel to the fork. Others have a quick release skewer. Some hubs are ready for a disc brake, and others are not.

Electrical output from these hubs are all about the same.

Shimano is one of the most popular hubs of this type. For the money, it gives you a reasonable amount of friction (more is worse). SP are more expensive and smaller and lighter and offer less friction. Schmidt are even more so than the SP, in all of these parameters. The Sanyo hub costs less and makes a little more friction, but they're actually fine. I have two of them, and they're working just fine for me.

Isn't it odd that all makers of dynamo hubs have names that begin with 'S'?

unterhausen

what is your priority, drag, or cost?

I have never had any problems with Shimano hubs, but nowadays I usually buy SP. Little bit lower drag at about the same price. And they have models that Shimano doesn't offer, such as through axle.

Note that there are lower power output Shimano hubs. Since they are low-end hubs, they don't offer any reduction in drag. I don't see any reason to get one unless it's free, since there is a low-end Shimano hub that is full power.

fietsbob

A built wheel, machine assisted, can be bought for a price not far off the cost of the hub as a separate piece..


Rotational magnetic pulses are not really felt riding the bike, but seem significant wheel held in your hand.
its just the way it makes the power

I have come to prefer the solid spade connection of the German hubs vs the Asian folded bare wire plugs .





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Aushiker

Both SON and SP do them; i have two in fact ...

zacster

While I wouldn't say it is a significant amount of power, I can feel the difference between lights on and lights off, especially full lights on vs. off. When I need the full lights though it isn't an option to turn it off of course, but I frequently shut the daytime lights off even though they don't take quite as much power. If you ask me they are pretty ineffective anyway.

rifraf

I have Son28 dyno-hubs x2
One 6 bolt disk and the other Centrelock disk brake.
Wanting strength in the 29er 700c wheels, I opted for 36 spoke options but other lesser counts were available.

In the Schmidts/Son brand dynamo hubs it is the SonDelux that is as you describe above

Another brand Shutter Precision (SP) has its own versions as per Aushikers post.

DiegoFrogs

A drilling of 32 holes should not be a problem. That's very common in front wheels.

I have a Sanyo/Panasonic that I bought in a $99 shipped 700c wheel from E-bay about 5 years ago now. It still does its job. This one is rated at a full 3.0 watts, which you need if you want to run front and rear lights.

About 4 years ago, after I moved to Europe, I bought a ~$60 700c wheel with a 2.4 watt Shimano hub, which should only be used with a headlight. It has been fine, too. Every 2 years I change the batteries in my taillight. Even here in dark Sweden I'm not riding much after dark these days since I now have a one-hour train commute to work.

fietsbob

yea, have 3 32 hole hubs , Schmidt , 1_6 hole disc, 1 center lock & 1 w/o disc mount ..

+ (28) a DB radially spoked brompton-schmidt wheel, & a shimano-brompton wheel ..

I got the new XS wheel when the Shimano one became unreliable..





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