I thought about it, but was concerned about their longevity when ridden hard off-road (Nick's going well to prove that this may be unfounded) and that I'd be going too slowly to generate much power for anything else other than lights.
I'm living in pretty sunny territory, so have opted for Solar for the next big trip.
A good point that the slower speed of a fat bike particulary when snow/extreme terrain is unlikely to see the benefit of a dynamo hub
I would see the dynamo advantageous if you were using a fatty for adventure long distance touring which would then make sense to compliment it with a geared hub like a rohloff
so for everyday riding I wouldn't buy one, for a tour I'd at least consider one
If you made a custom 35mm adapter (like the Mukluk one, for specific for the front fork you were using), you could do it. Seems better to make a 135 dynamo though
I am patiently waiting. I understand the son works down to 2-3 mph? It makes absolute sense to me.
My SON28 on my big dummy with an edulux works at walking pace but it flickers and isn't at anywhere near 100%... but there is enough light for walking.
That is on a 26" hookworm (2.5")... dunno how that'd translate to fatbike/29er wheel...
I have just installed The Plug II+ on my Fargo. It works pretty good at 8mph+ on my 2.35 Big Apples. I know the 'plus' is some inline circuit that helps boost the amperage at lower speed.
Hopefully someone will correct me if I am wrong about dynamo lights, but I think a light/hub combo for running at night in the winter would need to take into account at 30"+ total diameter wheel (my Bud on Clownshoe is a tall tire). Maybe the circuit would need to include an amperage booster like my Fargo setup. Also having a standlight or single bulb mode could help when things get slow on climbs and deep snow. Then it would kick into high/multi-light when speed comes up to avoid over riding the light.
I’d consider buying one if I knew for sure that they could handle the rigors of technical trail riding (rocky/rooty/bumpy/loose/fast/catchin’ air/hard landings/muddy swamplike conditions/etc.).
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I've wondered about these myself:
Do they give much resistance?
How about extreme cold weather?
Durability?
Reliability?
135mm with disc brake?
How much light can they push?
yes. granted it generated sufficient energy at slow speeds. Especially up here in Alaska when my late morning and early afternoon rides are dark as night
A good point that the slower speed of a fat bike particulary when snow/extreme terrain is unlikely to see the benefit of a dynamo hub
I would see the dynamo advantageous if you were using a fatty for adventure long distance touring which would then make sense to compliment it with a geared hub like a rohloff
so for everyday riding I wouldn't buy one, for a tour I'd at least consider one
My bike-based power 'reckoning' has been exactly for expedition use, and the trip I'm planning for is in the West Australian desert with no lack of rays! (and the bike does have a Rohloff). I'm after power for camera batteries, GPS and lights for pre-dawn and post-dusk riding. There may be day-time rest periods where Solar will be more use.
I can see myself trying hub-power out in the future, but for this trip there are no mechanical back-ups, so the reliability uncertainty and slow-speed problem won.
I used mine (SONx2) on my fatties in Bethel Alaska, year round, extreme cold (-40f), mud, rain, dust, sideways snow...the bikes lived outside (no room in the apt)...no maintenance, no problem...took a licken, still ticken...
A good point that the slower speed of a fat bike particulary when snow/extreme terrain is unlikely to see the benefit of a dynamo hub
I would see the dynamo advantageous if you were using a fatty for adventure long distance touring which would then make sense to compliment it with a geared hub like a rohloff
so for everyday riding I wouldn't buy one, for a tour I'd at least consider one
I have never had any light issues at anything above 5mph in two winters with my dyno hub.
I’d consider buying one if I knew for sure that they could handle the rigors of technical trail riding (rocky/rooty/bumpy/loose/fast/catchin’ air/hard landings/muddy swamplike conditions/etc.).
I have done some moderate technical stuff with them 4 or 5 times. No problems so far.
Anybody have a feel for whats going on inside something like the Shutter Precision Dynamo hub ?? Wonder if its possible to cut and sleeve it out to 135mm ... I am up for having a go .. or at least giving a hub to a friend that has cnc lathes etc required for such a task.
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Still need to get bushes to fit the hub (100mm) to my German A Flame fork (110mm)
Originally Posted by ktronik
