I recently built a bicycle trailer for touring etc. It has two 16" wheels. I was toying with the idea of using a hub generator for power. On my previous trailers I used an old-fashioned sidewall 12v generator. That was merely okay, but good enough to make me think about taking power generation more seriously.
Q1). So, does a hub generator exist for 16" wheels? Excluding the unaffordable Schmidts.
Q2). Would a regular hub gen. work safely and endure in a 16" wheel? I don't cycle very fast (i.e >20mph) with my trailer and that fact somewhat mitigates the typically higher r.p.m of a 16" relative to 26"/700c wheel.
Q3). I have wheel building equipment, so is there likely to be any terrible issue with building a 16" wheel around, say, a Shimano Nexus hub, given its large flange diameter? Awkward spoke lengths/angles? User rhm seems to have done this (and often gets ~15v using his/her 16" wheel!)
Shimano Hub Generator...
miniQ4). The meagre 1page tech docs on Shimano's Nexus generator site state that 'very high voltages are generated inside the generator.' Surely that's a gross exaggeration. Shimano's is nominally a 6v generator, and even without voltage regulation the V won't go sky-high, surely. I guess they're not rectified either.
I just found
which seems to suggest the Shimano NX 30 (the same a rhm's) is essentially unusable in a 16" wheel. Contradictory opinions. But then we also have
who used this hub on a recumbent without any apparent complaints...
Many thanks in advance, and apologies if this has been covered thoroughly elsewhere on this site.