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3

I was going to boldly say "no-one has made a rear hub dynamo" but then I did a google search and I'm glad I didn't say that, because I would have been wrong. Shimano make the FH-C810 which despite the FH suggesting "front hub" is actually short for "freehub". In full it's the "Shimano Nexave Di2 FH-C810" (page via searching their site for the short code). ...


4

My expectation with this design is that you'll be able to carry 15-25kg over a fairly rough track, if you built it reasonably well. Use the heaviest bike you can find as the donor, you want nice thick tubes. But it will probably fail by bending close to one of the joints. Bike tubing is not really designed to deal with bending. With the design sketched I ...


2

Wait for Moz' answer because he's build a lot of trailers. The bigger the wheel, the better the trailer will roll over stuff. That is, a 16" wheel would hook up on a pothole that a 20" would just bounce heavily through, and a 26" wheel would take it in stride. Assuming the wheel mounts direct to the trailer chassis, a 26" wheel bike would give you a level ...


0

your trailer design will be affected by wheel size. with a larger wheel, your load will be higher off the ground, but you'll suffer from increased weight, overall drag, and depending on design, varying degrees of wheel flop. i would go with a 20" wheel size due to readily available high quality tires/rims from recumbents and bmx. in addition, you'd could ...


1

My first thought was just to pile them all onto a roof rack. Even with a smallish car you should be able to get a platform rack that will take two trikes, one facing forward and one backward. Then stack the third (smallest) trike on top of the rear-facing trike. That will likely put the highest point of the trike more than a metre above the roof of the car, ...



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