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I guess not much, although some guys liked it, and a lot of people looked at it, seems like the Chinese sheet metal bike didn't prompt interest, ... I'll try again. For your enjoyment, another "Rat Rod" custom Ebike From Poland, by Pavik, who is also into tattoo art, this machine...

This guy talks about building and riding that rig on U-tube: The clamp on rear sprocket has been the go-to method for adding a chinese two stroke gas engine for quite some time, and I understand it is one of the most common sources of problems. I heard of a few ways to improve the...

I enjoy the 3 dimensional aspect of maneuvering a two wheeled vehicle, leaning into the turns, the synchony of man with machine. It's far and away more fun per mile than vehicles with more wheels. And there's also the fact that bicycles are the most efficient vehicles ever designed. (...

I think if I wanted to create a strong connection / terminal for wooden frame elements, I'd house them in tight fitting metal end pieces. This would prevent splitting, spread the stress of the connections, and resist rotation.

It doesn't appear to me that wires in the positions you show them, would have much effect on stiffening the structure. In a stick and wire structure, like the box kites that were early airplanes, wires are tension elements, and wood struts are compression elements. They should be placed in...

This picture was posted on an E-bike forum that I started lurking in today. I don't have any information about it, except what I can see in the picture and speculation on the other forum, but I thought it was sweet enough to want to share it here : The writing on the banner in the background...

Thank you for your offer. I think I would be interested in purchasing the two Sachs coaster brake hubs as you suggested. A Duomatic 102 would be my first choice, all things being equal, but a good working, low mileage R2110 would be better than a worn out 102. I intend to ride it. Not...

Good find! This looks like just what you are looking for. Unlacing wheels and relacing to a new rim is a tried and true method of modifying the performance of a motor. For example, to violate the software imposed speed limit, lace the motor from a smaller wheel to a larger rim. (I know this...

I guess that some of the lower end hub motors are indeed simple two terminal brushed motors. But more sophisticated bike hub motors use brushless 3 phase motors. This allows much more control, better efficiency and longer life, with no brushes to wear out. This video describes the basic...

An ad for some 116mm OLD, SA S2Cs has appeared on Ebay. https://www.ebay.com/itm/304766626452 These look to be complete in the box, with axle nuts and a 22 tooth sprocket. The price is quite a bit more than they were going for when available at online bike retailers, about $110 with tax and...

I see what you are saying, and it seems like a good possibility. The freewheel end of this MXUS XF08 does look like perhaps there is a spacer secured with a locknut. If you remove the nut and 1) the spacer is removable and 2) can be finagled over the electrical cable, and 3) the axle is...

I bought a FRONT hub motor, already built up into a 26" 559 wheel, for a vintage bike conversion project. It was 100mm OLD, requiring some fork bending, but nothing that seemed excessive to me. I didn't find any rear hub motors that were narrow enough, especially since there was no provision...

Your 2nd concept looks the best to me, in terms of strength and efficient use of material. It's similar to a couple designs that you posted for inspiration, and not dis-similar to the 4th concept image you posted. I think that the reverse bow shapes, without the "S bend" of concept 4 would...

The challenge with designing structures from wood is that they do very well handling stress along the grain, and very VERY poorly across the grain. Boat builders back in the day would spend considerable time searching for naturally occurring crooks and bends that they could use for those...

Due to the way the chelation process works, selectively making it more attractive for iron oxide to enter solution, but having no effect on base metal, I'm skeptical of the claim that Evaporust weakened the chains. Chains that were rusted badly enough to require de-rusting may well have had...

I see this seller has a few 36 hole SA S2Cs for sale: https://www.ebay.com/itm/185168081724 My machine won't tolerate the long axle, my OLD is 110 now and I prefer to not stretch that more than 6 or 7 mm. But, from the picture, I'm wondering if I couldn't remove the two spacer nuts and hack...

If you could get a matching speedo drive, I think one of these would be pretty awesome: https://www.ebay.com/itm/203672261586 Some options here: https://www.1977mopeds.com/product-p/7203.htm

Interesting idea. I really like the aesthetic of the some spoon brake designs, especially this execution in what looks to be fine quality castings on this Columbia high wheeler. Here's a design that looks to be entirely bolted on, and is cable operated. Our friend also neglected to...

Yes, and it's not just preserving the paint surface, I question whether any type of caliper brake will work with this style of clincher rims. The rim side walls are angled at around 45 degrees to the plane of the wheel. The geometry is easier to see in this picture of a similar chromed rim...

No doubt the SA AWs are reliable hubs, but, if one wants to retain their painted, old school rims, like these: Is there any way that rim brakes are an option? Then there is the issue of cables, the OP suggested they prefer a clean look with no cables. I'm no expert, but besides the issue...