Fuck Cars
A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
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You have to put it into context: these bikes are going to some of the most remote, poor parts of the world. How many belt drive dealers would someone run across in that situation?
And even if they last 30,000 km, what happens when they finally do need to be replaced? You need a split frame, which this particular bike can't do without madding massive costs and introducing more things to break.
A single speed bike chain is very easy to find, dirty cheap, and last a very respectable amount of time.
The people using these bikes are in a "if it isn't broke, don't fix it" situation, and the previous model of this bike (true single speed) was working great for them. This very simple upgrade gives them a considerable amount of versatility.
Adding one more gear to a single speed belt drive bike would just make these unaffordable for the charity giving them to these people. And it would likely leave many of them stuck once maintenance finally has to be done.
Totally fair points. But if it is supposed to be for poor areas patenting the system seems like a counter productive choice. Yes chains are cheap but so would a new manufacturing process for belt drives be. The gears for belt drive can be cast from composite plastics making them relatively cheap. Old fasion belt splicing kits exist as well and could be implemented if you really wanted to avoid the split frame or they could develop a simple split frame conversion kit where you can cut out a section and clamp it back together with a bracket. It doesn't have to as complicated as one might think. Most of the conversion kits today are expensive because they also needs to look good and fancy, but for rural areas funktion is king and it could be made much simpler with two bracket and 6 bolts clamping the frame together. I just belive that belt has a lot more potential because it is really really durable and good for harsh environments with no lubricant needed.