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Why titanium? In my experience (and maybe you'll correlate), all materials involve compromise; there doesn't tend to be a case where a material is outstandingl
by SeasonalEnnui 5y ago
Why titanium?
In my experience (and maybe you'll correlate), all materials involve compromise; there doesn't tend to be a case where a material is outstandingly better in all categories.
Comparing titanium vs. the best steels, it's half the weight but also half the modulus of elasticity and half the tensile yield strength. I wouldn't expect there to be much weight advantage when comparing two tubes with roughly equal properties but maybe this is a case of "every little bit helps"?
If I remember rightly, titanium is harder to process also.
- ridehelix 5y agoThere were many reasons to choose Ti over steel, aluminum or carbon fiber. Steel would have significantly thinner wall thickness and would be less durable. Folding bikes get handled a lot, they get banged up, fall over, experience crushing forces etc. Carbon fiber is also less durable for this use case and aluminum would have been heavier for our design. Ti leaves no compromises other than cost of manufacturing but that is a great challenge to work on and there are many ways to optimize it which we are working on.
- joshlemer 5y agoNot to mention, Ti is rust proof which is great for winter climates, such as Helix's native Canada.
- Schroedingersat 5y agoWould you be open to an entry level version in steel with single speed targeting 12kg or so? This would solve many of the manufacturing and part shortage issues. Hell, I'd probably buy one without any parts which were standardized and likely to be customized anyway (saddle, brakes, bb and cranks, levers, chain, freewheel) and just move them over from a current bike.