Friday, April 19, 2013
Wednesday, February 27, 2013
Bicycles are a 100+ year old technology. We know that automobile and aviation engineers first tinkered on the bicycle to gain inspiration, or to use it as a stepping stones to a greater technology. Several challenges in bicycle design led to the invention of new technology that were directly transferable to other fields requiring similar solutions. The bicycle has given us the pneumatic tires, roller bearings, crank and linkage mechanisms, chain drives, advancements in metallurgy and construction and much more.
Maybe we shouldn't think that bicycle design has reached a design ceiling. There should still be a good bit of room to explore new solutions to needs and this is where brainstorming comes in. I once wrote a post about "Ideas for New Cycling Products" in 2 parts (see Part 1 and Part 2) and threw out there a dish of new and wild ideas. As long as the ground is fertile for new ideas, there is potential for a market.
One aspect of the psychological inertia to change is perhaps due to the thinking that since the bicycle is an old technology, there is no further need to re-visit old ideas. This is based on the assumption that old ideas never made it because they didn't work out or didn't sell. Take a bet. How wrong could you be?
Sunday, February 24, 2013
Apparently, shifting times differences measured with new and worn "10 speed" chains are marginally low to allow for any statistically significant conclusions. So I guess the message is don't fret unnecessarily over your chain length.
Two plots from upshifting and downshifting tests are shown below.
Speaking of chain wear, Wipperman's most conclusive test results on chain wear ranks themselves as number 1 in the list of 10 speed chains, which they attribute to their solid, no frills side plate and solid pins. Link.
Friday, January 18, 2013
I got a rare sense of actual delight that hundreds of hours of research , raising arguments and giving the elbow on this issue came to fruition. I believe that good open minded research leads you a point where you can't ignore the rest of the facts, which leads you to further reading and "finding out", which leads to more awareness.