Is it really necessary to conform to traditional crank arm lengths when setting up a Raleigh Tekoa 3.0, or can shorter or longer arms actually provide a performance advantage for certain riders? Ive seen many threads where enthusiasts and even some experts swear by the 175mm or 172.5mm crank arms as the ideal length, but what about the outliers - those who ride with 180mm or even 165mm arms? Do the benefits of a more aggressive or upright riding position outweigh the potential drawbacks, and are there any real-world tests or studies that support or refute the idea that traditional crank arm lengths are the only way to go? Furthermore, how do factors such as rider height, inseam, and pedaling style come into play when determining the ideal crank arm length, and should we be considering a more nuanced approach to crank arm selection rather than simply defaulting to the standard lengths?