Crank arm length on 2018 stache 7 professional#

The difference between the first and second measurements in their respective ‘X and Y’ coordinates is your stack and reach.

Two measurements.įrame stack and reach, handlebar stack and reach, or even elbow pad stack and reach come from two additional measurements. The first step is to determine your bottom bracket location in the vertical and horizontal. But is it really complicated? I’d argue that it’s no less confusing than T-shirt sizing for a bike, but more on that shortly.ĭo you really need special tools for determining stack and reach? No, you need a tape measure and a wall (preferably a square wall). It is true, stack and reach forces an entirely new batch of numbers on us.

Technically, you can measure to any feature, but for the sake of being relevant, those three are by far the most common locations. These values can be calculated to the center-top of the steerer tube, the center of a handlebar, or the rear edge of an elbow pad. Stack and reach is essentially any point on the bike, relative to the bottom bracket, measured against true horizontal (x) and vertical (y). The measurements are relevant to the horizontal and the vertical, neither of which are typically present in bike design. It is, for all intents and purposes, ‘outside’ the system. Stack and reach is a system of absolute measurement. This schematic makes the process pretty straightforward - four measurements can give you frame, handelbar or elbow pad stack and reach numbers Thomas McDaniel / Immediate Media Furthermore, it’s unaffected by anything an industrial designer can influence. There is nothing proprietary about frame stack and reach, except the actual measurement, of course. Not to mention the variation of measuring that theoretical top tube.ĭon’t believe me? Pick five random brands and look at their geo drawings and it quickly becomes apparent how ‘proprietary’ measurements have become. What about offset seat tubes? How does a ‘corrected’ top tube measurement take that in to account? Simple, it doesn’t. “Fake news - there’s ‘horizontal’ top tube,” the crowd retorts. Ironically, if you asked a modern frame builder to create a new bike for you, they’d likely first ask for your stack and reach. The reality is this: with modern carbon designs, the top tube has been a misleading measurement since the first signs of sloping tubes.

Crank arm length on 2018 stache 7 professional#

database of bike measurements that may or may not have fit professional riders (and thus was only applicable to professional cyclists). It quickly becomes apparent how ‘proprietary’ measurements have becomeĪll this was largely an artifact of Italian designs and several archaic seat height methodologies, some based on the C.O.N.I.