MTB Geometry most important ones. How to change "real" reach and stack measurements

車架幾何中有兩個數據：「Reach」和「Stack」是選擇車架是否合適的重要參考依據。 REACH是測量五通中心到頭管上緣中心的水平距離。

You know how shoes and jeans vary in size between manufacturers? It's the same with bikes. A 56cm bike from one brand might fit you perfectly while a 56cm bike from another might feel way too small. A frame size used to refer to the length of the seat

公路车车架几何详解（2）堆高STACK和前伸量REACH。 车架大小怎么选_哔哩哔哩_bilibili

A complete guide to the two most important bike geometry numbers: stack and reach, including why they're important and how to get them right

如果你是个新手小白，对自行车的车架几何一无所知，不妨从最基础也是最重要的堆高（Stack）和前伸量（Reach）这两个数据入手，这两个数据会影响骑行姿势，甚至决定你能不能骑上这台车。

View the calculated Stack and Reach values needed for your frame. The graph shows a mock up of a bike frame with your calculated Stack and Reach point. The red line indicates the top of the frame's head tube, and the dashed lines show the exact Stack