有人實測os-99龍頭長度是正確的嗎?
怎麼我買一個120mm的量起來是130mm.... (C-C)
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文章編號：10087916
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文章編號：10088527
個人積分：4783分
文章編號：10089051
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文章編號：10092586
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文章編號：10092853
sheldon brown說:
Height / Angle / Reach
The range of handlebar positions available from a given stem depends on its height, angle and reach (extension.) Unfortunately, measurement procedures for determining these dimensions are not well standardized in the industry, making it difficult to compare one stem with another based on the dimensions.
The height dimension is normally the overall height, measured along the line of the column.
Angle / rise may be measured either from the steering axis or perpendicular to it. Thus, a stem with the extension at a right angle to the column may be described either as a 90° or 0° stem.
Reach / extension is normally measured center-to-center along the direction of the extension.
The custom of measuring reach along the line of the extension means that two stems of the same nominal reach will provide a different distance between the steering axis and the handlebar center, if they have different angles.
個人積分：4783分
文章編號：10101015
