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For a heavy rigid vehicle whose rear-most axle is a non-steering axle, the maximum rear overhang permitted including its load is the lesser of:
對於最後一根車軸為非轉向軸的重型剛性車輛，其連同貨物的最大允許後懸長度，應取以下哪組數值中的較小值？
For the heavy rigid vehicle described, maximum rear overhang is the lesser of 4 metres and 70% of the wheelbase.
最後軸為非轉向軸的標準重型剛性車輛，後懸不得超過4米與軸距70%中的較小值。
閱讀相關知識
Measure from the rear axis to the back of the vehicle or load, whichever is further back. Both limits apply; you cannot choose the larger figure.
後懸從後軸基準線量至車輛或貨物最後端；必須同時滿足兩項，不能自行選用較大值。