KMB started to withdraw its 2-axle Metrobuses in 1997. Some of them had their chassis damaged due to the fatigue caused during their service on the Tai Mo Shan KMB Route 51, which climbed to the highest altitude achievable by buses in Hong Kong. These were withdrawn by 2003. The 11-metre 3-axle Metrobuses in KMB were not withdrawn until summer 2002. KCRC also started to withdraw their Mark II Metrobuses in the early 2000s. The last 2-axle Metrobus in Hong Kong (KCRC 134) was withdrawn in October 2005.