Wanderer
XS650 Member
Hello fellow XS enthusiasts. I have a 1977 XS650, and I noticed that my speedometer seemed to be reading about 10 mph slower than actual speed at 60 mph. I verified this with the help of my phone's GPS. I tested the speedometer gear ratio and it turns out to be 2.75:1. What is the correct ratio for this model year? I guess I'll need a new speedometer gear in the correct ratio or my problem runs deeper and involves the speedometer itself. Were there variations in the ratios between different models? Perhaps the PO installed an incorrect part. Thanks in advance for your help. Mark
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