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Honda ST90 1973-75

1973
1975
The ST90 is a great little bike and a nice step up in size from a CT70.  The larger wheels make it more stable at high speeds.  The weakness of these bikes is the 3-speed transmission.  The gear ratio from 2nd to 3rd is too large and first gear typically fails at around 3000-4000 miles.

The S90, SL90 and CL90 engine will bolt into the ST90 frame and they have a 4 speed transmission and manual clutch. 

 

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