Originally Posted by gore-tx
May be the Nexus 500 was based on the X9 but not the Nexus 300.
...This is not an opinion.
Actually, it was the Nexus 250, many years ago.
Nexus 500 and X9 only share the same engine.
The 500 has a completely different frame/suspension compared to the
250 and 300, and the X9.
The main difference between the 250 and 300 is the larger front wheel
on the 300 (15" vs 14").