the RS750 was a completely unrelated bike to the cx.
The first try was a cx based but it was pretty shit.
I think it won a national but probably only due to the greatness of Freddie or Bubba? googles no it was Scott Pearson.
They then built a proper race engine the problem was they never supported the rs engines later when the AMA bowed to Harley and slowed the engines with restrictor plates to favour Harleys
Honda then pulled support after they had proven it a winner
That said it had an inherent crank weakness that effected all the offset crankpin Hondas
it won a BOTT Daytona in a welsh made frame though.
Some say it was based on the 45 v XLV750R or the shadow i do not think it was, i think it was a floor up race motor that looked like the other Hondas
looking at this pic i think this theory is right as the clutch cover looked very different so i looked at both parts fiche for the VT and the XLV705R
the RS is chain drive clearly the others are Gear.
maybe this was part of the process to reverse the rotation?
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