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Old 10-23-2016, 01:53 PM   #9
rtking   rtking is offline
 
Join Date: Sep 2014
Location: Orange County, CA
Posts: 410
Thanks Calcune.

To my eye, that looks like an RX3. The exhaust on the RX4 exits at an angle (instead of directly forward) and the photos of the other prototype bikes that Blackbike posted show the RX4 exhaust routing under and behind the oil pan before swooping up to the muffler. But that's just my guess.


 
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