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Just reading in the background. No experience yet with the 900 r ( waiting for my mach still) thanks for everyone's updates and test. We'll one positive thing. Atleast with all the Mach sales we proved to brp that there is indeed a market for hyper sled. Even if only released ever few years. My guess is they will release a new mach at the end of every new chassis.
 

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My mach ran 8000 ish plus or minus basically out of the box. 200 km on it running 8000 rpm it ran 186. 450 km on its running 180 at 7800. Today tried to change to a 531 belt and it's worse in better condition 7600 rpm but still 180. Hit 180 pretty easy then flat. Any thoughts? Or stop thinking about it till i put a few more km on?


What belt should I be using stock or 531?
 
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