Tell me why I should stick to OTK vs BIREL ART; Rotax max sr

I wondered if extra body/muscle weight could somehow cause great upper body fatigue. When I was light and not bulky I had less issues.

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Is there a possibility to test an birel kart on the track and se how it feels. I drive praga now but i have tested an otk. And a birel and i liked the praga one more beacuse i was beliving it has more grip on the rear end. But its all preference…

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yes! I did that birel braking system felt better to me and the kart felt lighter to handle in general!

Non related… but how long does an engine stay turned on/in use per race (2-3h ??)

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Typical club race? Maybe 20 minutes?

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