Plus it made the bike look like a forward slanted engine motorcycle even though it had an HS40 Tecumseh. Rupp Roadster 2 are definitely stylish and sophisticated for minibikes compared to my DB30 and Arctic Cat Prowler
As Mass said... better for torque converter placement and oil distribution. it does look cool too. there's really no downside to doing it (at the time.)
The junior dragsters also do it to get a straighter shot at the back of the valve, since it is a flathead and the valves are upside down. Or right side up depending on your perspective lol
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