BSP does some cool technology like this: https://www.boxstockproject.com/index.php?l=product_detail&p=290 it's a cast aluminum rod that they heat treat to a T6 temper, it has been empirically proven to be good up to at least 6,000 RPM for $15 instead of buying a billet road for $50. They also got the cost of a 10,000 rpm rated flywheel down to $40. so if your kid wants to race karts or make a fast minibike these guys made it economical, and i do not own stock in BSP!
6000 RPM built in rev limiter and steel forged crank w/ dual ball bearings is nice.
Only thing I do not see highlighted in specs is ungraded flywheel?
Pretty cool that you can get a modded factory motor.
Will they offer ext warranty?
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