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Pro Circuit recommends re-packing your exhaust every 10-15 hours
A favorite among freestyle mx
Slim design to wear under or over jersey or jacket
Bike Year Pitch Part Number KXF 250 06-10 520 FXFS 24 -13 KXF 250 11-19 520 FXFS 24 -13
Boyesen Power Reed Dualstage Husqvarna Cr/Wr250 73-81, 420-430 Dual 81 Moto 8.5 Pro Circuit recommends re-packing yourOne reed petal is NOT enough! Boyesen's revolutionary dual stage reed design delivers more usable power than stock. Stock single stage reeds operate most effectively within a relatively narrow RPM range and are limited because of the single stage design. Boyesen's one soft reed on top of one firm flow through reed gives you a wide range of intake control, plus increased intake velocity. Your original reeds can't possibly duplicate that performance.
