Description
The Moose Offroad Spark Arrestor End Cap 40-4021 is designed for Beta 250 RR, 300 RR, 300 RX, and Race Edition models, offering a cost-effective and performance-driven solution for riders who need spark arrestor compliance without replacing their stock silencer.
Crafted in the USA, this end cap features a screen-type spark arrestor that can be accessed with just two bolts, making maintenance quick and simple. Perfect for riders who transition between off-road and closed-course riding, the Moose 40-4021 provides versatility while keeping your bike trail-legal and compliant.
Built with durable materials to withstand demanding conditions, the Moose Offroad 40-4021 spark arrestor end cap ensures long-lasting reliability while maintaining strong throttle response and performance. It’s the ideal choice for riders who want affordable spark arrestor compliance, ease of maintenance, and proven durability.
Features:
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USFS-approved spark arrestor for legal off-road use
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Affordable upgrade compared to full silencer replacement
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Easy-to-clean screen accessed with just two bolts
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Made in the USA for strength and reliability
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Designed for both off-road and closed-course environments
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Rugged construction built for demanding riding conditions
Fitment List:
Beta
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2022-2024 250 RR
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2021-2024 300 RR
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2021-2024 300 RR Race Edition (2021-2022 with silencer marked 04037008)
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2021-2024 300 RX
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2021-2024 250 RR Race Edition (2021-2022 with silencer marked 04037008)
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2021 250 RR 2T
FAQs:
Q1: Is the Moose 40-4021 Spark Arrestor End Cap USFS approved?
Yes, it is USFS approved, making it legal for use on trails and public land.
Q2: Does this end cap affect throttle response?
No, it maintains stock performance while ensuring spark arrestor compliance.
Q3: How easy is it to service?
Very easy—the screen can be removed for cleaning or replacement by loosening just two bolts.
Equip your Beta with the Moose Offroad 40-4021 Spark Arrestor End Cap and ride with confidence knowing you have durability, safety, and compliance built in.
Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The best motocross shop in Central Florida.
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