Moose Offroad Spark Arrestor End Cap - 40-4021 - 2021-2024 Beta 250 RR, 300 RR, 300 RX

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.

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Features:

• USFS-approved spark arrestor for legal off-road use

• Affordable upgrade compared to full silencer replacement

• Easy-to-clean screen accessed with just two bolts

• Made in the USA for strength and reliability

• Designed for both off-road and closed-course environments

• Rugged construction built for demanding riding conditions

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Fitment List:

Beta

• 2022-2024 250 RR

• 2021-2024 300 RR

• 2021-2024 300 RR Race Edition (2021-2022 with silencer marked 04037008)

• 2021-2024 300 RX

• 2021-2024 250 RR Race Edition (2021-2022 with silencer marked 04037008)

• 2021 250 RR 2T

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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.

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