Moose Offroad 1211-BET-41-13 Red 41T Aluminum Rear Sprocket — 2013-2025 Beta RR / RS

Moose Offroad — Aerospace-Grade 7075 T651 Aluminum, CNC Machined Precision, and Performance Red Anodization

Enhance your machine's acceleration and suspension response by reducing unsprung weight with the Moose Offroad 1211-BET-41-13 Rear Aluminum Sprocket. Specifically engineered for the Beta RR and RS 2-stroke and 4-stroke lineup, this 41-tooth sprocket is designed for riders seeking a high-speed gearing setup or improved highway cruising for dual-sport applications. By utilizing premium 7075 T651 aluminum, Moose Offroad provides a sprocket that is significantly lighter than steel, allowing your rear suspension to react faster to technical terrain.

Every Moose Offroad sprocket is 100% CNC-machined, ensuring a perfectly concentric part that eliminates the tight spots and drivetrain vibrations common in stamped alternatives. The T651 tempering process adds an extra layer of structural stability, resulting in an optimal thickness that resists distortion better than standard T6 aluminum. This precision-cut tooth profile maximizes contact with the 520 chain, distributing torque evenly to extend the life of your drivetrain. Finished in a vibrant, UV-resistant Red anodization, it delivers a professional "Works" look that lasts.

• 7075 T651 Aluminum: Extra-tempered aerospace alloy provides superior strength-to-weight ratio and reduced distortion.
• 100% CNC Machined: No stamping or grinding; precision-machined for perfect alignment and smooth power delivery.
• 41-Tooth Gearing: A taller gear ratio ideal for high-speed desert racing, adventure touring, or dual-sport road sections.
• Maximum Chain Contact: Optimized tooth thickness ensures a secure, full-surface interface with 520 drive chains.
• Anodized Red Finish: Durable, high-quality coating protects against corrosion and provides a factory-racing aesthetic.

Moto-House MX Pro Tip:

A 41-tooth rear sprocket is a "tall" gearing choice that is excellent for reducing engine RPMs at cruising speeds. When installing the Moose Offroad 1211-BET-41-13, we recommend installing a fresh 520 X-ring or O-ring chain at the same time. Running a worn chain on a high-performance aluminum sprocket will lead to premature "hooking" of the teeth. For maximum security, use new sprocket bolts and apply medium-strength thread locker to the threads before tightening to factory torque specifications.

Technical Specification	Details
Tooth Count	41
Chain Size	520
Material	7075 T651 Aluminum
Color / Finish	Anodized Red

FAQ Questions

Q) Will this fit the 2025 Beta RR models?
A) Yes, this sprocket uses the standard Beta 6-bolt hub pattern and is verified for all RR and RS models up to 2025.

Q) Why should I choose 41 teeth?
A) A 41T sprocket is significantly smaller than the standard 48T or 50T rear sprockets. It is best used for riders who want higher top-end speeds and a more relaxed engine feel at high cruising speeds.

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