BT Moto Head Studs for BMW S1000RR (2019)
The 2019 BMW S1000RR introduced a 999cc inline-4 engine bt-moto-head-stu…bmw-s1000rr-2019/ featuring BMW’s ShiftCam technology, enhancing throttle response and broadening the torque curve. However, this advancement also increased the engine’s performance demands. To ensure engine reliability under these heightened stresses, BT Moto offers performance head studs designed to enhance clamping force and prevent common issues associated with OEM fasteners.
Understanding the Need for Upgraded Head Studs
BMW’s original equipment manufacturer (OEM) head bolts are torque-to-yield (TTY) fasteners, meaning they are designed for single-use and stretch under torque. This design can lead to issues such as head lifting and gasket failure, especially under high-performance conditions like racing or aggressive riding. The BT Moto head stud kit provides a solution by offering reusable, high-strength fasteners that maintain consistent clamping force, thereby enhancing engine reliability.
Key Features of BT Moto Head Studs
High-Quality Materials
The BT Moto head stud kit utilizes ARP (Automotive Racing Products) fasteners, known for their superior strength and durability. ARP materials, such as ARP 2000 and L19, offer tensile strengths up to 220,000 psi and 260,000 psi, respectively, ensuring the studs can withstand the high stresses of performance riding.
Reusable Design
Unlike OEM TTY bolts, ARP head studs are designed for reuse. This feature allows for multiple engine disassemblies without compromising the integrity of the fasteners, making them cost-effective in the long term.
Enhanced Clamping Force
The precision-engineered studs and parallel-ground washers ensure even distribution of clamping force across the cylinder head. This uniform pressure reduces the risk of head lifting and gasket failure, maintaining optimal engine sealing under high loads.
Compatibility
The BT Moto head stud kit is specifically designed for the 2010–2019 BMW S1000RR models, including the 2019 variant. This ensures a precise fit and optimal performance, aligning with the engine’s specifications.
Installation Considerations
Installing the BT Moto head stud kit requires careful attention to detail:
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Thread Preparation: Clean all threads in the engine block to ensure proper engagement of the studs.
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Lubrication: Apply ARP Ultra-Torque Fastener Assembly Lubricant to the studs, nuts, and washers to achieve accurate torque readings and prevent galling.
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Torque Sequence: Follow the recommended torque sequence and specifications provided by ARP to achieve uniform clamping force.
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Re-Torquing: After the engine has completed a full heat cycle, re-torque the head studs to the specified values to account for any settling of the components.
It’s advisable to consult with a professional mechanic experienced with BMW motorcycles to ensure proper installation.
Performance Benefits
Upgrading to the BT Moto head stud kit offers several performance advantages:
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Improved Engine Sealing: The enhanced clamping force maintains a secure seal between the cylinder head and block, preventing leaks and maintaining compression.
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Increased Durability: The high-strength materials and reusable design contribute to the longevity of the engine components, reducing the frequency of maintenance.
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Enhanced Performance: With a secure and consistent seal, the engine can operate at higher performance levels without the risk of gasket failure or loss of compression.
Alternative Head Stud Options
While the BT Moto head stud kit is a popular choice, other options are available:
ARP Head Stud Kit (Part No. 201-4306)
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Compatibility: Designed for BMW S1000RR models.
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Material: ARP 2000 steel alloy, offering a tensile strength of up to 220,000 psi.
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Features: Includes 12-point nuts and parallel-ground washers for even clamping force distribution.
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Price: Approximately $315.22.
Pro-Bolt Titanium Engine Bolt Kit
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Compatibility: Suitable for 2019–2021 BMW S1000RR models.
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Material: Grade 5 titanium, approximately 42% lighter than stainless steel.
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Features: Includes bolts for side engine casings, clutch covers, water pump housing, and alternator cover.
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Price: Approximately $310.50.
Conclusion
For riders seeking to enhance the reliability and performance of their 2019 BMW S1000RR, the BT Moto head stud kit offers a high-quality solution. By replacing the OEM TTY bolts with ARP’s high-strength, reusable studs, riders can ensure consistent engine sealing and durability under high-performance conditions. Proper installation and maintenance of these components can lead to improved engine performance and longevity.












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