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The Shoei RF-1400 is a premium street helmet built for aerodynamic stability
Pre-Curved Sleeve Design – Ergonomic fit for riding comfort
Optic Class 1 Lenses – High optical accuracy meets racing standards
Fitment – Yamaha Models:
20ms Deployment Speed – Inflates faster than the blink of an eye
BT Moto Velocity Stacks – BMW S1000RR (2023–2025) Sidi The Shoei RF-1400 is aThe BT Moto Velocity Stacks are precision engineered to optimize airflow inside the 20232025 BMW S1000RR airbox. By smoothing and accelerating intake flow, these stacks deliver stronger midrange punch, faster throttle response, and measurable top end horsepower gains of +510HP (depending on supporting mods). Designed to work seamlessly with BT Moto ECU flashes, the velocity stacks maximize intake efficiency while retaining direct OEM fitment for