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PB-SCLC Shell – Peripherally Belted Super Complex Laminate construction for lightweight strength
and the new rear spoiler system improves both stability and ventilation
Pre-Curved Sleeve Design – Reduces fatigue in aggressive positions
open ends for bar-end or lever-guard compatibility
high-mobility design
BT Moto Velocity Stacks – BMW M1000RR (2021–2025) Out-of-stock PB-SCLC Shell – Peripherally BeltedThe BT Moto Velocity Stacks are engineered specifically for the 20212025 BMW M1000RR, designed to optimize airflow inside the factory airbox. By reshaping and accelerating intake flow, these stacks improve throttle response, strengthen midrange performance, and deliver measurable top end horsepower gains of +510HP (depending on supporting mods). Developed to integrate seamlessly with BT Moto ECU flashes, the velocity stacks ensure maximum intake