The future of virtual shifting! The Cycplus BC2 Virtual Shifter enables better indoor training through integration with the Cycplus app. Faster and smoother shifting, without interruptions, without the hassle of mechanical adjustments. For an optimal experience, place the chain on the large front chainring and the middle of the rear cassette to maintain a straighter chain line and reduce wear. Virtual shifting is temporarily disabled in ERG mode. It allows for up to 60 resistance levels for personalized training. With virtual shifting, low power loss is maintained during training. Features a Type-C charging port; charges in 2 hours, allowing for 350 hours of operation, enough for 6 months. It automatically turns off after 30 minutes of inactivity. Compact and lightweight, only 7 grams! Includes three different sized strings for flexible mounting. Compatible exclusively with Cycplus T2 and T3 Rollers. Ensure your roller is updated with the latest firmware to enable virtual shifting.