The KMC sprocket 38T/47mm 11/128 bunch is a high-quality chainring for Bosch 4 Systems. It is made of durable 7050 aluminum alloy and has a black chromolic treatment. This chainring is specially designed for electric bicycles and has 38 teeth. With a chainline of 47.5mm, it ensures a smooth and efficient transfer of power. The KMC chainring is compatible with Bosch Gen 4 systems and offers reliable performance for an optimal cycling experience. Product specifications - Size: 1/2" X 11/128" - Treatment: Chromolic Black - Brand: KMC - Model: BOSCH - Type: GEN 4 - Material: 7050 alloy - Material type: Aluminum - Bicycle type: Electric bicycle - Number of teeth: 38 - Color: Black - Article number: BFCB44738 - EAN: 8719189051940 - Primary base color: Black - Receipt description: Chainring KMC Bosch