KMC Chainring 38T 50.0 Bosch Gen 4 NS

Unleash Peak E-Mobility Performance with Precision Engineering.

Struggling with inefficient power transfer and rapid battery drain? The KMC kettingblad 38t 50.0 Bosch Gen 4 NS delivers unmatched durability and optimal chain alignment to maximize your e-bike’s efficiency. Crafted from hardened Chromoly steel and engineered specifically for Bosch Gen 4 systems, it eliminates power loss and extends battery life. Say goodbye to compatibility issues with a chainring perfectly tuned for KMC e-series chains, ensuring smooth, reliable rides every time.

Key Features

• Super Narrow 38T chainring designed for Bosch Gen 4 e-bike systems.
• Direct mount design with 7.0 mm offset for precise chainline alignment.
• Hardened Chromoly steel construction for superior strength and longevity.
• Optimized chainline of 50.0 mm to reduce drivetrain friction and wear.
• Seamless compatibility with KMC e1, e8, e9, e10, e11, and e12 chains.
• Battery-saving efficiency through enhanced power transfer.
• Sleek black finish for a modern, stealthy look.

Technical Specifications

• Model: Bosch Gen 4 Super Narrow 38T chainring without spacer.
• Chainline: 50.0 mm.
• Material: Hardened Chromoly steel.
• Compatibility: Bosch Gen 4 systems.
• Mounting: Direct mount with 7.0 mm offset.
• Chain compatibility: KMC e1 / e8 / e9 / e10 / e11 / e12 chains.
• Article number: BCRB4RL15238S3.
• Size: 1/2″ x 11/128″.
• Color: Black.

Frequently Asked Questions