Bosch BDU4XX BDU37YY BDU31YY BDU38YY Smart System Lockring

The Bosch Smart System lockring is an aluminium replacement part that secures the drive unit on compatible e-bikes. It is for you if you need to replace a worn or damaged lockring on your Bosch motor.

• Genuine Bosch replacement part for BDU4XX, BDU37YY and BDU31YY motors
• Compatible with Performance Line CX, Speed, SX and Cargo Smart System
• Also compatible with Performance Line CX, Speed and Cargo E-Bike System 2
• Lightweight aluminium, weighing just 9 g
• Check your motor: the 1270016119 O-ring is not included

Technical specifications

• Manufacturer code: EB112000JH
• Material: Aluminium
• Weight: 9 g
• Compatibility: Performance Line CX, Speed, SX and Cargo Smart System; Performance Line CX, Speed and Cargo E-Bike System 2; BDU4XX, BDU37YY, BDU31YY
• Package contents: 1 lockring; 1270016119 O-ring not included

Founded in Germany in 2009 as a start-up within the Bosch Group, Bosch eBike Systems is now based in Kusterdingen. It develops motors, batteries and on-board computers to support e-bike riders. In 2010, it presented its first electric bicycle drive system at Eurobike.