Bosch Performance CX (Gen 4) Lock Ring Kit
Bosch Performance CX (Gen 4) Lock Ring Kit is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Shipping calculated at checkout.
Bikes from our warehouse take a little longer to arrive and we test them before dispatch to make sure they're super ready-to-ride when they arrive.
Hand picked and we know them inside out
01828 920055
Description
Description
This is the Lock Ring and O-ring kit to hold the front chainring and/or spider onto the motor drive pinion on the Bosch Gen 4 Drive Unit (BDU4XX)
Substantially tougher than the plastic nuts, although be careful not to cross thread the nut on the drive unit assembly.
PLEASE NOTE: If you have a Bosch Classic +, Active Plus or Performance system (Featuring a small sprocket on the front), you will require a different lockring.
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