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Bosch Chainring Spider (Boost) Gen 4 Performance CX

£29.99 In Stock
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This spider mount sits between the Gen 4 CX Bosch drive unit and the outer 4 bolt chainring. Compatible with the Bosch Gen 4 Performance line CX. This is the offset 'Boost' version. If you need the 'Non-Boost' version click here.

Allows the motor to take a standard 104 BCD chainring. Chainring bolts not included. 

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