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The innovative formulation in our chain oil also uses Boron Nitride to ensure ultra low friction for ultimate drive chain efficiency
This is a cost effective cleaner for your bike or bikes
The Large Oi fits 23
Casing: Hollow pin construction
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Park Tool BBT-9 Bottom Bracket Tool 50mm The innovative formulation in ourThe BBT 9 is used to remove and install external bearing crankset bottom brackets. One end of the BBT 9 securely engages the 16 notches of bottom bracket cups. The other end of the tool engages the 8 internal splines of the crank arm adjustment cap on Shimano Hollowtech II systems. The BBT 9 fits cups and lockrings with 16 external notches and an outside diameter of approximately 44mm.
