KGW Kahaki chainring black 45 cool custom chain wheel for “one piece crank” For Chains of 1/2 x 1/8 Carbon steel Teeth: 45 (would have 45 if complete) Colour: black also availbale in stainless polished and with 39 or 42 teeth if complete Other KGW chain rings have their own item number – please search for KGW