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