SONA Cut bicycle chainwheel and crank, model SC-CW-105, with the SONA name cut into the chainring web, for bicycles. The chainwheel drives the bicycle chain as the rider pedals, and the crank arm carries the pedal at its outer end. Around the hub, the SONA lettering and curved cut-outs form an open decorative web inside the ring of teeth, and the set has a silver finish. It comes in 40T, 44T and 48T sizes. The crank is made in the size to order, and the finish is BCP or black.