The Garmin Vector Pedal Pod will keep you riding strong. Don't let pedal issues keep you from training and racing. The direct replacement Vector Pedal Pod from Garmin will keep your performance on track. Replace individually or together, and on either pedal...left or right. The pedal pod comes in two different sizes and fits almost any bike. The standard fits 12-15mm thick crank arms x 38mm width, and the large fits 15-18mm thick crank arms x 44mm width. Sold individually, the Garmin Vector Pedal Pod will keep you going strong from start to finish .