Cycling icon is included into Sport Icons. You can view all icons here:[link]
Each artistic toolbar icon is available in sizes of 16x16, 24x24, 32x32, 48x48, 128x128 and also 256x256 pixels. All images are supplied in ICO, PNG, GIF, and BMP formats. Your order will get you all icons in have 256 colors and True Color variants.
Download link: [link]