Customized carbon bicycle workshop bicycles are very common among cyclists https://hulkcarbonbike.webnode.jp/news/customized-carbon-bicycle-workshop-bicycles-are-very-common-among-cyclists/
Carbon fiber is an additional materials employed in these bikes https://hulkcarbonbike.webnode.jp/news/carbon-fiber-is-an-additional-materials-employed-in-these-bikes/
