Type Options: #1 Black 259mm, #2 White 259mm, #3 Blue 259mm, #4 Gold 259mm, #5 Black 261mm, #6 White 261mm, #7 Blue 261mm, #8 Red 261mm. Length: 259mm, 261mm Weight: Approx. The bike spokes are made of high quality #45 steel, sturdy and durable.