The Promax CK-1 Carbon Crankset is a top - notch product. With a 175mm 2 - piece design and a 30mm chromoly spindle, it offers high stiffness and efficient power transfer. The race - ready carbon crank arms are both lightweight and extremely strong, perfect for BMX riders. It's designed for SRAM 3 - Bolt chainrings (bolts sold separately, SKU CK2203 recommended) and is also compatible with a Promax 4 - Bolt 104BCD Spider/Adapter (sold separately). Pedal washers are included and required, while the bottom bracket is sold separately. Available in a sleek black color, this crankset maximizes performance with minimal weight.


Using the Promax CK - 1 Carbon Crankset is easy. First, make sure you have the right chainring bolts (SKU CK2203 is recommended). Install the crank arms on the 30mm spindle. Remember to use the included pedal washers when attaching the pedals. For chainring installation, if you're using the direct - mount SRAM 3 - Bolt style, it'll save you some weight. Or you can use the separately - sold Promax 4 - Bolt 104BCD Spider/Adapter. Don't forget that the bottom bracket is sold separately and needs to be installed properly. When it comes to maintenance, keep the crankset clean. After riding in wet or dirty conditions, wash it gently with mild soap and water. Check the bolts regularly to make sure they're tightened. Avoid using excessive force when pedaling, as this could damage the lightweight carbon arms. If you notice any unusual noises or looseness, stop using it and check for issues right away.