[Rouge]

[Or]

[Violet]

[Blue]

[Aluminium]

[Orange]

[Noir]

The aluminium screw kits are easy to assemble, remove one screw at a time and replace it with the same Probolt length. Mainly M6 size and 5mm allen key. Aluminium screws: Probolt aluminium screws are made of 7075 aluminium, 60% lighter than originally. With 7 anodizing colours to choose from, you can really make your bike stand out from the rest. An Allen key is supplied with the aluminium engine screw kit with a copper grease tube as well as the tightening instructions.