Set of 4 reinforced / elongated CGN cylinder head nuts m7 thread Peugeot 103 / MBK 51 / AM6 / DERBI …

Set of 4 elongated competition cylinder head nuts, very similar to MALOSSI if not identical. These nuts allow you to take out the fins on the air cylinder head and to be able to tighten them with the flat torque wrench therefore in the absence of any friction which allows you a perfect tightening. You will have to use them with 4 washers of course. Mount them with a little grease, so as to make a well-balanced tightening without forcing.

Length 35mm

Original type thread therefore M7 Peugeot 103 and MBK 51/motobecane (av10) av7...

Weight of the 4 nuts: 72 grams

Maximum thread size that can fit into the nut: 30mm

They are widely used in competition on air or even liquid cylinder head. Some have already spoken of virtues in cooling but they do not improve cooling in any way even if the heat exchange surface is clearly enlarged, steel remains a poor material in terms of heat exchange.