I was asked to make some air tubes for a guy restoring a Suzuki World Superbike. It was from the 750cc era and he has most parts but the air tubes he had were copies of the genuine parts but weighed in at over 500grams. They were also gel coated black so he wanted carbon. It had to be the same weave and look as good as the factory part. After he asked me to do them he was given one section of the set in brand new condition for him to check out. I was sent the part and to say it was perfect would be a lie. It had pin holes in there and although it was nice it was not worth the £1600 Suzuki originally charged for the full set. 

Here are a few photos of the ones I made. 
 
Pattern ones.



weight of the pattern parts sections.


Starting lay up..




Bagged using a bagging tube through the middle of the tubes and another bag run outside the moulds then the two are sealed to each other to allow the inner bag to expand out and pull the carbon into the mould and the outer bag to seal it all and allow the vacuum fitting to be used.