Very. The quality and safety of a composite repair is reflected in the standard of the facilty and the engineers. Safe and complient carbon repairs require resources and training. It takes 2 years for a repairer at CBR to achieve 2 of the 3 qualification levels available at Carbon Bike Repair. The repair ‘theater’ is sealed and depressurised to prevent contamination during the repair cycle. The repair process passes through 3 QC stages before it is released to the restoration departement.  Carbon bikes can be repaired safely if there is a standard by which to measure repairs.