https://media.specialized.com/Venge%20V ... Notice.pdf
Use special care if you use your bicycle with an indoor trainer and always follow the trainer manufacturer’s instructions.
There are lots of different trainer types available, including wind trainers, magnetic trainers, fluid trainers, trainers that attach directly to the bicycle, rollers, and others. Specialized does not design and test bicycles for trainer use. Depending on the trainer type and use, it may potentially apply unusual forces on your bicycle, wear parts, and/or weaken or damage your bicycle. This is especially true for composite or carbon fiber bicycles. Do not use composite or carbon fiber bicycles on a trainer which is rigidly attached to your bicycle. Improperly mounting your bicycle in a trainer or using an incompatible trainer may also damage it. Consider using an old bike you are not using on the road.
If you repeatedly use your bike on any type of trainer, your Authorized Specialized Retailer should conduct a periodic safety inspection. When you take your bike off the trainer and back out on the road, always conduct a Mechanical Safety Check and make sure nothing is loose.
WARNING! Do not ride a composite or carbon fiber bicycle on a trainer which is rigidly attached to your bicycle. Our bicycles are not designed or tested for this type of use. Riding in such a trainer potentially applies unusual forces on your bicycle frame which could result in damage and cause a complete failure, with the risk of serious injury or death.
If you have previously ridden your composite or carbon fiber bicycle in such a trainer, do not ride until you have had your Authorized Specialized Retailer conduct a careful safety inspection.