So we have heard lots of questions about carbon fiber these days, and lots of Riders Club members have been writing to ask about caring for their carbon bikes. So us in the Carbon Engineering department sat down and put together this little tip sheet, to help you get the most from your carbon bike or components. Enjoy!
Carbon Tips from the Engineers at Specialized Bicycles
1. Do not use grease on any Carbon seatposts or Carbon seat tubes. What we have started to use in the shop is a product from TACX called Dynamic assembly compound. We have found that this product works very well with all the carbon products.
2. Always use a torque wrench! This is a VERY important tool for carbon fiber frame owners to have. It is much harder to determine the torque on a bolt by feel with carbon than it is with alloy. Overtorquing is probably the biggest cause of cracks that we see in carbon products.
3. It is fine to wash the bikes with soapy water and a hose, and like any bike, it's never a good idea to aim the water directly at bearings (headsets, cranks, etc). We recommend hosing the bike off, then washing with a brush, sponge and a bucket of warm soapy water of diluted Simple Green. Finally, rinse carefully.
4. After a wash, use Pledge furniture polish or something like Pedro's bike lust to put a nice new shine back onto the bike.
5. If you have any stone chips or have had chain suck, then it is a good idea to protect the raw carbon finish with either a clear tape or some clear nail polish.
6. If a frame has been crashed, you should always have it inspected by your dealer.
7. When cutting components (handlebars and seatposts, etc):
- We recommend using a carbon-specific hacksaw blade. These blades essentially “sand” through the carbon instead of tearing through with teeth, which tend to fray and splinter the fibers in the composite. It’s also good practice to wrap the carbon with tape before cutting, though this is less necessary when using a carbon-specific blade.
- Pay particular attention to the orientation of the seat collar. When using a carbon post, it’s very important to have the seat collar slot on the opposite side of the seat tube slot. This helps disperse loads better, reducing the possibility of pinching and crushing the seat post, as well as reducing frame damage. Diagonally slotted seat collars are highly recommended, and proper torque is crucial to long component and frame life.