Hi can anyone help, I have just managed to Caustic soda the seat post out of my new project bike, as 95 Gt Arette. Does anyone know the correct Seat post size?????
26.4 is a common GT seat post size. If you've had a corroded post in there make sure the seat tube is clean - I use a length of fine emery cloth warped round a half round file to gently smooth inside the tube. Has the advantage of getting rid of any crud which makes fitting a post difficult plus if you do a good job it stops the new post being scratched.