Andy in Germany
Guru
- Location
- Freiburg im Breisgau
The Elder Son is preparing a presentation on the TdF for his college course, as he's learning bike maintenance, there's a few technical questions he's trying to cover but can't find information on them. If anyone can help it would be appreciated:
When were ratchet freewheels first introduced, so riders didn't have to flip the wheels on the bikes?
When did Aluminium replace steel, and carbon replace aluminium?
He may reappear with another question, later, so thanks in advance...
When were ratchet freewheels first introduced, so riders didn't have to flip the wheels on the bikes?
When did Aluminium replace steel, and carbon replace aluminium?
He may reappear with another question, later, so thanks in advance...