In general there are:
- High clamp
- Low clamp
- Braze on
- Top pull
- Bottom pull
And in particular, is any of those better choice regarding reliability and durability for touring bicycle.
In general there are:
And in particular, is any of those better choice regarding reliability and durability for touring bicycle.
Touring → fenders. So, you need enough space for the rear fender. That's why a bottom-pull design is preferred. Most of the touring bikes designed to use this type of derailleurs. About high clamp/low clamp/braze on — this is frame-specific.