Engine

Jumping index

1. I feel a pine my hip when riding.
   
   
2. Which is better when I climb, sitting or dancing?
   
   
3. Is pushing faster than riding?
   
   
4. Please tell me how to climb the hill .
   
   
5. Why the MTB has twin shifter?
   
   
6. I can't pedaling at on road cycling.

Special thanks
Kazufumi Moriyama