Add punctuation: The sale price included the bike But even a kit of parts provided assistance and transportation of meals during the event
A: The sale price included the bike, But even a kit of parts provided, assistance and transportation of meals during the event.

Add punctuation: With twin wheels the tractive force is even better and you can drive safely and stable around on all kinds of surfaces
A: With twin wheels the tractive force is even better and you can drive safely and stable around on all kinds of surfaces.

Add punctuation: The new space will become a breathing space and free space to roam and stay for walking running playing and sitting people
A:
The new space will become a breathing space and free space to roam and stay for walking, running, playing and sitting people.