Oh man, thank you!

How could I miss the "solid" word!
Several questions on the grammar:
Meshed really well: this?
Hard to defend: defend what? Sounds like they've had a lot of trouble with this base but they've successfully overcome it, right?
With a lot of guys getting hurt it: what's "hurt" here?
We have an amazing bike: why does he use singular? Do they have only one bike?
What exactly "pro cirquit" is? Professional motorbike riding?
It’s got to look good: why "it's got to look good" instead of the simple "it looks good"? What's the meaning behind this roundabout thing?
lot of wear and tear: sounds like a set phrase, is it?

And another one on the previous video:
The Roller, can it be just another word for "chain", because several time s in the vid he says something like "put it on the roller" but he isn't lubricating any separate roller at the times, but just spraying stuff on the chain.

Also for everyone, you're welcome to re-check the video or correct the rigid places in the vid.