commental

@matadorCE: Haha, I will do me thanks. Why did you ask the initial question if you didn't want to get a reaction? It seems odd to me that you took issue when you got a reaction, but hey, no worries.

@matadorCE: I don't have to sing anything and those prime ministers are in the past, not the future. Things here are less than ideal, but I still thank my lucky stars I'm this side of the pond. Thanks for your concern though, it's really appreciated.

Pretty shit really, but it could be worse, we could be faced with a choice between Trump and Biden.

@Eland: If the producers of that crap had a shred of decency they would've arranged an "accident" with some salt water crocs by now.

It was interesting listening to the guy who runs a heli biking operation talking about bikes regenerating the environment. No irony there.

@B-foster: Yes, I think you're probably right. It's interesting watching the video using this method copied from a comment on another thread; "A little known feature of Youtube: If you pause, you can then use the comma and period keys to go (respectively) backwards and forwards, one video frame at a time. Much more convenient than trying to pause at the perfect moment! Note that on an embedded video (such as here), you'll have to first close the "other videos" popup that appears when you pause." If you watch the video using this method it's amazing how much the chain jumps at times as it engages (or not) on the first pulley at the top of the chain, As Jesse-May mentions in the article, the top tensioner acts as a chain guide. With the pulley on the lower tensioner being further away, and seeing how much slack there is at the bottom of the chain at times I could see it being far from smooth and pretty easy to drop the chain when back pedalling, especially off road. Sorry if I'm going on a bit everyone, as you've probably all worked out by now, I'm not from an engineering background.

@B-foster: Yes, I think I'm getting my head round it, but with the "chainring" changing in circumference with altered torque I wonder if there would be problems with the pulleys meshing with the chain if they can only rotate clockwise? I'm not going to lie, it's making my head hurt!