en utilisant l’arête du pneu dans les virages

11:58 Jul 2, 2020 

Blame the stiflingly hot weather here, but I got two items mixed up. That's the target group for another bike! Would have been fun though :-)

19:08 Jul 1, 2020 

" I doubt we're talking knees to tarmac though, as the target group includes people with learning disabilities and senior citizens ;-) "

That would have indeed been useful context :) .

17:27 Jul 1, 2020 

Sorry, my bad. I didn't explain very well in my question. This is actually a bicycle (pushbike, pedal bike) that's been built. Started with a Formula 1 rear wheel and the rest are parts salvaged from scrap merchants, including an aircraft wing stiffener! Because of the width of the back tyre, the bike handles like a motorcycle/motorbike on corners, which is why I wanted to know phrases used by motorbike users. I doubt we're talking knees to tarmac though, as the target group includes people with learning disabilities and senior citizens ;-)

16:17 Jul 1, 2020 

There's a confusion in your question and Sheila's answer between "bicycle" and "motorbike". I think this may be a UK/US difference, so it will depend on your readership.