635mm

[gaijintendo]

GlasgowCyclist linked to the excellent article by Martin Porter in the fevered court case thread.

https://thecyclingsilk.blogspot.co.uk/2017/08/the-alliston-mis-trial.html?m=1

It made reference to the 635 mm seat height The Pedal Cycle (Construction and Use) Regulations 1983 at the seventh section.

I assume there is an assumption that this means kids are allowed to brake with their brand new Clark's shoes (I should never have let her wear them to nursery).

Is that basically the logic? Presumably there were recumbent bikes in 1983?

 

[gaijintendo]

Yes my BMX bike, with its token saddle, is exempt

If it was a mm too high, would angling it downwards solve that?

If so... would a very long saddle extension, poking out in front and drooping towards the ground comply?

 

[Drago]

That blog misses the obvious - even with a functioning brake he may not have been able to stop in time (although he claims he had sufficient time to shout a warning, can't have it both ways), but even a decent reduction in velocity might have been sufficient to either give one time to avoid the other, or to reduce the kinetic energy imparted during the impact.

 

[gaijintendo]

That blog misses the obvious - even with a functioning brake he may not have been able to stop in time (although he claims he had sufficient time to shout a warning, can't have it both ways), but even a decent reduction in velocity might have been sufficient to either give one time to avoid the other, or to reduce the kinetic energy imparted during the impact.

Maybe it was too obvious? I don't know.
I thought it was well written. I would have written something more rambling and boring at least.

 

[Milkfloat]

Back to the 635mm regulation - does that mean that recumbents don't need brakes?

 

[Buddfox]

Back to the 635mm regulation - does that mean that recumbents don't need brakes?

They must have at least one I think

 

[mjr]

They must have at least one I think

Yes. Regulation 7(1)(a) has no exception for saddle height. http://www.legislation.gov.uk/uksi/1983/1176/pdfs/uksi_19831176_en.pdf

Regulation 9(2) looks like it makes the saddle-height-conditional section irrelevant for all non-cargo tricycles as long as the brake is on the single wheel.