No, they're legal.
In the UK it certainly is.
Most bike front lights are white. When LED (light emitting diode, which offers much better battery life in a much smaller package) lights were first introduced, white LEDs were not available and so green ones were used instead. These were intended only as "supplementary" lights because, at the time, using LED lights in place of those with conventional bulbs was illegal in the UK. This law has since been changed due to modern LEDs being easily bright enough to use them alone, but the law still demands that a white light is used at the front of the bike - although green LEDs are still found in some cheap bike lights, they're still illegal unless used with a white light (either LED or conventional bulb). Lights with white LEDs can now be bought for just a few pounds, about the same as those with green LEDs, so there's really no need to continue using them and risking a fine should the police stop you.
Blue LED lights are sold in the UK from many establishments. They can be found online on sites such as Amazon and Ebay and also from hardware stores such as Screwfix.
yes if its a public field if its private then u must get permission
Yes if not original fitted to the vehicle. : In US aftermarket conversion is illegal. Some countries have the law only for OEM (factory fitted) Xenon lights like UK. Other countries have no such law and you can do what ever you want.
are there any good bike parks in the uk?
what age do you have to be to drive a pit bike in the UK
The act of sniffing glue is not illegal in the UK but it is illegal to buy or sell glue for such a purpose.
No
One can purchase a Kinesis bike in the UK from various websites like Amazon or eBay. One could also visit a local bike store in the UK and ask if they have one for sale.
They are illegal in some countries, such as the UK.
if they have a licence there not illegal