Are at least some of the EU emission requirements counter productive?
Catalytic converters are being removed about as quick as manufacturers are putting them on.
I wonder what the percentage of offending gases were before catalytic converters and what they are after being mandated ?
Are bikes whose catalytic converters who have been removed still better or worse than those bikes who never had catalytic converters?
We all know the arguments against cats: heat, weight, performance, and sound.
My assumption is the catalytic converters are necessary to limit the offending gases but how do bikes compare to cars, trucks, buses and even lawnmowers? Are bikes a big piece are a miniscule piece?
Is removing catalytic converter on bike like breaking the speed limit by two miles per hour or is it more like 20 mph over?
I would argue that it is a crude and short sighted way of squeezing a few extra HP out of your bike. There are better options, they are more expensive, and less damaging to the environment.
Note that passing emissions testing does not mean that your bike is clean. Emissions testing just makes sure that your lambda cycle is working like it is supposed to, and carbon monoxide is not egregiously off. It does not test for the two main things the cat removes, which are hydrocarbons and nitrous oxide. I don't know of any jurisdiction where it is legal to remove the cat as long as it can pass emissions without it. Anyone that is testing can smell the difference in hydrocarbons (it just stinks), so there is a good chance of it not passing if it is not a friendly commercial mechanic that is doing the testing.
Well, yes, you are probably doing less damage than a lorry driver, no matter what you sabotage on your bike. But please consider that while there is at least economic necessity for pollution by a lorry driver (we all want to buy stuff at the supermarket), a lot of motorcycle use is purely recreational driving in circles which could just as well be done on a bicycle, if your stamina is up for it. So all of that is unnecessary pollution. Better keep it at a minimum.
And that is exactly why Triumph went into water cooling and completely overhauled the range: Emissions! Just look at what a cat alone costs. It is one of the most expensive parts on the bike. So here you have a brand new engine, with not just a cat, but also state of the art fuelling, cooling and engine control, and you rip out the essential piece why this engine was redesigned. Because you want three more horspowers and are too cheap to do proper tuning. (not specifically you, retjustdad53, but people who rip out the cat in general)