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4 Mode Throttle… a Con?
Well no one is telling me I’m wrong, or ‘go buy a Honda’ any more, so I guess I need a new post!
First…how I ride. I commute every day, in Kuala Lumpur. A typical big hot sticky (and often wet) Asian jammed up city. I do long trips for work. Usually a mixture of super two and three lane highway…twisting over the local mountains…..then long ‘blast it’ straight bits. Yes I like going fast…so 160kph + on the nice bends….and 230 is the max it likes to do with panniers on. It will cruise all day at 200, but does drink a lot at that speed. (We have very ‘bike friendly’ police here!) I go out with a group most weekends…a mixture a rough rural forest roads…dangerous slow twisties, and we also include some fast ‘canyon style’ sections when we can. The only off-road is on pretty good tracks…so yes…it’s ‘off-road’ but by no means ‘enduro’. I have had the bike three months and coming up to 10,000km. So I now feel more ‘qualified’ to comment than I did when I started on this bike. (Not that that stopped me…before someone else says it!)
So this one is about the four modes…and only in respect of the fuel maps and the (not really) ‘fly by wire’ throttle.
I think we are (nearly) all agreed now that there are NOT different maps for each mode, nor for each gear, (some ‘trim’ tabs, yes). So the ONLY difference in the modes so far as the ECU/maps and throttle is the ‘throttle mapping’ i.e. the relationship between how much you twist the twistgrip and the throttle opening / power delivery. That’s it.
This relationship has been an issue for ever and some old carb’s on bikes and cars used to have ingenious mechanical and hydro-mechanical systems of cams and rods and slipping clutches and springs…and accelerator pumps…and all sorts, to give the ‘linear’ (appearance) of power delivery with twist grip / pedal operation.
Now much I’d love to bore everyone with the development of carburettors and totally mechanical fuel injection….through to ‘EFI’ (Electronic Fuel Injection) to what we have now, ‘computer controlled’ fuel injection…with the ability of a ‘fly by wire’ twist grip input able to open the throttle in any which way we may desire.
So…Urban. Caps the power at 100hp so all of the twist grip motion (lets call it 90 degrees, I have no idea) is ‘spread’ over only 100 horses rather than (say) 150…so we get a ‘softer’ response. Touring. You get the full 150….quite gentle at the beginning….then sort of slow to medium through the middle, with a nice bit of ‘grunt’ to come on the last 30 degrees of twist. Sport. Other way round…you get half the power (you know what I mean…I’m sure someone will tell me it’s not half), in the first 20 degrees of twist….then pretty sedentary all the way up. Which is why several reviewers said “put it in sports mode and all hell brakes loose”. (It doesn’t really…but we won’t go into ‘reviewers’).
Now my point is, what a total and complete waste of time! Given a good and fairly linear twist grip to throttle response…and given you can open the throttle from closed to open in what? Quarter second?....then what on earth is wrong with the very clever human hand, eye, brain, backside closed-loop system simply controlling how YOU want to accelerate? So thinking that you get some wham bang special ‘umph’ in Sports mode is not true. If you wacked the throttle open in Touring…same!!
Now it’s not as if we have 500 horses to handle here. If you can’t control this beast in town in ‘Touring’ mode then I’d suggest you should go back to a 500cc something. There is totally no need for an Urban mode and thank you…even less need to cap it at 100 horses. The difference between Sport and Touring is there…but really…for what?? Your brain, hand, arse can (normally) learn the response of the throttle on your car, bike, boat or plane…and ‘manage’ it as you want…BUT…and here’s another rub. If you keep swapping modes…you NEVER get to know (instinctively) the ‘law’ between your hand and the power delivery, because you keep changing it!!
So….the motion is: “This house believes that ‘variable throttle mapping’ is now done…because it can be done, not because it’s needed, and is no use to anyone, and may even have detrimental effects on the rider / machine output”.
Now guys…lots of you may ‘like’ it…and yep…it’s a fun gimmick…and we all like fun gimmicks…but does it really give us anything over and above what a nice (I’ll call it linear..but I’ll get picked up on that) smooth twist-grip to power output ‘law’ gives us? I’d say not.
Food for thought…sorry, I was getting a bit bored!! Nick
Well no one is telling me I’m wrong, or ‘go buy a Honda’ any more, so I guess I need a new post!
First…how I ride. I commute every day, in Kuala Lumpur. A typical big hot sticky (and often wet) Asian jammed up city. I do long trips for work. Usually a mixture of super two and three lane highway…twisting over the local mountains…..then long ‘blast it’ straight bits. Yes I like going fast…so 160kph + on the nice bends….and 230 is the max it likes to do with panniers on. It will cruise all day at 200, but does drink a lot at that speed. (We have very ‘bike friendly’ police here!) I go out with a group most weekends…a mixture a rough rural forest roads…dangerous slow twisties, and we also include some fast ‘canyon style’ sections when we can. The only off-road is on pretty good tracks…so yes…it’s ‘off-road’ but by no means ‘enduro’. I have had the bike three months and coming up to 10,000km. So I now feel more ‘qualified’ to comment than I did when I started on this bike. (Not that that stopped me…before someone else says it!)
So this one is about the four modes…and only in respect of the fuel maps and the (not really) ‘fly by wire’ throttle.
I think we are (nearly) all agreed now that there are NOT different maps for each mode, nor for each gear, (some ‘trim’ tabs, yes). So the ONLY difference in the modes so far as the ECU/maps and throttle is the ‘throttle mapping’ i.e. the relationship between how much you twist the twistgrip and the throttle opening / power delivery. That’s it.
This relationship has been an issue for ever and some old carb’s on bikes and cars used to have ingenious mechanical and hydro-mechanical systems of cams and rods and slipping clutches and springs…and accelerator pumps…and all sorts, to give the ‘linear’ (appearance) of power delivery with twist grip / pedal operation.
Now much I’d love to bore everyone with the development of carburettors and totally mechanical fuel injection….through to ‘EFI’ (Electronic Fuel Injection) to what we have now, ‘computer controlled’ fuel injection…with the ability of a ‘fly by wire’ twist grip input able to open the throttle in any which way we may desire.
So…Urban. Caps the power at 100hp so all of the twist grip motion (lets call it 90 degrees, I have no idea) is ‘spread’ over only 100 horses rather than (say) 150…so we get a ‘softer’ response. Touring. You get the full 150….quite gentle at the beginning….then sort of slow to medium through the middle, with a nice bit of ‘grunt’ to come on the last 30 degrees of twist. Sport. Other way round…you get half the power (you know what I mean…I’m sure someone will tell me it’s not half), in the first 20 degrees of twist….then pretty sedentary all the way up. Which is why several reviewers said “put it in sports mode and all hell brakes loose”. (It doesn’t really…but we won’t go into ‘reviewers’).
Now my point is, what a total and complete waste of time! Given a good and fairly linear twist grip to throttle response…and given you can open the throttle from closed to open in what? Quarter second?....then what on earth is wrong with the very clever human hand, eye, brain, backside closed-loop system simply controlling how YOU want to accelerate? So thinking that you get some wham bang special ‘umph’ in Sports mode is not true. If you wacked the throttle open in Touring…same!!
Now it’s not as if we have 500 horses to handle here. If you can’t control this beast in town in ‘Touring’ mode then I’d suggest you should go back to a 500cc something. There is totally no need for an Urban mode and thank you…even less need to cap it at 100 horses. The difference between Sport and Touring is there…but really…for what?? Your brain, hand, arse can (normally) learn the response of the throttle on your car, bike, boat or plane…and ‘manage’ it as you want…BUT…and here’s another rub. If you keep swapping modes…you NEVER get to know (instinctively) the ‘law’ between your hand and the power delivery, because you keep changing it!!
So….the motion is: “This house believes that ‘variable throttle mapping’ is now done…because it can be done, not because it’s needed, and is no use to anyone, and may even have detrimental effects on the rider / machine output”.
Now guys…lots of you may ‘like’ it…and yep…it’s a fun gimmick…and we all like fun gimmicks…but does it really give us anything over and above what a nice (I’ll call it linear..but I’ll get picked up on that) smooth twist-grip to power output ‘law’ gives us? I’d say not.
Food for thought…sorry, I was getting a bit bored!! Nick