foreign.concept14
New Member
While we're on this topic,the 6r slows down just letting off the throttle pretty significantly. Is this due to the compression? I would imagine these are pretty high compression systems.
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While we're on this topic,the 6r slows down just letting off the throttle pretty significantly. Is this due to the compression? I would imagine these are pretty high compression systems.
While we're on this topic,the 6r slows down just letting off the throttle pretty significantly. Is this due to the compression? I would imagine these are pretty high compression systems.
If this is the first bike you've ridden, I can see how it may seem like a lot of engine or compression braking. This bike is, I believe 12.3:1 compression (someone please correct me if I have that wrong) so compared to a car, yeah, the thing is going to slow down a lot by letting off. And that's all good if all you need to do is slow your speed for a turn but stay in the same gear. But a small inline 4 has nothing for compression braking to something like a big high compression V-twin. The general rule of thumb, the fewer cylinders and higher displacement, the more engine braking. Add in things like high compression pistons and thinner gaskets (like my uncle has on his Harley Fat Boy) and if you down shift from 3rd to 2nd without some kind of rev-matching, you WILL lock up the rear wheel. It's like standing on the rear brake as hard as you can. That's why using only compression braking when down shifting, especially if you're riding hard in the twisties, is not a good idea. Now if you only need to slow your speed to setup for the next corner but staying in the gear you're in, it's fine because you're not dropping down a gear. It's when you down shift and just rely on the compression braking that you can get yourself into trouble. Even on a small inline 4 like we have.
You're welcome. I started doing it when I started riding at a speed when I was actually having to shift up in some areas to keep from hitting the rev limiter. Then suddenly I had to down shift again into the next turn. A lot of the local canyon roads you can just run in 3rd gear and never have to shift. but speed things up a bit and suddenly you're a bit more busy. The rear would get a bit sideways and things got a little sketchy. So I rewatched TWOTW and picked up the technique. The way I like to do it is index and middle finger on the brake lever, and really using the thumb and the crook at the base of the thumb to control the throttle. I've been working on using the pinky and ring finger for throttle control as well. I would say the hardest thing is making sure you're not changing the amount of brake pressure as your hand is blipping the throttle. Have to kind of let the finger tips slide across the brake lever without changing pressure. And you don't have to pull the clutch in all the way, just enough to disengage it. You can see that in the video.
I use the brakes and as my speed drops, I downshift to match the speed. That way if I need to jump back on the throttle, I am in the right gear.
braking is very important, does ABS make that big of a deal ?
Thanks for the vote of confidenceI actually worked on the technique in the garage to get the timing down, then worked on it, like you said, on long straight runs. The good thing about it is most of the time when you don't hit it right its because you've over rev'd it and it'll tend to want to lurch forward a little. It is a feel thing unfortunately, just something you have to work on. Just like when you first learn to ride and you have to learn how to feel the friction zone on the clutch. Now it's second nature. Same thing with this.
The first time I really saw the technique in real time was in Keith Codes video Twist of The Wrist II. They show exactly how to do it. Here's a YouTube clip of it.
Twist.of.the.Wrist.II_mpeg4.avi - YouTube
Blipping is not something I've been able to do. It just seems my fingers aren't long enough to work it out.
ok regarding braking..........
What brakes are used for the following instances : (rear,front,both, and percentages ? ) ie......100% front, 50/50 front back, etc......
REGULAR BRAKING :
5mph ?
10 mph ?
20 mph ?
30 mph ?
40 mph ?
and so on up to say 70 mph ?
and then 100+ mph ?
QUICK BRAKING: (someone cuts you off, traveling same direction)
5mph ?
10 mph ?
20 mph ?
30 mph ?
40 mph ?
and so on up to say 70 mph ?
and then 100+ mph ?
PANIC BRAKING: (someone pulls out in front of you at intersection/road
5mph ?
10 mph ?
20 mph ?
30 mph ?
40 mph ?
and so on up to say 70 mph ?
and then 100+ mph ?