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Downshifts

Lazerus said:
Im gonna have to get you, a 95 ninja 250, and an 01 gixxer 750 in the same place at the same time. The difference in the rate the revs climb is night and day!
The rates they change, while notable for the nature of changing the time of the clutch pull, doesn't change the core of the technique. While being more comfortable with the nature and speed of the engine will be helpful, in the end, it's actually pretty irrelevant on the actual physical mechanics of the technique itself.


I did this last night. In the top couple of videos, you see more of this technique used, and SOMETIMES blipping. As you progress further down the list however, blipping all but disappears! The number of downshifts made with the throttle at dead zero is crazy.

Unfortunately, as in all things I attempt to learn, answers generate more questions. By having the engine bounce off of the limiter, aren't you putting more strain on the motor and drive? This directly conflicts with Kieth Code's advise on downshifts.

Well, obviously us mere mortals aren't going to have the comfort or the skill to manage the sort of "semi throttle" clutch shifting in the way that pridmore does. I can manage a blipshift ok, and i found that even with minimal work/practice time on the clutch slipping downshift, it's still a lot smoother than any blipping shift. For whatever reason, downshifting in this fashion is a lot smoother...it seems to allow the bike to shift much better.

I can see the advantage to getting your gear set early, as it allows the bike to settle before turn in and gives you a better chance of nailing your drive out of the corner

BUT if you are downshifting at a point where before you would just be rolling of, havent you just effectively spent more time and distance slowing down at a greater rate? Do you need to change up your reference points to compensate? It seems like it would leave you wide open for someone to outbrake you. If you are on the brakes before you begin downshifting, it seems like you are handling both deceleration tasks simulateously thus lowering your lap times.:confused

The advantage here is that as approach your braking point, you must roll out of the throttle. Now, in order to avoid upsetting the chassis, the action is smooth and you "roll into the brakes" as you "roll out of the throttle". There is a short point where the 2 overlap, as mentioned by Lee Parks in Total Control. During this period, (as you're rolling out of the throttle) you snap the clutch in, downshift, snap it in again if you can pop it fast enough and while you're braking, and then you finish your downshifiting with either blips or clutch downshifts as much as the situation dictates.

again, thank you folks for taking me by the hand here. It is this kind of knowledge sharing that I thirst for and actively seek. I appreciate every ounce of it! The track is coming soon, but at my income level will be a rarity, so the more free coaching I can get, the better :Port [/B]

I'm in much the same situation...and believe me, i don't understand things much better. I'm putting my opinion on what works for me out there, and i'm going to be revising it based on what works better. The clutch downshifts are so much smoother it's amazing, even with no practice on that technique, that it seems to be very worth my time to work on it until i can use it comfortably in the situations that it fits.

Obviously, JP has much better control over this technique, allowing him to use it in more situations than i'd be capable of it. Just think back to when you were first trying to blipshift, and think about how hard it was...and then imagine doing it for years and years and years, and that's how JP is able to do it so comfortably. We keep working on it, and eventually we hope that we can understand how they manage to do it.

Edit:
JP summed up a key point of this technique that i missed completely...it gets your shifting done quick and early, before turn in, as quickly as possible. This in turn allows you to get ready for everything else as quick as possible, as per keith code's advise.
 
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"The advantage here is that as approach your braking point, you must roll out of the throttle. Now, in order to avoid upsetting the chassis, the action is smooth and you "roll into the brakes" as you "roll out of the throttle". There is a short point where the 2 overlap, as mentioned by Lee Parks in Total Control. During this period, (as you're rolling out of the throttle) you snap the clutch in, downshift, snap it in again if you can pop it fast enough and while you're braking, and then you finish your downshifiting with either blips or clutch downshifts as much as the situation dictates"

I have read Total Control (great read btw), and can see that this technique would mesh very well with this new to me downshifting, but my question was directed to quasi888 actually. In his explanation, he said that once you have the throttle closed, you need to be "ramping up on the brakes".

MODS, it sure would be cool to get this thread stickied, maybe in training???? Awesome Q and A.
 
JP-forty-three said:
Thanks to those of you who say you are thinking about coming to a STAR school, would be great to meet you and we will do the 2 up ride so you can feel the technique we are talking about. Come to think of it, hope you cant feel me downshift./B]


Just to follow-up on this: I've been to a number of schools, many of them multiple times, and nothing I mean nothing did more to improve my riding than my 2-up ride with Jason! It truly opened my eyes to what was possible with a motorcycle in ways that no amount of classroom (or Internet forum) discussion could...
 
fubar929 said:
Just to follow-up on this: I've been to a number of schools, many of them multiple times, and nothing I mean nothing did more to improve my riding than my 2-up ride with Jason! It truly opened my eyes to what was possible with a motorcycle in ways that no amount of classroom (or Internet forum) discussion could...

Just to add to this, I have also heard this over and over, from friends who've been riding for 2 years, to a friend that i have that's been riding for 45 years. I really want to get out there and take a ride 2 up....:teeth
 
Lazerus said:
I have read Total Control (great read btw), and can see that this technique would mesh very well with this new to me downshifting, but my question was directed to quasi888 actually. In his explanation, he said that once you have the throttle closed, you need to be "ramping up on the brakes".

If quasi will forgive me for stepping in here, i think i can shed some light on the situation:

You keep your current reference point for braking. As you approach your braking point, you're rolling off, (downshift 1, maybe, downshift 2, pridmore style), and then then you're on the brakes, and it's back to blipshifts as needed.

The difference here is that it's going to require you to set both your roll off reference points and your braking points, and adjust them as you feel fit to incorperate this technique into your downshifting style.
 
Z3n said:
I really want to get out there and take a ride 2 up....:teeth

FYI, many schools can arrange for you to take a 2-up ride with an instructor. And I guarantee that they'll all be eye-opening.

Jason is the King of Smooth, though. It's almost difficult to believe just how good he is... I was surprised when he told me not to hang onto him! "Just put your hands on the tank to help brace during braking." I thought for sure I was going to fly off the back. But despite the fact that he got on the gas sooner and harder than I thought possible, my butt barely moved on the seat. Had to look over his shoulder to be sure he was shifting!

Best part of the ride was going through T6-8 at Thunderhill. I thought I'd been zipping through there pretty quickly at 100mph indicated. Looked over Jason's shoulder to see: 120 on the speedo, his left hand resting on his thigh, and we were easily slaloming through students like they were a moving chicane. I got the impression it was basically a Sunday drive for him... :teeth
 
fubar929 said:
FYI, many schools can arrange for you to take a 2-up ride with an instructor. And I guarantee that they'll all be eye-opening.

Jason is the King of Smooth, though. It's almost difficult to believe just how good he is... I was surprised when he told me not to hang onto him! "Just put your hands on the tank to help brace during braking." I thought for sure I was going to fly off the back. But despite the fact that he got on the gas sooner and harder than I thought possible, my butt barely moved on the seat. Had to look over his shoulder to be sure he was shifting!

Best part of the ride was going through T6-8 at Thunderhill. I thought I'd been zipping through there pretty quickly at 100mph indicated. Looked over Jason's shoulder to see: 120 on the speedo, his left hand resting on his thigh, and we were easily slaloming through students like they were a moving chicane. I got the impression it was basically a Sunday drive for him... :teeth

Dreams, dreams....:teeth
 
:hail JP thanks for coming here and breaking this down. I have actually been to STAR (2 days in Pahrump) and somehow missed the part about keeping the throttle open when downshifting. I am actually headed back to Pahrump this weekend and will test it out.

Turn 3 at Pahrump for example, I normally get to my braking point and down shift and slowly let out the clutch while braking. While I have no issues with the rear end getting out of shape. I wonder how good this is for my clutch.

Last question: What are the skill level requirements for Pro School? (besides completing standard STAR)
 
In a car this is very similar in technic to Heel toe. You use your toe for the brake and your heel for the gas so you can control the RPMs as you are braking while your left foot pushes in the clutch.
Great advice OP thanks for posting!
 
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