Changing Gear

[dainesefreak]

To clutch or not to clutch?

I found this article over the the 1000rr site thought someone might find it interesting. (or not )

https://www.vf750fd.com/blurbs/shifting.html

[Mr.Everready]

Theres alot of reading there

Whats the gist of it ?
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[Zoffo]

Find cluchless changes smoother and I tend to hit false neutrals between 1st and 2nd if I use the clutch. This can be a bitch if you've just cained it if first and miss second while doing 80 mph. You have to slow all the way back down til the bike accepts the gear or risk stripping cogs
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[Mr.Everready]

I've never tried it, always a bit scared that it will do something
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[killa]

Does Rossi do it?
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[Zoffo]

[Claud 14.7 to 1]

[Loz VFR]

does rossi do it???

he accelerates whilst braking into corners so that he can get the power down earlier and keep the revs higher. so Id imagine that he does clutchless.

[EuropeanNC30R...]

I'd expect GP racers to use quickshifters tbh.

[Claud 14.7 to 1]

[Barry_M2]

You dont need to roll off the throttle on a GP bike (or any race bike for that matter!), soon as you go to engage the next gear up, it cuts the ignition for a split second to unload the g/box and allow you to select the next cog. Lets the rider keep the throttle open so the air flow into the engine remains uninterupted. Save's a few 10th of a second a lap apparently.

Loz - How can you accelerate while breaking?

[cc123]

[Mr.Everready]

According to reports this is what Rossi does. It made the bike news a few weeks back.
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[EuropeanNC30R...]

Loz is right, it's been reported that Rossi goes through corners with both the brakes and throttle on - something to do with weight-distribution I guess?

Claud - The quickshifter does dipping the throttle work for them so 'clutchless shifting' is a bit irrelevant for Rossi

Though I've noticed he still uses the clutch coming down the gears, probably to control rear-wheel chatter.

[instigator]

[Zoffo]

True. It's like left foot braking in a racing car. The F1 cars only have a brake and accelerator pedal but mort use both feet to be able to apply the brake and accelerator at the same time. This allows them to build up heat in the disc for when it's needed without losing speed to early.
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[cc123]

I thought locking the rear wheel was a beginners thing too!!?

Think it's all about learning about your bike too, I know what my brakes are capable of now and can judge when to change down. It's an art
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[Claud 14.7 to 1]

[Barry_M2]

[/quote]
Still though clutchless shifting though, isn't it? I mean the only thing they have is the electronic device that cuts the ignition, whereas we have to shut off the throttle "manually". I hope I understood you right. [/quote]

You got it!

I was thinking of doing something simelar on the cheap years back, by putting a switch near the gear lever, and hooking it upto the side stand switch to cut the engine when you went to change gear! Me and my daft ideas!!!!!

[EuropeanNC30R...]

At last something useful for the sidestand switch to do.

[RiderOfTheSto...]

You use the brake and throttle at the same time a lot when riding off road. On certain tracks you might find that you need to do it all the way around. It keeps the bike in the burms where you want it.
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[Nolongerhere]

I do clutchless some times depends normally if I am feeling lazy. Down the gears I always use the engine more than brakes blipping the throttle and letting the clutch out after each gear changed!!!

[loply]

When I do clutchless shifts under heavy acceleration the next gear always comes in with a bit of a jerk, any idea how to avoid this?

I tend to roll off the throttle quite far and quite aggresively then snap it back open again.
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[Zoffo]

[paulyzf600]

The best thign about clutchless gear changes are you are in more control when on full chat!

what happens when you open it up in second and the revs are at 13,000 RPM (well on my bike...lol) you need to change gear and if it's with the clutch you tend to grab the clutch as fast as possible and and then let go. This can shock the bar position and be pretty scary when you grab the clucth and end up wobbling the bars cos you grabbed so quick.

It's also for smoother and quicker but like said above you are nither on throttle or off throttle it's kind of the milly second in between that it happens! top end revs are smoothest as it's so quick mind watch cos it can sometimes supprise you as no sooner are you going to change when you are already in the gear and it's time to change again........lol
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