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Old 10-06-2013, 04:50 PM   #1
cellige OP
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sport bike downshift

Question about downshifting !

Seems to be that the technique used out on the track (mainly without a slipper clutch) is to downshift while braking, releasing the clutch for each gear, finishing your braking/downshifting before you lean the bike, lean the bike and then immediately after done leaning, roll on the throttle.

I would like to know why there is an advantage doing that method instead of: braking, downshifting through each gear with the clutch held in, leaning the bike and immediately after leaning getting the clutch in the friction zone/rolling on the throttle/getting clutch all the way out.

So whats the deal?
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Old 10-06-2013, 05:12 PM   #2
sprocketjock
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Engine braking helps slow the bike down.
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Old 10-06-2013, 05:18 PM   #3
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You should really post this in the Perfect Line forum, they're all experts up there, this lot is just a bunch of armchair warriors...
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Old 10-06-2013, 06:21 PM   #4
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You should really post this in the Perfect Line forum, they're all experts up there, this lot is just a bunch of armchair warriors...
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Old 10-06-2013, 11:40 PM   #5
Crisis management
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It's on a roll, I'm going for 20 pages on this one!
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Old 10-07-2013, 12:53 AM   #6
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Clutch ?
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Old 10-07-2013, 06:21 AM   #7
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Clutch ?
That too.

The clutch is for pulling away from red lights.
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Old 10-07-2013, 08:04 AM   #8
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if you try to do all that stuff when you're trying to set the bike up for a turn, there'll be a time that you REALLY won't like what happens....
pull in the clutch, downshift, throttle blip and release the clutch to equalize rpm's, setting up your entry speed, then start rolling on the throttle while yer' turning .....

take a keith code school.... asking questions like this here is gonna get you some really bad advice that might not work very well at 100.....
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Old 10-07-2013, 11:48 AM   #9
swimmer
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Originally Posted by cellige View Post
Question about downshifting !

Seems to be that the technique used out on the track (mainly without a slipper clutch) is to downshift while braking, releasing the clutch for each gear, finishing your braking/downshifting before you lean the bike, lean the bike and then immediately after done leaning, roll on the throttle.

I would like to know why there is an advantage doing that method instead of: braking, downshifting through each gear with the clutch held in, leaning the bike and immediately after leaning getting the clutch in the friction zone/rolling on the throttle/getting clutch all the way out.

So whats the deal?
The method you describe would lead to too much instability introduced at corner entrance. Also sounds like a lot of wear of the clutch.

Your first sentence is the correct method for most racers (at least as I was taught at the riding school I went to) with the exception for the fact that you'll want to be on your brakes in a decreasing amount all the way to the apex - more lean angle, less brakes. Most racers prefer to use the clutch going down through the gears and releasing the clutch slightly at each change down. Using the clutch on up changes in less common.
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Old 10-07-2013, 01:14 PM   #10
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Stability is important, wear on clutch to be avoided, so before the corner slap down a gear ( sans clutch) , brake short but heavily and bias to the front , so much bias that the front dives and the back rises, whilst the rear is in the air slap further down to the appropriate gear, possibly the rear will now start bouncing ( slipper clutch could help) release front brake and lean in to corner (maybe 59 degrees max). Roll on throttle and hold tight. Lift front wheel and counter steer to maintain lean angle, rear may slip a little.

Now please don't try this on public road.
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