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Thread: Clutchless upshifting

Created on: 11/25/21 09:25 PM

Replies: 6

jjmd



Joined: 11/25/21

Posts: 2

Clutchless upshifting
11/25/21 9:25 PM

Curious how many zx14r riders use clutchless upshifting in day to day riding. I have been doing it the past few months and it seems to produce much quieter up shifts even when not pushing the bike that hard. I have a 2018 zx14rSE.

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zx14r9040


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Location: Miami Beach Fl

Joined: 11/04/21

Posts: 30

RE: Clutchless upshifting
11/29/21 5:17 PM

I had a conversation with Ron and Kevin from Blais Cycles in South florida and they warned me not to use the clutch when upshifting at high speeds , it would slowly detroy fibers on the clutch ... they said.



2018 ZX14R Pearl Storm Grey & Ebony w Orange accents 2008 Big Dog Ridgeback 330 2016 Harley Davidson Ultra Limited

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Rook


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Joined: 03/28/09

Posts: 20813

RE: Clutchless upshifting
11/30/21 6:32 PM

I had a conversation with Ron and Kevin from Blais Cycles in South florida and they warned me not to use the clutch when upshifting at high speeds , it would slowly detroy fibers on the clutch ... they said.

That makes sense. The engine gets slowed down a few hundred rpm by the transmission when you shift up. Disengaging and then engaging the clutch must result in a reasonable amount of slippage between the plates when the engine is turning fast.



08 MIDNIGHT SAPPHIRE BLUE ZX-14 Now Deceased, will be resurected 2024 ZX-14R bran friggin NEW!

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Hub


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Joined: 02/05/09

Posts: 13784

RE: Clutchless upshifting
12/01/21 6:11 AM

Ron and Kevin are correct. No spin load, no wear. But grabbing gear with lever is a no-no. You just keep practicing slow and fast shifting. It's all about timing, and I work on it because I'm so-so at it. That in motion, so as soon as you lift it's instant to the next gear. It's all about unloading going up, and timing going down.

I do not shift down each gear. All gears are collected before I touch the white line to stop. Lever is held out to the last second or so. It's the same exact as Ron/Kev would agree with I thing. Rev and catch some timing on the downshift, but really you are skimming material off it once those plates release, and you feed power on those collapsing plates.

I had a video eye catcher once I looped back home. Hugging the cement barrier is going around a sharp J curve, but it's.., if motion moves, then moves in a straight line... the video proves it.

Oh yeah, the throttle hunting is over. You are committed to that gear for who knows how long, you know this bike is taking up territory quick.

If I pull the lever, it's just enough to break it, not all the way to the grip to shift. Don't know WOT the group's lever habits are, but it's to save 2nd gear if I'm going to step it up. But low rpm, not so much, but I better be 100% in the centration no matter what gear.

Been doing this since new. Last oil change and filter dissection, I've never seen a cleaner set of pleats. Not seeing transmission chips fall where they may?



Tormenting the motorcycling community one post at a time

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Maddevill


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Location: Hayward, CA

Joined: 04/23/11

Posts: 2672

RE: Clutchless upshifting
12/01/21 6:47 PM

I usually use it for gears 2-6. Especially now that I have a thumb shifter. I always shifted
without the clutch when I was racing.

Mad



Owner of KNGKAW.

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TrashHauler



Location: Downunder

Joined: 09/28/12

Posts: 41

RE: Clutchless upshifting
12/20/21 4:26 PM

I shift up all the time clutchless - the only time I use the clutch for upshift is when I am in slow traffic between 1st and 2nd.


* Last updated by: TrashHauler on 12/20/2021 @ 4:27 PM *

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pegscraper



Location: UK

Joined: 05/04/12

Posts: 440

RE: Clutchless upshifting
01/01/22 6:01 PM

No problem here either with clutchless up shifts. I tend to do it 'cos I'm lazy, not to to get quicker shifts. Concentration is key and remembering not to use clutchless down shifts, I don't think you'd get away with many before something broke!

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