Query Approved

well yes you can shift gears without pressing clutch.. timing needs to be correct. this technique is used to reduce the loss of momentum and upshifing is easy..

do not use clutchless shifts at lower gears as the ratio changes radically and will give you jerks if not done quickly and will also be harsh on the gears..

the same can be done in downshifting however not advised.. as you move from the taller gear ratio to a short gear ratio and hence engine braking comes into picture.. as soon you change to lower gears.. the momentum makes the engine rev high and the engine compensates by reducing the speed of the vehicle... also never ever do it while on turns.. due to the sudden jerk the tyre will loose traction and you and the lady will be tasting dust...

for upshift its fine as this helps in quicker acceleration but should only be done frequently once you get an expertise...


i used it for a long long time on my rx and cbz... however same cannot be done on the bull...

on a straight drag.. use clutch for the 1st and 2nd and then be quick with you left foot... what is needed is the symetry between the right hand and the left foot and you'd feel the fun....

diffrent engines react in diffrent ways..

Hi, for clutchless shifting one need to synchronize left leg & right hand. so that engine and transmission is not under load which makes them accept gear changes while doing all this. here's my synchronization tip:
suppose you are riding in 2nd gear & want to upshift w/o clutch..
Accelerate to 3.5k rpm or above, while accelerating pre-load the gear shifter, now when you want to shift, roll down the throttle. As soon the throttle is rolled down, bike will upshift (because of the pre-load on shifter), last step, un-load the shifter. Done.
Repeat all above for further up shifts
While clutchless shifting always remember, bike should be doing 3.5k rpm atleast or else there will be jerks which you won't like.
Clutchless down shifts are prohibited, because it will initiate engine braking, very very instantly & can cause wheel locks. Though, under emergency conditions one can do that too with correct (& less harmful) technique, which is:
suppose you are doing any speed/rpm in top gear. Roll down & shut the throttle and use brakes to slow down speed and rpm. At 1k rpm or around, 'downshift' you may feel harder gear shifts. That's normal with downshifting.
Remember always downshift when you are below 1.5k rpm, else you'll get nasty jerks.
All these are what i do, though not always. Hope it helps.

Well lets keep this simple, if we can do clutchless shifting why have they provided us with clutch for? .

Jokes apart when i was young my dad had showed it on his splendor. He shifted to 3rd and 4th without using clutch.

And when I grew old I tried it on my karizma too. Didn't work out quite well .
Once (accidentally) I put 1st gear on standstill without clutch. Just imagine you sitting on one of those bulls in a Spanish bullfight and it leaped off. Oh my god! it was scarily hilarious. My bike jumped off, my hands were on the handle bar and thats why I didnt fall off. Bike then conked off .

Bro, what do you mean by un-loading the shifter?
Pre-load is like pressing the gear lever (w/o clutch) to a point where it slots into a higher gear and then by relaxing the throttle we find the gear engaged, right?

I thought this was the whole process. Where does unloading come from?
Excuse me if I'm wrong, but its a genuine query.

A few month before i tried clutch-less up-shifting on my Slingee and it felt even smoother than when using clutch but while it felt nice to me i was fearing if something will happen to its transmission and now i'm trying my best to use clutch and still occasionally do that Subconsciously can anyone point out whats happening when we up-shift with and without using clutch, does it cause any ......trouble?

thank you everyone for responding. So this confirms that clutchless gearshifts are possible provided the timing is correct. So this technique can be used at times when the clutch cable goes off, but it would be tricky for the first gear as one will have to bring the bike into motion to shift to the first gear.

I now also understand the concept of pre-loading the gear lever as this allows the gear shifts to be quick.

if you go through the following link (Some naked, others not so naked (MotoGP inside) - Honda-Tech) one of the posts mentions of some quick-gear shifting mechanism to aid gear changes without the use of the clutch. Though these technologies look/sound pretty hi-tech hence only limited to motogp bikes i guess. Any comments on this?

When i did it, it made a cracking noise but the gear did change. It felt like the engine is going to explode i even imagined it in my mind (i.e. the engine exploding) .

As far as i have understood till now about clutch is that the momentum of the engine is transferred to the clutch temporarily while the gear is changed and once the gear is locked and the clutch released the engine can take over from that RPM and move on. this helps in smooth gear shifts.

yup, you're right about pre- loading, which is putting load on shifter to a point (dont put too much load, its useless) when you let the throttle go, bike will automatically shift (with a normal movement of the shifter)
while I was teaching, a friend of mine to clutchless shifting, he kept the pressure (load) on shifter even after shifting has taken place (it moved from its usual place/position when upshifting took place). So one has to let the shifter come to its original place by 'un-loading the shifter' (by removing foot from the shifter )
so that one can once again shift without clutch
[I know un loading the shifter was kind of LOL statement]
@ Rashid,
if you ain't getting any jerk/noise etc then you're upshifting perfectly. No problem if you carry on. But I dont have any long term experience and waiting for experts advice.
@ sunilyo,
in case of busted clutch cable:
for shifting to 1st from neutral, push you bike to around 5kmph & then shift w/o clutch & throttle.
For shifting to second from stand still or neutral reach the the speed of around 10kmph. Done

One needs to just give a verrry small(Just touch)pressure on the shifter before reducing throttle.i normally do half-clutched downshift when i am forced to brake suddenly and end up stuck at the top gear in the middle of the road
Clutchless Downshift??????

right.

not sure if its clutchless downshift or what, but in that sticky condition, keep pumping gear shifter to downshift (not harshly but firm enough), keep pumping clutch (just dont leave clutch lever more than ~70%) and push your bike forward a little (few inches). Do all these 3 things all together & It will downshift easily.