Hi guys,
Just a quick question, I've heard conflicting advise regarding up shifting, the main difference in the shifts being with or without clutch. I've been trying with clutch, which is fine when riding sedately but try and do it when going quick and the engine revs as I can't shut the throttle quick enough...
Without clutch it seems to shift a lot smoother, no over-revving of the engine and doesn't give any alarming clunking sounds, suppose its just like a slower version of an electronic shifting device!
What do you all do? and should I be avoiding any particular technique? Thanks
![[Image: 145352.png]](http://mefi.us/images/fuelly/smallsig-uk/145352.png) ...Oh Yeah!
Clutchless up-shifting can be useful and smooth, but takes a bit of practice to get it spot-on (a bit of upward pressure with your foot, off the throttle, and it should go into gear nicely).
Clutchless down-shifting however, is a definite no-no - it's a good way to damage your gearbox.
Good question mr phil,
I wondered when youd think of that!!!  im keen to find out about this also,
Scared of tearing my gear box apart by doing it all wrong,
Have tentatively attempted to nudge up a gear without clutch but the lever didnt seem too keen to move
Also interested to hear if this is only something that can be done during more spirited riding or does it also apply to toodling around town.
Easiest way to go fast........don't buy a blue bike
Cheers Noggy!
I've been trying it both tooding and when belting it a bit, it seems to work just fine (using the method that AdieR described), but wasn't sure what was best with all the conflicting advise on the web and the fact I can't hear the gearbox when I'm doing erm... 70mph...!
Down shifts I haven't tried and won't! Messed up a downshift on the learner bike, ended up doing without the clutch for some reason, sounded niiiiiice! Not! wouldn't want to put my own bike!
Thanks guys
...Oh Yeah!
Since the gearbox is a sequential box all the gears are spinning around at the same time, unlike in a car box where you have to spin up the next gear before selecting. Clutchless upshift is fine on a bike because of this, bit it can be done poorly if you dont practice. You'll find it will slot into gear alot easy at certain revs than others and should always be a slick, silent sounding gear change. If it grinds you've done it wrong! Downshifts with no clutch are a no-no (and practically impossible) and will result in damage. When I shift up I put a little pressure on the gear lever, a rock the throttle closed slightly (not fully closed just a few degrees back) and you'll simultaneously feel the gear lever click up into the next gear. You then accelerate as normal and whole thing takes a sec. Hope that helps!
(19-08-12, 07:32 PM)scottyboy2203 link Wrote:Since the gearbox is a sequential box all the gears are spinning around at the same time, unlike in a car box where you have to spin up the next gear before selecting. Clutchless upshift is fine on a bike because of this, bit it can be done poorly if you dont practice. You'll find it will slot into gear alot easy at certain revs than others and should always be a slick, silent sounding gear change. If it grinds you've done it wrong! Downshifts with no clutch are a no-no (and practically impossible) and will result in damage. When I shift up I put a little pressure on the gear lever, a rock the throttle closed slightly (not fully closed just a few degrees back) and you'll simultaneously feel the gear lever click up into the next gear. You then accelerate as normal and whole thing takes a sec. Hope that helps! Clutchless shifts are fine in a car too provided you're gentle. Had to do it when the clutch cable on the Seicento I was in snapped so it's definitely possible, just can't do it as fast as on a bike.
Totally agree Lawrence, had to do it with my Fiat when the clutch hose burst, it is far easier on a bike's box though with no need to match revs and get angry at the dude in front for stopping for no reason...
Good descriptions
I smell an excuse for a bike run coming up
Cheers geezers!
Easiest way to go fast........don't buy a blue bike
I practised quite a bit in my last company car, didn't mind when the gear box made grinding noises! wouldn't try it on my own motor unless I had good reason to!
Tried it most of the way to work this morning and it worked a treat, just need to adjust the gear lever to accommodate the new RST TracTech boots I've bought.
If I think of any other excuses for a ride out I'll let you know Noggy!
...Oh Yeah!
Ha ha nice one, company cars are the fastest cars!
Ive got those boots,good for the money, done me well so far,nice white ones to contrast wiv the furygans,
Not so good the rst gloves, sent them back,stitching worryingly coming out after first sign of my hand.
Easiest way to go fast........don't buy a blue bike
Yeah, I made that focus diesel into a rocket ship! strange when I too it in for a service and it cost £1300 to fix the clutch, flywheel, air conditioning compressor
I had the same thing with the tractech wp gloves. bought them from Sportsbikeshop.co.uk who accepted the return, only problem is they are a bit small in a Medium. The stitching has stayed fine though this time around.
I got the WP boots, nice and warm but man they make stuff small! I had to buy a size 13!
...Oh Yeah!
I only really use the clutch to set off and downshift, however I can downshift without the clutch if i just 'blip' the throttle as I do it. It has never made a clunk or crunch noise, so I am comfortable in doing it 
Went for a blast up the presseli hills this evenin to test this out,
Not bad, i managed it some of the time, lots of fumbling and dodgy revving the rest of the time if im honest,
Was chattin to someone else bout it and he reckons i should try completely closing the throttle each time
As i was only closing it a little bit,
So that'll be another excuse for a run,
For the time being though the fazer tucked up in bed with its kindle, hot water bottle and a mug o horlics!
Easiest way to go fast........don't buy a blue bike
good to hear it noggy! You should be ok just rolling off slightly, idea is to reduce the torque load to the gearbox so shifting is smooth
Im all over it next time :b
Its too cool not to be done
I wish they had tought bike science at school, cheers dudes!
Easiest way to go fast........don't buy a blue bike
Woops, I've been downshifting but don't think I will be anymore. For those who are interested I had the throttle fully closed at the time.
thou shalt not kick
(19-08-12, 04:49 PM)AdieR link Wrote:Clutchless up-shifting can be useful and smooth, but takes a bit of practice to get it spot-on (a bit of upward pressure with your foot, off the throttle, and it should go into gear nicely).
Clutchless down-shifting however, is a definite no-no - it's a good way to damage your gearbox. bollox is it, hamfisted downchanging yes but with practice it can be done.
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