Clutchless change up

[micron750]

For the first time the other day i tried changing up without using the clutch don't know why it just seemed a good idea at the time and was supprised how smoothly the gears changed.
Maybe its a daft question but will this damage the gearbox as all seemed well no clunking of the gears etc,or is this type of chamge up best seved for the track?

[randlemarcus]

Clutchless upshifting is fine, and the gearbox is designed to do it. Dont do it on the downshift, or you'll knacker the clutch basket.
Personally, I dont do it below third, but thats just me..

[chilli]

Yep, I do this most days....don't mean to, just get too eager with the pedal!

[randlemarcus]

chilli said:

Yep, I do this most days....don't mean to, just get too eager with the pedal!

Now try it at 13000

[chilli]

randlemarcus said:

chilli said:

Yep, I do this most days....don't mean to, just get too eager with the pedal!

Now try it at 13000

Hmmmm....that would be interesting.....What would happen? Front wheel up, and me off the back?

[randlemarcus]

Front wheel might hover a smidgeon, but only in a MotoGP styley, rather than a buge air time. It demonstrates quite clearly the speed advantage of the clutchless change, and creates a very smooth acceleration.

[chilli]

randlemarcus said:

Front wheel might hover a smidgeon, but only in a MotoGP styley, rather than a buge air time. It demonstrates quite clearly the speed advantage of the clutchless change, and creates a very smooth acceleration.

Still sounds enough for me to shat myself and fall off.....
must remember the clutch, must remember the clutch...

[DennisTheMenace]

The passat crunches when i try it ? works well on a bike when making progress

[hobo]

chilli said:

randlemarcus said:

Front wheel might hover a smidgeon, but only in a MotoGP styley, rather than a buge air time. It demonstrates quite clearly the speed advantage of the clutchless change, and creates a very smooth acceleration.

Still sounds enough for me to shat myself and fall off.....
must remember the clutch, must remember the clutch...

Nothing happens, believe me.

[BobM]

DennisTheMenace said:

The passat crunches when i try it ? works well on a bike when making progress

Different gearbox design. Bike gearboxes are dog boxes, rather than having teeth on the circumference of the gears which mesh together they have pegs and slots on the faces. Difficult to explain but this pic from when I rebuilt my kitcar Blade gearbox might help:

[denisb]

Hewland recommend ONLY doing clutchless changes on dog boxes. Using the clutch just damages the dogs.

[rsvmilly]

DennisTheMenace said:

The passat crunches when i try it ?

You need to match the revs between gears, before you push the gear lever into the gear.

Good old company cars!!

[dirkgently]

rsvmilly said:

DennisTheMenace said:

The passat crunches when i try it ?

You need to match the revs between gears, before you push the gear lever into the gear.

Good old company cars!!

That’s all you have to do with any cluchless change up or down, down is trickier, but get it wrong on a four cylinder six hundred with a stroke the length of a nats cock and you’ll probably not notice, get it wrong on a Manx Norton and the back wheel will lock solid and probably sling you down the road for good measure.

[DennisTheMenace]

This ones a full on renter , while mines being restored it can takes extra abuse

[micron750]

Did not think it was a good idea to try changing down without the clutch as i did like the thought of the rear wheel locking,to be honest me woman prefers the change up that as the fall in revs is not so noticable and she said it sounded better[good girl ]too,as long as no damage occurs i think i'll carry on this way many thanks for the comments

[rsvmilly]

DennisTheMenace said:

This ones a full on renter , while mines being restored it can takes extra abuse

The fastest cars in the world

[rsvmilly]

micron750 said:

Did not think it was a good idea to try changing down without the clutch as i did like the thought of the rear wheel locking,to be honest me woman prefers the change up that as the fall in revs is not so noticable and she said it sounded better[good girl ]too,as long as no damage occurs i think i'll carry on this way many thanks for the comments

Suzi gearboxes are some of the smoothest about and clutchless changes, moreso. At least that was the case with my K1

[oggs]

Must try this when I get one

[randlemarcus]

oggs said:

Must try this when I get one

:informspolice,starts to clear the streetsinfear: That'll be nice.. :/runsaway:

[treehack]

up changes are easy,do em all the time be it mini bike or yzf750 or anything inbetween.going down the box is a differant kettle of fish.only thing i can ever do it on is my wr400 off roader,tiny blip and a bit of presure on the gear lever is alll thats needed.comes in handy on long steep climbs.i can do it on the yzf but needs to be perfect timing (down changes that is)but can't see it serves any usefull purpose so don't tend to do it