Quick Shift
 

Hi all, currently out on the South of France on 2 bikes MV Augusta kindly loaned us, amazing!

Anyway, one feature of these are the quick shift gearbox and I think I’ve fallen in love with it. Is such a thing available for the SV650 2016? It’s not essential but it is nice!!!


https://uploads.tapatalk-cdn.com/201...708c707bd4.jpg


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Re: Quick Shift
 

You lucky get, I'm GREEN with envy.

Power Commander and others do aftermarket quickshifters.

On a personal note, I love the front end and the pipes on the Dragster. But I cannot stand the current vogue for tail-less bikes. To my eyes, it's fugly.

Re: Quick Shift
 

They look great! But not so comfy to ride after a long day but then I guess not many are! I’m still loyal to the 650 though..... love my machine!

Aftermarket would be good I think.....has anybody done this?


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Re: Quick Shift
 

Healtech QS

Re: Quick Shift
 

Mate of mine fitted one years ago, can't remember the model. You replaced the shift rod in the external linkage (left foot) with a new one that incorporates a switch. When you shift up, it cuts the ignition for a short, adjustable amount of time. I don't know about the MV but some bikes with factory ones also have an auto-blipper for downshifts, but you can do that yourself! That would be near impossible to add in unless Power Commander etc. do it as part of the ECU box.

Re: Quick Shift
 

Very possible but highly expensive :eek: In excess of £500 when I looked so I settled for the upshift only (I can downshift if I want but don't)

Re: Quick Shift
 

The gearchange on a bike is still 10x quicker than a car it is one of the things I notice when I swap the cage for the SV, if you roll off the throttle slightly you can do clutchless up changes anyway as the SV box is constant mesh ( which means all gears are in mesh all the time and you just shift some dog clutches around with gear lever ) and I kinda like blipping the throttle on downshift.

http://www.rrrtoolsolutions.com/arti...-why-it-works/

Constant mesh means you don't break gear teeth as the rugged dog clutches take all the punishment. Car boxes are generally synchromesh which means only one set of gears engaged at a time and you have synchro cones to match the speed of gears when you change gear.

Re: Quick Shift
 

Never really understood quick shifters on bikes myself. As you say pin throttle back and preloaded next gear and as soon as you drop off the throttle you are in the next gear up.

Down shifting I never need to do it so quickly and without the clutch anyway. Rather it was smooth on the down shift to stop in balances personally.

Re: Quick Shift
 

The gearbox and Clutch on my 99 are so smooth it's almost like having an,"Automatic" gearbox anyway :D

Re: Quick Shift
 

Quick shifters are OK for the racing boys where every fraction of a second counts, but on the road ? just another thing to go wrong.

Re: Quick Shift
 

How so?

Re: Quick Shift
 

The quick shift has to be wired into ignition / ECU circuit to cut power when gear lever is operated - any extra sensors, switches or connections are a potential source of problems. You can change up easily without clutch anyway, and a quickshifter that is able to blip the throttle on downshift is £££'s - and even more connections to go wrong.

Re: Quick Shift
 

The entire bike is wired to the ECU, a couple extra wires is miniscule on the grand scheme of things**. They even come as standard from factories :p

**I'm saying this having recently retrofitted integrated cruise control, on top of a quickshifter I've had since I got the bike (Tracer 900)

The healtech QS for example, simply piggybacks the coils and cuts the spark - the laborious element of that setup is configuring delay and cut times, not the installation. If anything is going to break it's the bluetooth module, which does not prevent the bike being used as normal with clutch

Re: Quick Shift
 

Everything is something to go wrong, that's just pessimism. You're placing a lot of strain on the gearbox by shifting under load, that's the whole point of the quickshifter, to momentarily reduce the load. With CV carbs it means the slides don't fall then rise again, less of a big deal in that respect with FI.
People do do clutchless downshifts but to my mind it's pointless, better to blip, and with a bit of practice you can do it very quickly anyway. You wouldn't use a simple quickshifter for downshifts as the loss of power makes the revs drop, which would make it worse not better.

Re: Quick Shift
 

Wouldn't be without my QS .
Use it even when not pinning the throttle.

Re: Quick Shift
 

Ive got a HM quickshifter and i love it, easy to fit and not a bad price

Re: Quick Shift
 

FWIW any remotely modern car gearbox is constant mesh as well, the difference is instead of dog clutches there are synchroniser hubs. You have to go back many years to the days of "crash boxes" to get a non-constant mesh gearbox.

Re: Quick Shift
 

Yes you are right, here is a link that explains dog clutch and sychro cones

https://www.quora.com/What-is-a-sync...t-mesh-gearbox

Re: Quick Shift
 

Dogs can still be damaged, but also the shifter forks operating under higher than normal load