How do quickshifters work?

[pete376403]

I read of a system many years ago that was on a CB750 sidecar used by a guy whose legs were stuffed. A micro switch in the clutch lever operated a solenoid for shifting, the indicator switch was rewired to control the direction of shift (up or down). Nothing flash, but it worked.

[nzspokes]

I read of a system many years ago that was on a CB750 sidecar used by a guy whose legs were stuffed. A micro switch in the clutch lever operated a solenoid for shifting, the indicator switch was rewired to control the direction of shift (up or down). Nothing flash, but it worked.

Thats smart.

[rastuscat]

Best quickshifter I ever used was Peter Fatiolofa.

Sniffle.

[nzspokes]

Good man, what's the level of disability? Might be able to help out with a few parts or designing if you need it.

Thread dredge but this is underway now. The said bike is being rebuilt over the next couple of months. System is stupidly simple. I will be trialing it on my bike to ensure it works. To be fair it may stay on my bike and another made for the CBR.

Disability is a fused ankle and lack of flexibility in the left leg so normal shifting just wont work.

Neither will standard quickshifters as this is going on an old carbed bike.

[mossy1200]

Thread dredge but this is underway now. The said bike is being rebuilt over the next couple of months. System is stupidly simple. I will be trialing it on my bike to ensure it works. To be fair it may stay on my bike and another made for the CBR.

Disability is a fused ankle and lack of flexibility in the left leg so normal shifting just wont work.

Neither will standard quickshifters as this is going on an old carbed bike.

Not sure how you plan to throttle blip a downshift on a carb bike.

I assume you are now trying to move the gear shifter but still let rider use throttle control and manually pull clutch lever.
This would mean its not really a quickshift kit just a automated gear change.

[Kickaha]

Neither will standard quickshifters as this is going on an old carbed bike.

Quickshifters were around well before Injection became standard, they're not hard to find for carbed bikes

[nzspokes]

Not sure how you plan to throttle blip a downshift on a carb bike.

I assume you are now trying to move the gear shifter but still let rider use throttle control and manually pull clutch lever.
This would mean its not really a quickshift kit just a automated gear change.

Agreed, I was calling it the wrong name by the looks. But they can kick the stock shifter down for a down shift so all we need is an upshifter. Will have the foot gear lever at more of a trail bike height.

[mossy1200]

Agreed, I was calling it the wrong name by the looks. But they can kick the stock shifter down for a down shift so all we need is an upshifter. Will have the foot gear lever at more of a trail bike height.

http://www.ebay.com/itm/Biondo-Racin...-/331372326441

He will need shift to neutral down from 2nd manually.
As long as you leave clutch and throttle stock and use it just for up shifting the shifter should be fine. Same as a normal shift just bypass the foot movement. Idd button on the rt side in a position that suits a slight throttle off on the hand and activate with thumb.

[nodrog:Me]

What you want is a Pingel

no shit........

[nzspokes]

http://www.ebay.com/itm/Biondo-Racin...-/331372326441

He will need shift to neutral down from 2nd manually.
As long as you leave clutch and throttle stock and use it just for up shifting the shifter should be fine. Same as a normal shift just bypass the foot movement. Idd button on the rt side in a position that suits a slight throttle off on the hand and activate with thumb.

Hmmm, wonder if you could use the starter button for that and mount a second starter button.

[mossy1200]

Hmmm, wonder if you could use the starter button for that and mount a second starter button.

Wiring would be easier if you used small button and wire it to a relay. Get the relay to take the load not your switch.
There will be plenty of momentary on waterproof buttons available that you could custom bracket to the correct spot to easy switch.

[Kickaha]

no shit........

Pingel are fucking rubbish compared to the decent stuff like translogic

[nzspokes]

Wiring would be easier if you used small button and wire it to a relay. Get the relay to take the load not your switch.
There will be plenty of momentary on waterproof buttons available that you could custom bracket to the correct spot to easy switch.

Yes I would relay it. Will have a think about the electric options. Question on the one you posted is how would it cope with backwards movement with a down shift?

[mossy1200]

Yes I would relay it. Will have a think about the electric options. Question on the one you posted is how would it cope with backwards movement with a down shift?

Looking at its design idd say its normal state is pulled in (activated) and the spring fires it onto the shifter. You would set it with room(empty air gap) for the down shift.
You would need a normally closed switch or a normally closed secondary clean contact on the relay. The second would be the better way.
There would be some adjusting to get location perfect.

[nzspokes]

Looking at its design idd say its normal state is pulled in (activated) and the spring fires it onto the shifter. You would set it with room(empty air gap) for the down shift.
You would need a normally closed switch or a normally closed secondary clean contact on the relay. The second would be the better way.
There would be some adjusting to get location perfect.

I would presume it would have a reasonably strong push so I could mount it close to pivot point to get the free play. Not something I have ever played with so interesting.

Thanks for that.