T66
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| posted on 22/11/09 at 01:20 PM |
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Quickshifters -Push or Pull?
When you read adverts for these things, ie linked to PC3 it generally states push or pull.
Am I correct in thinking with bikes this is pertinent, but not so a BEC where the solenoid can be positioned appropriately to operate the gearchange
?
Also if its "push" only does it only do for example upchanges ?
Ive been nightshift so go easy on me !
It doesnt make sense...
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minitici
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| posted on 22/11/09 at 04:16 PM |
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A lot of quickshiters are still manual shift but with electronic gizmos to allow clutchless full throttle upshifts.
Slightly more sophisticated ones include a throttle blipper for clutchless downshifts.
The 'push or pull' usually refers to the direction you need the gear change link rod to move to shift up.
There is a microswitch/ load cell built into the actuating rod to sense when to bring in the ignition cut - this can be for a push or a pull.
The systems with both up and down shifts sense in both directions.
Then there are actuated gear shift systems using stepper motors, solenoids or pneumatic shifter.....
[Edited on 22/11/09 by minitici]
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hobbsy
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| posted on 22/11/09 at 04:49 PM |
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If its one that does both then it doesn't matter which direction is an upshift or downshift - you can just switch the wires to suit.
If its one that only deals with upshifts then i guess it may be built to only sense compression or tension so you need the correct one to suit your
setup.
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T66
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| posted on 22/11/09 at 04:59 PM |
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Ok , so like I said the type of shifter whether its push or pull is actually about which way its mounted relative to the gear shaft ?
So on a Blackbird gearbox I could use a quickshifter push or pull system, as long as I mounted it the correct way to work the gearbox both up &
down.
Can the blipper be added at a later date ?
Im looking at used setups from other bikes to link into a PC3 to work on a Blackbird.
Whether this is locost or false economy I need to research further.
thanks
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grazo
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| posted on 17/10/10 at 05:28 PM |
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Flatshifter do the system that enables clutchless up and down gearshifts also electric gearshift systems with paddles
graz
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