Can anyone explain actuation in gears?
ricktabor1
Posts: 272
Can anyone explain 1:1 actuation / 2:1 actuation and why 1:1 is better?
Got to get up to get down
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1:1 means that for every millimetre of cable the shifter pulls, the mech moves the same. 2:1 means that the shifter pulls 2mm for every 1mm of mech movement.
1:1 requires shorter lever throws and allegedly is more tolerant of poor setup.
In real life it makes sod all difference!0 -
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njee20 wrote:1:1 means that for every millimetre of cable the shifter pulls, the mech moves the same. 2:1 means that the shifter pulls 2mm for every 1mm of mech movement.
1:1 requires shorter lever throws and allegedly is more tolerant of poor setup.
In real life it makes sod all difference!
Tother way round for Shimano - the shifter pulls 1mm of cable for every 2mm of mech movement ;-)0 -
Damn! Knew I'd do that...0
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Look out next year for Sonic Sramano gears - 2:3 actuation ratio for the best of both worlds!0
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Nice one
Suddenly everything becomes clear.Got to get up to get down0 -
Surely 1:1.5 would be more bettersupersonic wrote:Look out next year for Sonic Sramano gears - 2:3 actuation ratio for the best of both worlds!
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