SENSAH Carbon Fibre Road Bike Shifters Double 2×11 Speed Lever Brake Bicycle Derailleur Groupset Compatible for Shimano

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About SENSAH Carbon Fibre Road Bike Shifters Double 2×11

The mechanism is similar to 'double tap' from another brand, but the shifters aren't identical to those---There aren't multiple lever paddles, there is elegantly only the one lever that operates the brake, and in the manner described ahead, also operates the shifting. Actually nice to use. -On the right/rear lever, to shift to low (easier) gear, you give a strong push of the entire brake lever inward, that is, toward the centerline of bike. To shift back toward a higher (harder) gear, you press with less force/intention and this lets the chain drop down to harder and harder cogs, the more times you do this lighter motion. The rider will learn very fast the difference between a gentle push and a harder push. It's brilliant, and makes for a lighter lever assembly since it lacks fewer pieces; no secondary paddles. For the left/front derailleur similar method applies, but the harder sweep gets you a bigger, higher gear (the big chainring) whereas the gentle tap or push will drop chain down to inner, (easier) chainring. The left lever does have 'trim' ability, that is, the ability to fine-tune the alignment of the front derailleur cage over the chain by doing micro nudges to the lever. This lets one compensate for the changing path the chain takes when angling from different parts of the rear sprocket cassette, and quiets down spurious rubbing without making a full shift motion