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FSA Patterson Metropolis internally geared cranksets

The Patterson Drive takes an existing drivetrain and gears it all up by 60% when needed. This makes a 28-tooth (28T) chainring feel like a 45-tooth (45T) chainring.

It gives you higher gearing for higher speeds.

Unlike the Schlumpf Speed-Drive (which uses a kick-button to shift gears), the Patterson Metropolis uses a conventional shifter to change gears.

This involves a shift cable, cable, housing, and a shifter. However, for people with limited foot strength or mobility, it might be the best solution.

The Patterson Drive is available in a 28-tooth (28T) configuration with integrated chainring guard.

The Patterson Drive uses a conventional English-thread external bearing bottom bracket and requires no extra machining for installation.

Other FSA internally geared cranksets


Other internally geared cranksets brands

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