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raleigh-twenty-8-06

Another advantage of the Sturmey-Archer 8-speed is the unusual gearing it offers. The bottom gear is direct drive, all of the other gears are "step-up" gears. This makes this hub especially well suited for bikes with small wheels. I'm running it with a 48/25 ratio, giving the following gearing:

Gain Ratios: 2.8 3.5 4.0 4.5 5.1 5.8 6.6 8.4
Gear Inches: 36 46 52 59 68 75 85 109
Meters: 2.9 3.7 4.2 4.7 5.3 6.0 6.8 8.8

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