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Custom 9.36 Opus Extreme   Back
Front: 42/32/22
Rear: 11-36
LowRatio: 0.61
HighRatio: 3.8
Range: 623%
LowInch: 16
HighInch: 103

This is a 9 speed and uses the popular CS HG200-9 cassette on the back, and the widely available Shimano M361 triple crank on the front.