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clear viewing even in bright outdoor conditions
A larger rear sprocket increases torque and acceleration
If you're upgrading to Photon Gen 2 or building a fresh system
104 BCD spider – compatible with standard aftermarket chainrings
which indicates the current speed
CYC Gen 3/4 ISIS Spindle for X1 Pro Mid-Drive E-Bike Cranksets (Heavy-Duty Steel) Bottom Bracket Option:BB92/100mm clear viewing even in brightThe Gen 3 4 ISIS Spindle is a high quality, precision engineered spindle designed for CYC Gen 3 and Gen 4 cranksets. Made from durable structural steel, it provides reliable performance and long lasting strength, even under the most demanding riding conditions. Compatibility Compatible with X1 Pro Gen 3 and Gen 4 cranksets Inclusions 1 Gen 3 4 ISIS Spindle PRODUCT NUMBER 293
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