Installing a CYC Photon Pro takes an afternoon and basic bike tools. You pull the cranks and old bottom bracket, slide the motor into the shell with the right spacers, lock it in with the left cup, then fit the...
The CYC X1 Pro Gen 4 fits most bikes with a 68, 73, 83, 100 or 120mm threaded bottom bracket, plus BB92 press-fit. Whether it fits yours comes down to three things: the bottom bracket version you order, how the...