Gen 3, 4 and Photon Left Bottom Bracket Cup

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Includes 1x left bottom bracket cup. See below for lengths measured from end to end. Many are confused what size is needed. Keep in mind anytime a bottom bracket cup size is change d, a spindle is also necessary to match among other items like a motor hanger and side bracket depending on fit. Contact us when in doubt prior to purchasing so we can properly advise you. OVERALL LENGTHS BELOW 68/83 = 3-5/18” or 83mm BB92/100 = 4” or 100mm 120mm = 4-3/4” or 120mm Show more