RITCHEY WCS SEMI INTEGRATED ZS LOWER HEADSET electric_full_suspension GRX ST-RX810-LA

GRX ST-RX810-LA

which is pinned at the joint

A vital aid for building or truing rims that use Squorx nipples and PHR washers

8 mm chain line

RITCHEY WCS SEMI INTEGRATED ZS LOWER HEADSET electric_full_suspension GRX ST-RX810-LADesigned for bicycles with semi integrated headsets, the WCS Semi Integrated ZS Lower Headset features full complement angular contact cartridge bearings packed with Ritchey high webbing grease. Specification Material: Alloy Stack height: 2. 8mm S. H. I. S.: ZS42 30 (1 ), ZS49 33 (1 ), ZS55 40 (1. 5"), ZS56 40 (1. 5") Headtube OD ID: 50 44, 55 49, 61 55, 62 56mm ZS44 30 (1") bearing: 41 30. 15 7mm 45 45 sealed cartridge (ACB) ZS49 33 (1 ) bearing: 46