RITCHEY COMP CARTRIDGE SEMI INTEGRATED ZS LOWER HEADSET electric_full_suspension Swissstop offers the best braking

Swissstop offers the best braking performance in all conditions for all types of bike

and you can rest assured that

any tubeless valve

and a USB-C port for charging devices

RITCHEY COMP CARTRIDGE SEMI INTEGRATED ZS LOWER HEADSET electric_full_suspension Swissstop offers the best brakingThe CroMo Ritchey Comp Cartridge Semi Integrated ZS Lower Headset features full complement stainless steel angular contact titanium coated, sealed cartridge bearings packed with Ritchey high webbing grease. Specification Material: Alloy Stack height: 2. 8mm Headtube OD ID: 50 44, 55 49, 61 55, 62 56mm S. H. I. S.: ZS42 30 (1 ), ZS49 33 (1 ), ZS55 40 (1. 5"), ZS56 40 (1. 5") ZS42 30 (1") bearing41 30. 15 7mm 45 45 sealed cartridge (ACB) ZS49 33 (1 )