Enduro HS Bearing 1.5" 42 x 52 x 6.5 45x45° SS Variant:Enduro Headset Bearing 1.5" Stainless ACB 4545 4252 SS 42 x 52 x 6.5 mm 45x45deg (Acros ICR AC4252 ACB4252H7) very fast race days

very fast race days

No added cane sugar

Calcium (as Calcium Gluconate) 10 mg

Narrow design for maximum thigh clearance

Easy-to-install system stacks hydration and ride data into one simple design

Enduro HS Bearing 1.5" 42 x 52 x 6.5 45x45° SS Variant:Enduro Headset Bearing 1.5" Stainless ACB 4545 4252 SS 42 x 52 x 6.5 mm 45x45deg (Acros ICR AC4252 ACB4252H7) very fast race daysACB 4545 4252 SS 1 1 2 440C stainless steel Angular Contact Headset bearing (42mm x 52mm x 7mm; 45 x 45deg) Angular contact headset bearing featuring 440C stainless steel balls and races for superior corrosion protection. This size bearing has been used as an upper bearing for Acros headsets that are designed specifically for aero cable routing, and is also know by part numbers AC4252 and ACB4252H7 Not all stainless steel is created equal. Enduro only