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Material: aluminum, stainless steel
Claimed Weight: 1.8oz (52g)
Includes: 1 upper bearing, 1 stem top cap, 1 aluminum bolt, 1 star nut
Manufacturer Warranty: 1 year
For Trek frames with molded inner bearing cups Aircraft Grade 6061 Aluminum / Lightweight and Durable Headset with 3-Stage Custom Sealing Included with Enduro Stainless Steel Shield Bearing. Custom molded dual lip seals on crown race to protect bearings in extreme conditions Compatibility: Compatible with TrekKnockBlock System only; Material: 6061aluminum; Weight: 1.9 oz (52 g); Stack: 0.3 inches (7 mm); *Upper and lower sold separately.