– Recommended for Bushings and Bottom Bracket Boxes.
– Zero bearings have ceramic bearings and tracks in steel.
– Grade 3 Si3N4 (Silicone Nitride) balls are the roundest balls without a military license.
– Si3N4 balls are the hardest, most elastic and lightest on the market.
– Durable and resistant to oxidation thanks to its black anti-rust treatment
Color: Silver
Product Type: Bearings
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