Machined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear.

• Replaceable Enduro bearings
• Made in the USA
• ZERØ Ceramic sealed bearings
• Oversized Grade 3 balls roll on races which are ground to a mirror finish after receiving Magnetite and then Cryogenic treatments for hardness and longevity
• Silicone VV-type 2-lip non-contact labyrinth seals for excellent bearing protection with minimum friction
• Long-lasting Rheolube synthetic grease helps prevent contamination
• Nylon/graphite retainer to further minimize friction