Press Fit Hollow Bottom Bracket For BB30 68/73mm Frames With For 30mm Shaft Compatibility For Road And Mountain Bikes

Features:*Press-fit Type: Compatible with length 68/73mm and inner diameter 42mm bike frame for easy installation.*30mm Inner Diameter: The bottom bracket is suitable for 30mm diameter crank shaft core.*4 Sealed Bearings: Equipped with stainless steel sealed bearings for long-lasting performance. *Lightweight Design: Made of CNC aluminium alloy, and weighs about 110g.**It adopts a middle threaded locking design, which is more adaptable to the tolerances of various frames than the traditional press fit bottom bracketSpecifications:*Product Name:Press-fit Hollow Bottom Bracket *Material:Aluminum alloy, stainless steel bearing*Color:Black*Size:Outer diameter 42mm, inner diameter 30mmPackage Content:1* Press-fit Hollow Bottom Bracket

• PACKAGE CONTENTS: Single press fit hollow bottom bracket compatible with 68/73mm shells and 42mm outer diameter, built for crank shaft core installations and ready for press-fit assembly.
• SIZING REMINDER: Designed for frames with 42mm shell ID; CHECK YOUR FRAME MEASUREMENTS, NOT AMAZON'S SIZE CHART to confirm 68mm or 73mm shell length compatibility.
• SMOOTH ROTATION: Equipped with four stainless steel sealed bearings to lower friction, stabilize pedaling feel and limit debris ingress for extended service intervals.
• LIGHTWEIGHT BUILD: Machined from aluminum alloy with a hollow profile, weighing approximately 110g to reduce drivetrain mass while maintaining support.
• ADJUSTABLE LOCKING SYSTEM: Middle threaded lock mechanism accommodates frame tolerances better than traditional press-fit , improving fitment and reducing noise across road and off-road bikes.