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Legacy CeramicSpeed BB Bearing Upgrade Kit – 2006 Campagnolo Record/Chorus 2x 61803 1x 61903. NEW – With Original Packaging. CeramicSpeed 2006 Upgrade Kit. For vintage 2006-era Campagnolo Record and Chorus square-taper cartridge bottom brackets uses an asymmetrical 3-bearing layout. Instead of standard steel components, this high-performance kit replaces the internals with hybrid ceramic alternatives to minimize friction. The 2006 Campagnolo Record/Chorus 102mm (and 111mm triple) cartridge bottom brackets are famous for utilizing three separate cartridge bearings rather than two, maximizing rigidity on the high-load side. 2x 61803 Bearings: Positioned on the drive side (chainring side). They are stacked adjacent to each other to share the heavy chain loads and prevent spindle flex. 1x 61903 Bearing: Positioned on the non-drive side. Model: Campagnolo Record/Chorus 2006 Bottom Bracket Upgrade Kit. Part Type: Bottom Bracket Bearings. Compatible Bike Type: Road Bike, Racing Bike, Time Trial/Triathlon. Condition: New in original packaging (New Old Stock / NOS). 2x 61803 (6803) CeramicSpeed Hybrid Bearings (Drive side, 17x26x5mm). 1x 61903 (6903) CeramicSpeed Hybrid Bearing (Non-drive side, 17x30x7mm). Original CeramicSpeed low-friction seals. Original CeramicSpeed syringe grease.

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