40-Series Tapered Conversion Set (1-1/8" Crown Race) ZS44|EC49/30 socks & footwear accessories Features 13-tooth upper and 19-tooth

Features 13-tooth upper and 19-tooth lower

and lockable for added security

Approximate Weight - 700x26c

Even further

Total jersey weight is ~40% lighter than the standard Prime Jersey

40-Series Tapered Conversion Set (1-1/8" Crown Race) ZS44|EC49/30 socks & footwear accessories Features 13-tooth upper and 19-tooth40 Series Represents the Perfect Balance of Performance, Durability and Value Internally Contoured 6061 T6 Aluminum Cups and Cover Innovative Clip Seal Seals the Top Assembly and Captures the Compression Ring Interlok Spacer Compatible Sealed Black Oxide Steel Cartridge Bearing Consistent Stack Heights Across 10, 40 and 110 Series Internal Parts Are Cross Compatible Across 10, 40 and 110 Series