eatures:

• HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
• HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability
• Use TLFC37 or TLFC25 in conjunction with TLFC36 adaptor tool for installation and removal
• Compatible with all Shimano Hollowtech II road cranks
• New sealing system reduced drag by 50%

Specifications:

• Recommended Use: Road cycling and racing
• Material: Aluminium cups and Steel Bearings
• Shell Type: Extrernal
• Thread: English / Italian
• Shell Width: 68mm (Eng) / 70mm (Ita)
• Weight: 77g

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