DESCRIPTION
Option:
1, BB-RS500
2, SM-BBR60
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Model: BB-RS500
Type: Hollowthch II
Shell thread: BC1.37" x 24T
Shell width: 68-70mm
Weight: apprx 90g
Sealed cups keep out dirt and water
Maintenance free, easy installation
Durable cups anodized finish
New seal construction for long-lasting performance
Fits crankset model: Claris/Sora/Tigra FC-R2000,FC-R3000,FC-4600,FC-4700,FC-R350,FC-3550..
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Model: SM-BBR60
Type: Hollowthch II
Shell thread: BC1.37" x 24T
Shell width: 68-70mm
Weight: apprx 80g
Sealed cups keep out dirt and water
Maintenance free, easy installation
Small ball bearings keep weight low
With reliable SHIMANO bearings and seals
Fits crankset model: 105/ULTEGRA/GRX FC-5800,FC-R7000,FC-R8000,FC-6800,FC-U5000,FC-CX70..
