Enduro - Bearing 608 ABEC3 Tools Pumps & Maintenance but the engineering inside this

but the engineering inside this incredible chain design that makes possible a gear range previously found only in 2-chainring drivetrains

5/92-24 Manufacturer: Shimano Parts Item Code: SHI223923 activity: Bike usage bikesport: MTB bottom bracket construction: Pressfit case diameter: 41mm weight: 68g manufacturer item code: IBBMT800PA

to decrease friction and minimize wear

Very light comfort style saddle

Enduro - Bearing 608 ABEC3 Tools Pumps & Maintenance but the engineering inside thisABEC 3 radial bearing with 8 mm inner diameter, 22 mm outer diameter, 7 mm thickness and double lip type sealing with light contact, making a labyrinth seal. ABEC 3 bearings use grade 10 Chromium Steel Balls and 52100 High Carbon Chromium Alloy Races. The high precision balls are within 10 1. 000. 000 round, twice as round as the industry standard, at it's highest level. The alloy races are made from a vacuum de gassed process for the purest chromium