Bicycle Bottom Bracket GUB C-68 Ceramic Crankshaft 68 Thread Type BSA Crankshaft Bearing Bicycle Shaft

Bicycle Bottom Bracket GUB C-68 Ceramic Crankshaft 68 Thread Type BSA Crankshaft Bearing Bicycle Shaft

Description:

• GUB C-68 aluminum alloy bearing bicycle shaft
• Specifications: Five-way inner diameter 24mm 68mm
• One sprocket compatible with SHIMANO FSA
• Mountain/Road Bike
• Color: black, red, blue, titanium alloy
• Weight: 120g

Feature:

• Almost not afraid of corrosion-Ceramic rolling bearings are suitable for use in harsh conditions with corrosive media.
• The density of ceramic balls is much lighter than the density of steel-the centrifugal force of the outer ring can be reduced by 40% when rotating.
• The life span is greatly extended.
• Ceramics are less affected by thermal expansion and contraction than steel-bearings can work in environments with severe temperature differences.
• The elastic modulus of ceramics is higher than that of steel
• It is not easy to deform when stressed, which is beneficial to increase the processing speed and achieve higher accuracy.

Package:

• 1 x crankshaft