SIS Drive splined bottom bracket designed for track or other fixed/singlespeed applications. Flangeless forged aluminium cups allow fine adjustment of chainline for maximum drivetrain efficiency. MegaQuad bearing setup uses a pair of double-row full-complement sealed cartridge bearings for excellent axle support and stiffness.
All-Purpose - strong and stiff
Forged hollow Chromoly steel spindle for ISIS Drive
Integrated large ball bearing design
Cold forged aluminium cups
Composite anti-creak sleeve
New improved external water seals
Chromoly M15 bolts
Finish: Blue Anodized
Electroless nickel coated spindle
Sizes: 68mm x 108mm
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