IRD’s top level JIS square taper bottom bracket
– High polish finish
– Japanese sealed cartridge bearings
– POM industrial seals
– CNC-machined A6061 aluminum cups
– SCM415 chromoly spindle
– Ten year warranty
– Made in Japan
IRD’s top level JIS square taper bottom bracket
– High polish finish
– Japanese sealed cartridge bearings
– POM industrial seals
– CNC-machined A6061 aluminum cups
– SCM415 chromoly spindle
– Ten year warranty
– Made in Japan