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Italian-threaded
bottom bracket shells are typically found on Italian-brand road bikes. The
shell measures 70mm wide and has a 35mm inner diameter.
This kit has
all the pieces necessary to install 24mm diameter spindle cranks into an
ITA shell. Those cranks come from Shimano, FSA, and others.
CeramicSpeed
bearings pressed into threaded cups, then threaded into the frame. Those
bearings comprise either Standard or Coated Bearings. Super round, super
smooth CeramicSpeed balls rotate in hardened-steel races in both. The
Coated version has a metallic coating laid onto the races, making them even
harder and smoother, resulting in longer life and lower drag.
Tech Data
ITA bb’s,
thanks to the popularity of Italian road bike design, still have a
following. The drive-side cup needs to be properly secured, but once that’s
done, the system is excellent. 24mm cranks work better when mated to our
bearings.
To have your
bike as efficient as possible, reduce mechanical drag. Bottom brackets have
a measureable effect on speed. CS balls are 100% smoother and 15% harder
than the ceramic competition. They run on smoother races, too. They reduce
the drag of our Standard Bearing bb’s by 75% when compared to typical
bottom brackets. The bearings last at least 3x longer than other bearings.
These bearings
come packed with All Round Grease. If you want less drag and are riding in
cleaner environs, install lowest drag TT and Track Grease. If you’re riding
in wet conditions, more durable LongLife Grease can be put in.
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