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BSA is another way of stating English threading; it comes from
British Standard Cycle. English threading on road bikes mean a 68mm wide,
34mm inside diameter shell with reverse threading on the drive side. It’s
the most common threaded standard employed today. This kit works with 24mm
diameter thru-axle cranks, found on Shimano, FSA, Rotor, among others.
Choose between two bearings for the cups. Standard Bearings have low
drag thanks to hardened-steel races and our Ceramic balls. Coated Bearings
have those same balls installed on coated, hardened-steel races for longer
life and less bearing drag.
TECH DATA
English threading is easy to work with and
the drive side cup, thanks to being reverse-threaded, stays in place
without extra effort. 24mm spindles easily fit through the shell, allow for
large bearings to be employed in the outside cups.
Put more of your energy into forward motion by reducing frictional
drag wherever you can. CS Standard Bearings typically have frictional drag
of 0.3-0.4 watts per set. That’s in the range of a 75% drag reduction
compared to standard bottom brackets. CS balls are 100% smoother and 15%
harder than ceramic competition. The bearings last at least 3x longer than
other bearings.
TT and Track, All Round, and LongLife are greases CS designed to help
the bearings roll smoothly. The first is the least drag, the last is the
most durable. All Round comes in road bearings, LongLife in MTB. You can
change the grease to tune performance.
English threading is easy to work with and the drive side cup, thanks
to being reverse-threaded, stays in place without extra effort. 24mm
spindles easily fit through the shell, allow for large bearings to be
employed in the outside cups.
Put more of your energy into forward motion by reducing frictional
drag wherever you can. CS Standard Bearings typically have frictional drag
of 0.3-0.4 watts per set. That’s in the range of a 75% drag reduction
compared to standard bottom brackets. CS balls are 100% smoother and 15%
harder than ceramic competition. The bearings last at least 3x longer than
other bearings.
TT and Track, All Round, and LongLife are greases CS designed to help
the bearings roll smoothly. The first is the least drag, the last is the
most durable. All Round comes in road bearings, LongLife in MTB. You can
change the grease to tune performance.
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