TT CRANKSETS The second component designed by engineers at Campy Tech Lab is the new crankset with TT chainrings. Lab research has shown that, although the diameter of the TT chainrings is larger, the crankset is as rigid as the crankset with standard chainrings (53/39). This maintains optimal transfer of power from the pedals to the wheel via the chainring and the chain. The X.P.S.S. technology (Extreme Performance Shifting System) allows for consistently accurate and fast shifting, even under load. This is enhanced by the 8 upshifting and 2 downshifting zones of the chainring and the special design of the teeth. The TT crankset will be available for Super Record (also titanium spindle version), Record and Chorus in the 42/54 and 42/55 combinations.
AVAILABLE TT CHAINRING COMBINATIONS
X.P.S.S.
GROUPSET
COMPATIBILITY
COMBINATIONS
SUPER RECORD - TITANIUM
11 SPEED
42/54 – 42/55
SUPER RECORD
11 SPEED
42/54 – 42/55
RECORD
11 SPEED
42/54 – 42/55
CHORUS
11 SPEED
42/54 – 42/55
RIGIDITY
The F.E.M. analysis we made compare the rigidity of the 39/53 and 42/55 chainrings. The tests prove that the chainrings have the same rigidity values despite the larger diameter. Extreme Performance Shifting System