Vendo SRAM RED BLACKBOX GXP CERAMIC BEARING BOTTOM BRACKET

SRAM RED BLACKBOX GXP CERAMIC BEARING
BOTTOM BRACKET
Muy poco uso, como nueva. La vendo porque las
truvativ noir no entran en la epic que es BB30 y a
las noir les puse la caja team que es la original .
Con la caja ceramica como dicen amigos mios es
otro andar requiere 78 % menos energia que la de
la team y que las shimano .

The SRAM BlackBox GXP ceramic bottom bracket
exceeds the standards of even the most demanding
rider. The SRAM Blackbox GXP bottom bracket's
ceramic bearings are 10% lighter than standard
steel bearings and require an astonishing 78% less
energy to turn the bottom bracket than its closest
competitors. Ceramic bearings are more resitant to
dirt, moisture, and are more resilient against wear
and tear. Ceramic bearings are cut much more
round than their steel contourparts which aids in
reducing mechanical drag, which is the primary loss
of power next to aerodynamic drag. FEATURES -
Ceramic bearings, stainless steel race English
threading with shell width of 68mm or Italian
threading with shell width of 70mm. Compatible
with SRAM, Truvatic®, Giga X PipeTM, and GXP
cranksets. 105g