"BB92 TO BB30 BOTTOM BRACKET"

ALLOWS PRESS-FIT BB92 SHELLS TO RUN BB30 CRANK SETS
FOR BIKES DESIGNED TO RUN BB92/BB91/BB71-41A BOTTOM BRACKETS
(41MM INSIDE DIAMETER SMOOTH BORE BB SHELL)
with ENDURO® DOUBLE ROW STAINLESS STEEL BEARINGS
 
$80.00
COMPLETE BOTTOM BRACKET:
 
2 pcs FLANGED DOUBLE-ROW BEARINGS 440C STAINLESS
2 pcs AUXILIARY SILICONE SEALS
ASSORTED NYLON SPINDLE SPACERS

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BB92 X BB30 BOTTOM BRACKET, DOUBLE-ROW FLANGED ENDURO BEARINGS, $80.00

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Fitting a 30mm spindle into a "BB92" shell does not leave much room for the bearings--a challenge that has limited the use of BB30 cranks in such applications.  By making outer race of these bearings into the "cup" and adding a second row of ball bearings, previous limitations have been overcome.  The result is a strong, smooth, and corrosion resistant bottom bracket.  The races and balls are 440C Stainless Steel.  

Please note that this adapter bottom bracket is designed for use with BB92 bottom bracket shells with a press-fit ID of 41mm.  Since BB92 bottom bracket shells are 92mm wide, you must use a BB30 crankset with a long enough spindle, such as the Rotor 3D+ crankset.  For reference:
 
3D+ MTB "Double" (2 chain rings): 115mm overall spindle length
3D+ MTB "Triple" (3 chain rings): 123mm overall spindle length
 
 

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