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MR 2437 is the correct bearing for the application
Angular Contact Bearing Bottom Bracket for T47 Framesets and 30mm Cranksets (for older specification spindles under 90mm wide)
This 1-1/8 Drop-In
So when compared to other ceramic-hybrid bearings on the market that claim speed and power advantages on day one
BRT-040-24mm - Toolkit for BB bearing removal and installation for 24mm (Shimano) BBs. For use with BRT-060 and BRT-050 bearing presses. sale MR 2437 is the correctBRT 040 24mm Toolkit for BB bearing removal and installation for 24mm (Shimano) BBs. For use with BRT 060 and BRT 050 bearing presses. This tool includes the following: Split collet for 24mm bearing removal Expander shaft for split collet 24 37 41mm bearing and frame guide for bearing removal and installation 24 37mm extraction cup for bearing removal 52mm master cup with 32mm wrench flats; accepts standard (15mm) and Zip Nut from BRT 060 family This
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