SRAM BB30 / BBright Direct Fit Bottom Bracket MFPN=PR1253 8 spokes with Secure Lock

8 spokes with Secure Lock aluminum nipples

}RaceFace Bosch G4 Direct Mount Hyperglide+ eMTB Chainring (52mm Chainline) - 36t Steel Requires Shimano 12-speed HG+ Chain Black

Ventilated stainless steel backing plate for improved heat dispersion

}Shimano RD-M8100 Outer Plate Assembly - SGS

SRAM BB30 / BBright Direct Fit Bottom Bracket MFPN=PR1253 8 spokes with Secure LockSRAM BB30 BBright Direct Fit Bottom Bracket. Non Threaded bottom brackets for SRAM and Truvativ cranksets. Engineered with the right materials for the application including sealed cartridge bearings. TECH SPECS Bottom Bracket Shell I. D. 42 BB Frame Interface BB30 BB Frame Interface BBright Direct Fit BB Shell Width (mm) 68 BB Shell Width (mm) 73 BB Shell Width (mm) 79 Weight 61 Spindle Interface Type BB30 PF30 Defined Color Black