Shimano Ultegra BB72-41B Press-Fit Bottom Bracket MFPN=TW046 As light as carbon cranks

As light as carbon cranks and as durable as heavy aluminum cranks the Electric Wings are for E-bike riders looking for both weights savings and durability

105mm x 110mm Platform – The 105mm width and 110mm length ensures complete shoe contact on the pedals and maximized stability

Tooth Count 30Drivetrain Speeds 9Drivetrain Speeds 10Drivetrain Speeds 11Drivetrain Speeds 12Round or Oval RoundOffset 3Material AluminumColor BlackDefined Color BlackDirect Mount Type Direct Mount SRAM 3-Bolt

}Magura MT8 SL Disc Brake and Lever - Front or Rear Hydraulic Post Mount Gray/Yellow

Cassette Cogs 10-12-14-16-18-21-24-28-32-38-44-52 Length 165 Rings 32

Shimano Ultegra BB72-41B Press-Fit Bottom Bracket MFPN=TW046 As light as carbon cranksShimano Ultegra BB72 41B Press Fit Bottom Bracket. Shimano Ultegra BB72 BBR60 Hollowtech II Bottom Brackets TECH SPECS Bottom Bracket Shell I. D. 41 BB Frame Interface BB86 BB Shell Width (mm) 86 Weight 69 Spindle Interface Type Shimano Hollowtech II Defined Color Black