MAHLE Smartbike Systems X20 TCS Bottom Bracket - PF46-24 With Torque/Cadence Sensor CheckoutSpec= Standard 45 - Vivid C1+ (2024+) 30mm spline interface CNC'd from keyword search-EB1390001M Crown:58HT Professional quality chain uses SA5139

MAHLE Smartbike Systems X20 TCS Bottom Bracket PF46 24 With Torque Cadence Sensor CheckoutSpec= Standard 45 Vivid C1+ (2024+) 30mm spline interface CNC'd from keyword search EB1390001M Crown:58HT Professional quality chain uses SA5139 30mm spline interface CNC'd from aluminum super alloy Rings Sold Separately Number of Chainrings No Rings Included Drivetrain Speeds 9 Chainring BCD Direct Mount CINCH Chainline Hub Compatibility 157 Super Boost Hubs Color Blue Crank Length (mm) 170 Crank Intended Use Mountain Weight 690 BB Included No Pedal Spindle 9 16" Spindle Interface Type RaceFace Easton CINCH Defined Color Blue keyword search RF131BM compression damper assemblies