Shimano 105 FC-RS510 Crankset - 172.5mm 11-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFG Part Number-DSPCY356 The perineal relief cutout improves

The perineal relief cutout improves blood flow and reduces numbness in sensitive areas when the hips are rotated forward in an aggressive forward-leaning pedaling position

If the sleeve binds at all during installation - trim or double check to make sure the tool is oriented correctly

For additional Praxis 1x or 2x chainring options

Sporting an aggressive design and the most powerful single LED tail light available the Cygolite Hotshot Pro 200C is engineered from the ground up to stand out the brightest of daytime hours and at night with intense 200 lumen flashes

All in a metal/composite package with the option for replacement tire levers

Shimano 105 FC-RS510 Crankset - 172.5mm 11-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFG Part Number-DSPCY356 The perineal relief cutout improvesThe Shimano 105 FC RS510 crankset features a 2 piece design and is compatible modern disc brake road frames. 4 arm crankset for 11 speed drive train Compatible with frames of O. L. D. 135 mm and 410 mm chainstay length 43. 5mm chainline Color Black Rings 50 34 Number of Chainrings Double Crank Length (mm) 172. 5 Crank Intended Use Road Drivetrain Speeds 11 BB Included No Pedal Spindle 9 16" Spindle Interface Type Shimano Hollowtech II Chainring BCD