SIDI Adjust Heel Retention Device - Reflex Anthracite MFPN=11.4118.065.601 CK-1 cranks are Promax’s top-of-the-line

CK-1 cranks are Promax’s top-of-the-line carbon crank offering

4 Stem Angle (deg) -4

engineered and manufactured in-house

Polycarbonate shell with 15 vents

Straight gauge 2

SIDI Adjust Heel Retention Device - Reflex Anthracite MFPN=11.4118.065.601 CK-1 cranks are Promax’s top-of-the-lineThe SIDI Adjust Heel Retention Device is a specialized feature in cycling shoes designed to provide customizable heel support and stability. This mechanism allows cyclists to adjust the fit of the heel cup to their preference ensuring a secure and comfortable fit. By tightening or loosening the device riders can fine tune the level of support and prevent slippage during intense rides. With its user friendly design and reliable performance the SIDI