Snafu Gyro Lower Cable Astroglide
The very smooth SNAFU Astroglide Dual Lower Brake Cables (London Mod)are designed for routing dual brake cables from one brake lever for increased braking power.
Specs:

Very smooth Astroglide liner and wire coating
Zero-Compression housing construction for kink-free performance
Coated stainless steel inner wire for smooth dual cable braking
Dual cable adapter comes with barrel adjusters
Replaces traditional Gyro lower brake cables