eBay

Gore Ride on Brake cable set in black.
SRP was £45.99.
Described as 'Smoother than a polished eel and just as slippery, these cables are a perfect upgrade for any road bike' by road.cc review.
improvement over conventional OE cables due to

Lighter housing (90g for 2000mm vs ca 120g for standard Bowden cables.

Compressionless out housing for fimer feeling brakes.
Lower friction due to coated cables
Completely sealed system.

Includes 2000mm brake housing in black, coated stainless inner brake wires for front and rear plus high quality alloy brake ferrules, cable protector and rubber grommet for frames with exposed cable along the top tube and anodized cable end caps.
Dual ended inner cable are compatible with Campagnolo and SRAM / Shimano rim brake systems.
Delivery within the UK for £3.99 via Royal Mail Signed For.
International Shipping for £12.00 via registered air mail.