Promax Render R DSK-717 Disc Brake Caliper - Short Pull Road Mechanical Post Mount GrayPromax Render R DSK 717 Disc Brake Caliper Short Pull Road Mechanical Post Mount Gray. The Promax Render DSK 717 is a proven reliable cable actuated mechanical disc brake caliper that delivers an ideal mix of modulation and braking performance. They feature tool free adjustability with inboard adjustment knobs and barrel cable adjusters. Compatible with linear pull brake levers Post Mount Tool Free Inboard Pad Adjustment Dial Includes sintered disc