Pro Blendr is the ultimate computer integration system for clean and easy installation directly to Knock Block. Pro Blendr is the ultimate computer integration system for clean and easy installation directly to Knock Block. Ultimate integration Ultimate integration Start with a Blendr stem, add the appropriate base and finish with Pro Blendr Knock Block Computer Mount for secure mounting of computers. The included knuckle mounts directly to Trek Knock Block headsets and keeps your cockpit spotless. Don't forget your Garmin or Wahoo Adapter Puck! Those are sold separately so you can build the ultimate Blendr system that's right for you. Start with a Blendr stem, add the appropriate base, and finish with Pro Blendr Knock Block Computer Mount for secure mounting of computers. The included knuckle mounts directly to Trek Knock Block headsets and keeps your cockpit spotless. D - Blendr is an...