Cycling Bargains - BikeInn Park Tool 790 Pilot 55.90mm 690-xxl Reaming Tube Tool | Hot deals section, massive stocks, great prices & easy returns. (INN151698413)

BikeInn Park Tool 790 Pilot 55.90mm 690-xxl Reaming Tube Tool | Hot deals section, massive stocks, great prices & easy returns.

ONLY £17.99

Available from BikeInn.

BikeInn Park Tool 790 Pilot 55.90mm 690-xxl Reaming Tube Tool | Hot deals section, massive stocks, great prices & easy returns.


Product Description


Park Tool 790 Pilot for 690-XXL Reaming Tube Tool | Headset MaintenanceAchieve flawless headset installation and eliminate frustrating creaks with the precision-engineered Park Tool 790 Pilot. This professional-grade workshop tool is an indispensable component for any mechanic servicing modern bicycles with oversized headtubes. Designed as a key part of the renowned Park Tool Headtube Reaming and Facing System, the 790 Pilot ensures that your headset bearing cups have a perfectly flat and square surface to press into, guaranteeing optimal performance, longevity, and silent operation. By creating an ideal interface between the frame and the headset, you prevent premature bearing wear, ensure smooth steering, and provide a level of service that sets your workshop apart.As a crucial part of the comprehensive Park Tool system, the 790 Pilot is designed for ultimate precision in specific applications. The 790 Pilot takes the place of the 789 Reamer for head tube facing with the HTR-1 Headtube Reamer. The 790 is used with the 690-XXL Facing Cutter and 750.2 Centering Cone Adaptor. The tool allows facing head tubes with 55.95 – 55.90mm I.D. (Internal´´ 1-1/2´´ ZS standard). This capability is essential for prepping new frames or correcting manufacturing imperfections on existing frames to ensure a perfect fit for modern zero-stack headsets.Whether you are building a custom bike from a bare frame or troubleshooting a persistent steering issue, the Park Tool 790 Pilot provides the accuracy needed for a perfect outcome. It guides the facing cutter with exacting precision, removing a minimal amount of material to create a surface that is perfectly parallel to the opposing face and square to the headtube´s centerline. This meticulous preparation is the foundation of a stable, quiet, and smooth-turning front end. Expand your shop´s service capabilities and invest in the right tool to properly service the latest frame standards with confidence. Key Benefits:* Ensure Perfect Headset Alignment: Creates a perfectly square and parallel surface for headset cups, leading to precise bearing alignment and exceptionally smooth steering action.* Eliminate Noise and Premature Wear: Properly faced headtubes are the number one solution for preventing the creaks and pops associated with poor headset fit, significantly extending bearing life.* Professional-Grade Results: As part of the HTR-1 system trusted by professional mechanics worldwide, this pilot allows you to deliver workshop-quality results that customers can feel.* Expand Service Capabilities: Specifically designed to work with modern 1.5 ZS and EC standards, ensuring your toolset is up-to-date with current bicycle technology. Features:* SHIS terminology: The 790 is used on ZS56 or EC56 upper or lower headtubes.* Acts as a precision pilot guide for the Park Tool 690-XXL Facing Cutter.* Engineered for frames requiring a head tube inner diameter of 55.90mm to 55.95mm.* Functions as an integral component of the HTR-1 Headtube Reamer and Facer tool system.* Enables precise machining and facing for the ´Internal´ 1-1/2 ZS (Zero Stack) headset standard.* Specifically replaces the 789 Reamer for head tube facing operations on compatible headtubes


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