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SHIS terminology: The 790 is used on ZS56 or EC56 upper or lower headtubes.
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NOTE: For sharpening services of cutting tools see Park Tool Sharpening Services. Always use cutting fluid such as Park Tool CF-2 when machining. SHIS terminology: The 690-XL may be used on frames in ZS41, ZS44, ZS49, EC44, EC49 and IS52 headsets.
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NOTE: For sharpening services of cutting tools see Park Tool Sharpening Services. Always use cutting fluid such as Park Tool CF-2 when machining. SHIS terminology: faces headtube faces up to the ZS56 or EC56
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- Chrome-plated, steel construction
- Adjusts to compensate for various hub widths from 100 to 160mm