Product Description
Shimano 10GUY Click Spring (TT0188)
The Shimano 10GUY Click Spring (TT0188) is a high-tension spring component used in the bait alarm (clicker) mechanism of Shimano’s heavy-duty conventional and trolling reels. This spring provides the necessary pressure to keep the Click Pawl engaged against the Click Gear.
When you slide the clicker button to the "on" position, this spring is compressed, forcing the pawl into the gear teeth. The quality of this spring determines the "crispness" of the sound and ensures the clicker doesn't accidentally disengage or "skip" when a large fish makes a high-speed run.
Product Specifications
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Part Name: Click Spring / Bait Alarm Spring
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Part Number: 10GUY
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Shimano Code: TT0188
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Material: Metal
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Type: Leaf / Spring
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Function: Maintains mechanical tension on the clicker pawl for audible strike alerts.
Alternate Part Numbers
This part is identified in modern offshore and conventional technical manuals as:
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TT0188
Compatibility & Fitment
The 10GUY (TT0188) is a specialized component found primarily in Shimano’s robust, large-frame offshore series. It is a direct factory fit for:
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Shimano Tyrnos Series: TYR-8, 10, 12, 16, 20, 30 (Single and II-Speed models)
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Shimano Tiagra Series: Fits select smaller frame Tiagra models (Verify via TT code)
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Shimano TLD Series: Used in select modern TLD star drag and lever drag variants.
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Shimano Speedmaster Series: Fits select modern offshore models.
Key Features
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Heavy-Duty Tension: Engineered to provide a loud, distinct "click" that remains audible even over engine noise and wind.
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Corrosion Resistance: Constructed from high-grade stainless steel to prevent the "spring fatigue" caused by salt air and spray.
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Zero-Play Design: Manufactured to precise tolerances to ensure the clicker switch feels "locked" when engaged, preventing accidental movement.
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Direct OEM Fit: Guaranteed to align perfectly with the mounting pins inside the Tyrnos side plate.
Maintenance & Troubleshooting
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The "Weak" Clicker: If your bait alarm sounds quiet or "mushy," the spring has likely lost its tension or has a micro-crack. Replacing the 10GUY will restore the factory-loud sound.
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Cleaning: Because this spring is located inside the side plate but near the exterior switch, it can collect salt crystals. During annual service, remove the spring, wipe it with a light oil, and ensure the mounting area is clear of debris.
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Installation Orientation: The spring has a specific "bend." If installed upside down, the clicker switch will be extremely difficult to move or may not engage the gear at all.
Pro Tip: If you are replacing the spring, always inspect the Click Pawl (TT0185) as well. A worn pawl and a new spring together will provide the best performance. You can find the full internal assembly diagram for the Tyrnos series at www.reelschematic.com.
