MUQZI Bottom Bracket Thread Tapping Tool MTB Road Bike BC 1.37 Bottom Bracket English Thread Repair Tap Bicycle Screw Tap
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Specifications
- Brand Name
- MUQZI
- Origin
- Mainland China
- High-concerned chemical
- None
- Type
- Bottom Bracket Thread Tapping Tool
- Choice
- yes
- semi_Choice
- yes
Product Description
MUQZI Bottom Bracket Tapping Tool
Material: Aluminum Alloy + Stainless Steel
Tap Specification: BC 1.37*24 TPI / 34.789 BSA Standard
Better Durability:
MUQZI taps are made from premium high-speed steel with a titanium-coated surface. Compared with standard taps, they feature a longer service life and exceptional wear resistance, enabling them to cope with high-intensity and harsh working environments.
T-Handle Design: Provides extra leverage for manual tapping, offering greater flexibility and comfort.
Starter Edition：
High-speed steel with titanium nitride (TiN) coating, ideal for aluminum alloy frame.
Professional Edition：
High-speed steel with titanium nitride (TiN) coating and cobalt, suitable for aluminum, steel, and stainless steel frame.
Operation tips:
Left Side: Crank Arm Direction
Right Side: Chainring Direction
Operation Tips:
Apply tapping oil to the tap and bike frame before use.
Keep tool and frame aligned horizontally.
If resistance is high, reverse slightly to clear debris, then continue.
Deep Chip Removal Design
Effectively prevents aluminum chips from clogging the threads during the tapping process.
Clean any excess debris inside the bottom bracket shell.
Add lubrication oil inside the bottom bracket shell.
Apply lubrication oil to the taps.
Insert the Right Tap (R) and Left Tap (L) into the bottom bracket .
Counterclockwise tapping.
After tapping, clean out any remaining debris.
Product information last updated on April 1, 2026