Designed to secure your wheel’s integrity, the Shimano XTR WH-M988 rear hub nut is a compact yet essential spare part for bike wheels. This 6 mm length nut is engineered to fasten the spoke to the hub securely, offering a precise fit for smooth wheel performance.
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Material & Build
Crafted from high-grade steel, this hub nut is durable and resistant to wear and humidity—perfect for Malaysia’s tropical climate and coastal environments. -
Compatibility
Ideal for the XTR WH-M988 rear wheel, it’s also fully compatible with various other Shimano models including Ultegra WH-6800-R, Deore XT WH-M788-R and WH-M785-R variations, and even several front wheel models like Ultegra WH-6800-F and Deore XT WH-M785-F—making it a versatile, “A-match” genuine replacement part.
Usage & Installation Instructions
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Wheel Removal & Access
Remove the rear wheel from the frame. If replacing a damaged hub nut, first loosen and remove the current one before proceeding. -
Installation
Thread the new hub nut carefully onto the spoke end inside the hub. Use the correct spoke nipple tool—typically a 3.23 mm wrench—to ensure a snug but not overtightened fit. -
Tension & Alignment Check
Post-installation, recheck your spoke tension and true the wheel using a truing stand or brake caliper as reference. Fine-tune tension in small increments to avoid misalignment or over-stressing the rim.
Precautions & Care
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Use Only Genuine Parts
Non-genuine or mismatched hub nuts may vary in thread pitch or material—risking stripped threads, poor wheel integrity, or even hub damage. Always use Shimano’s specified Y-4G308100 nut for safe compatibility. -
Avoid Overtightening
Over-torquing can warp the spoke interface or damage the hub threads. Tighten gradually and test for firm seating without excess force. -
Routine Maintenance
After riding in heavy rain, coastal areas, or muddy conditions, wipe the wheel hub clean and lightly lubricate to protect against rust and ensure long-lasting performance.
