Shimano Dura-Ace 7600 Track Rear Hub - 32 Hole
Best current price£149.99from Condor Cycles
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Product Information
Full details
This guide is for track cyclists seeking a reliable and high-performance rear hub. The Shimano Dura-Ace 7600 offers exceptional smoothness with its premium bearings, enabling efficient power transfer for competitive racing and intense training. A key consideration is its fixed-gear design, which is incompatible with freewheels.
All features
| Model Part Number | HB7600AR |
|---|---|
| Brand | SHIMANO |
Extended Product Information
FAQs
Is this hub suitable for a road bike?
No, this is a track-specific hub designed for fixed-gear use and does not accommodate a freewheel, making it unsuitable for standard road bikes.
Can I use this hub with gears?
No, the Shimano Dura-Ace 7600 Track Hub is a fixed-gear hub. It is designed to be used with a single chainring and a single cog, with no possibility of coasting.
What is the difference between 32-hole and 36-hole hubs?
The number indicates the number of spoke holes available for building the wheel. A 32-hole hub is generally lighter, while a 36-hole hub can be built stronger, often preferred for heavier riders or more demanding conditions.
How do I maintain the Dura-Ace bearings?
Dura-Ace bearings are sealed units. Routine cleaning of the exterior and ensuring the hub is not subjected to excessive force or contamination is recommended. Professional servicing is advised if smooth rotation is compromised.
What is the over locknut dimension?
The over locknut dimension (OLD) refers to the distance between the outside of the locknuts on the hub axle. For this hub, it is 120mm, which is standard for most track frames.
Does this hub come with a lockring?
The product description states the weight includes the lockring, implying it is either included or designed to be used with a standard track lockring.
Troubleshooting
Hub feels stiff or not spinning freely
Ensure the wheel is not overtightened in the dropouts. Check for any debris or contamination around the hub shell. If the issue persists, the bearings may require professional servicing.
Cog or lockring loosening
Ensure the cog is threaded on extremely tightly, and the lockring is securely fastened in the correct direction (reverse-threaded). Use appropriate tools for installation.
Wheel feels wobbly or untrue
This is typically a wheel build issue (spoke tension, rim trueness) rather than a hub defect. Consult a professional wheel builder to true the wheel.
Pros and Cons
Pros
- Exceptional bearing smoothness for reduced friction and enhanced speed.
- Durable construction with forged aluminum and composite materials.
- Optimized for stiff wheel builds due to the large flange design.
- Lightweight, contributing to a better power-to-weight ratio.
- Reliable performance expected from the Dura-Ace component line.
Cons
- Fixed gear only, not suitable for riders needing multiple gears or coasting.
- Specific 120mm spacing may not fit all frames without adjustment or specific track frames.
- Requires a track-specific drivetrain setup (chainring, cog, chain).
Setup, Compatibility & Care
Setup:
This is a rear track hub designed for fixed-gear bicycles. It requires a track-specific chainring and cog, along with a track chain. Installation typically involves lacing the hub with spokes to your chosen rim, followed by mounting the cog and lockring securely. Ensure the cog is threaded on tightly and the lockring is properly engaged to prevent loosening.
Compatibility:
- Frame Spacing: Designed for 120mm rear over locknut spacing. Verify this matches your track frame's dropout width.
- Drivetrain: Only compatible with fixed-gear setups. It does not support freewheels.
- Axle Type: Standard 10mm axle.
Care:
- Cleaning: Regularly clean the hub exterior with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners that could damage the anodized finish.
- Bearing Maintenance: While Dura-Ace bearings are sealed and robust, periodic checks for smooth rotation are recommended. If any roughness is detected, professional servicing might be required. Do not attempt to disassemble sealed bearings.
- Storage: Store the bicycle in a dry environment to prevent corrosion.