SHIMANO SS-7600 Dura-Ace 15T Track Cog

  • Construction: Made of hardened Chromoly for durability.
  • Thread Specification: Features 1.37″x24tpi right-handed threads.
  • Compatibility: Designed to work with Velocity Deep Vs (RL hubs).
  • Performance: Known for reliable performance even during hard riding and skid stopping.
  • Quality Assurance: Few manufacturing defects reported, indicating high reliability.
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Description

This SHIMANO SS-7600 Dura-Ace Track Cog is the real deal for all you bike enthusiasts out there. It’s CNC machined and made from tough Chromoly for that extra kick of durability.

When it comes to compatibility, this baby’s got it covered with 1.37″x24tpi (right-handed) threads. Shimano sure knows what they’re doing because this cog is part of their top-tier Dura-Ace lineup, with the official reference number SS-7600.

I’ve put this cog through the wringer, and let me tell you, it’s a champ. I’ve ridden a couple of hundred miles on it, and it still looks and performs just like new. It’s a workhorse, especially if you’re rocking stock Velocity Deep Vs (RL hubs). I’m talking hard riding, skid-stopping, you name it – this cog takes everything you throw at it.

Now, unless there’s some crazy manufacturing glitch (which I highly doubt), you’re not going to have any issues with this bad boy. In fact, if you do run into problems, it’s more likely that you did something wrong, not this cog. So, if you’re looking to upgrade your ride and need a reliable cog that can handle the heat, the SHIMANO SS-7600 is the way to go. It’s tough as nails and ready to roll!

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Frequently asked questions (FAQ)

Fixed Gear Focus Gear is your source for fixie, single-speed, & track bike content. Here are some answers to the most frequently asked questions to regarding fixed-gear cycling.

A fixed gear bike (or "fixie") is a bicycle where the rear cog is directly connected to the rear wheel with no freewheel mechanism. This means the pedals always move when the wheels are moving—you can't coast. When you pedal forward, you go forward. When you pedal backward, you go backward. This direct connection gives you complete control over your speed and creates a unique riding experience that many cyclists find more connected and engaging than traditional bikes.

Riders love fixed gear bikes for their simplicity, low maintenance, and pure riding feel. With fewer components (no derailleurs, shifters, or complex drivetrain), there's less to break and maintain. Many find the constant pedaling motion improves their pedal stroke efficiency and builds leg strength. Fixed gear bikes are also incredibly affordable, making them perfect for urban commuting, bike messengers, and anyone who wants a reliable daily rider. Plus, the minimalist aesthetic and customization options appeal to cycling enthusiasts who want a bike that reflects their personal style.

There's definitely a learning curve, but most people adapt within a few rides. The biggest adjustment is not being able to coast—your legs must keep moving. Start in an empty parking lot to get used to the constant pedaling and learn to slow down by resisting the pedals. Many beginners find that riding with at least a front brake helps build confidence while learning. After a week or two, the fixed gear motion becomes second nature and feels completely natural.

Legally and practically: yes, you should have at least a front brake. While experienced riders can slow down by resisting the pedals (called "skidding"), this technique isn't reliable for emergency stops and wears through tires quickly. Most jurisdictions require at least one brake on bicycles ridden on public roads. A front brake gives you much better stopping power and makes fixed gear riding safer and more practical, especially in traffic or when riding in wet conditions.

Both bikes have one gear, but that's where similarities end. A single speed bike has a freewheel, meaning you can coast when you stop pedaling—just like a regular bike but without gear shifting. A fixed gear bike locks the cog to the wheel, so the pedals must always move when the bike is moving. Many fixed gear bikes come with flip-flop hubs that let you switch between fixed and freewheel modes by flipping the rear wheel around, giving you the best of both worlds.

Absolutely! Fixed gear bikes are actually excellent for beginners because of their simplicity. With no gears to shift or complicated components to maintain, new riders can focus on basic cycling skills. The constant pedaling motion naturally teaches smooth pedal technique and bike handling. Start with a flip-flop hub so you can practice on the freewheel side first, then switch to fixed when you're ready. Many cycling coaches recommend fixed gear bikes for winter training because they develop efficient pedaling habits that carry over to all types of riding.