Elevn Aluminum Rear Cog

Elevn 7075-T6 Aluminum BMX Rear Cog – Lightweight CNC Machined Shimano Cassette Cog

Upgrade your BMX race bike with the Elevn Rear Cog, precision CNC machined from premium 7075-T6 aluminum for maximum strength, durability, and lightweight performance. Designed specifically for BMX racing, the Elevn rear cog delivers efficient power transfer while helping to protect your cassette hub thanks to its innovative wide contact design.

Compatible with Shimano cassette-style freehubs, the Elevn cog is available in 14T, 15T, 16T, 17T, and 18T, making it easy to dial in the perfect gear ratio for any track, rider, or race condition.

Unlike standard cassette cogs, the Elevn Rear Cog features a 5mm-wide contact surface that distributes pedaling forces more evenly across the cassette body. This wider interface helps reduce wear and minimizes the risk of damaging lightweight aluminum freehub bodies, extending the life of your rear hub.

Whether you're building a championship-level BMX race bike or replacing a worn cog, the Elevn Rear Cog offers the perfect balance of lightweight performance, durability, and precision engineering.

Why Choose the Elevn Rear Cog?

• Precision CNC machined from 7075-T6 aluminum
• Lightweight and exceptionally strong
• Shimano cassette freehub compatible
• Wide 5mm contact surface protects cassette body
• Improves load distribution under hard acceleration
• Available in 14T, 15T, 16T, 17T and 18T
• Designed specifically for BMX racing
• High-quality anodized finish for durability

Features

Premium 7075-T6 Aluminum Construction

Manufactured from aerospace-grade 7075-T6 aluminum, the Elevn Rear Cog provides outstanding strength while keeping rotating weight to a minimum. The result is quicker acceleration and improved drivetrain efficiency.

Precision CNC Machined

Each cog is CNC machined to extremely tight tolerances for smooth chain engagement, precise tooth profiles, and consistent performance under the high loads generated during BMX gate starts and sprinting.

Wide 5mm Contact Surface

A key feature of the Elevn Rear Cog is its 5mm-wide engagement surface, which spreads pedaling loads over a larger area of the cassette body. This helps:

• Reduce wear on aluminum freehub bodies
• Prevent notching of cassette splines
• Increase drivetrain longevity
• Improve load distribution during powerful sprints

Shimano Cassette Compatible

Designed to fit Shimano HG cassette freehub bodies, the Elevn Rear Cog is compatible with many popular BMX race hubs from leading manufacturers.

Multiple Tooth Options

Choose the ideal gearing for your riding style and track conditions.

Available sizes:

• 14 Tooth
• 15 Tooth
• 16 Tooth
• 17 Tooth
• 18 Tooth

Specifications

Benefits of a Wide Contact Rear Cog

Most lightweight cassette cogs concentrate pedaling forces on a narrow contact area, which can eventually cause wear or notching on aluminum cassette bodies.

The Elevn Rear Cog's wider 5mm interface distributes these forces more evenly, helping to:

• Extend cassette body lifespan
• Reduce freehub damage
• Improve drivetrain reliability
• Maintain consistent power transfer during racing

This makes it an excellent upgrade for riders using high-end aluminum cassette hubs.

Ideal For

The Elevn Rear Cog is perfect for:

• BMX Racing
• National and International Competition
• Elite Riders
• Expert Riders
• Lightweight Race Bike Builds
• Riders using Shimano-compatible cassette hubs

Why Buy from RaceBMX.sg?

At RaceBMX.sg, we specialise in BMX racing components trusted by riders across Singapore and Southeast Asia. We stock genuine Elevn products, offer expert product advice, and provide fast shipping so you can spend more time on the track and less time waiting for parts.

Frequently Asked Questions

Is the Elevn Rear Cog compatible with Shimano cassette hubs?

Yes. It is designed to fit standard Shimano HG cassette freehub bodies commonly used on BMX race hubs.

What size rear cog should I choose?

The correct tooth count depends on your preferred gear ratio, chainring size, rider strength, and track layout. Common BMX race setups include combinations such as 44/16, 43/16, 45/16, and 46/17.

Why is the 5mm contact surface important?

The wider engagement area distributes pedaling forces more evenly, reducing wear and helping to prevent damage to aluminum cassette bodies.

Is 7075-T6 aluminum strong enough for BMX racing?

Yes. 7075-T6 aluminum is one of the strongest aluminum alloys available and is widely used in premium BMX racing components due to its excellent strength-to-weight ratio.