Strummer CW-900 Series Aero Aluminium Chainwheel for Single Speed Fixed Gear (Fixie)

Strummer CW-900 Series – Fixed Gear Performance Crankset

Strummer CW-900 Series is produced with high precision using CNC machining to achieve a lightweight design while maintaining a strong and rigid structure. Each unit undergoes anodizing to enhance resistance to corrosion and long-term wear, followed by precision finishing on the chainring teeth.

This finishing process ensures a more precise tooth profile, more efficient power transfer, and a more durable premium appearance compared to chainrings without detailed finishing processes.

Available in two pattern variants:

• CW-900A

• CW-900B

Provides flexibility in appearance according to the character of the bike and rider preferences.

Technical Specifications

Material:

• Crank & Chainring: Aluminium Alloy AL6061-T6 (CNC Machined, Anodized, Precision Finishing)

• Spindle (Axle): Steel

Product Weight:

• 910 grams (total set including preload bolts)

BCD (Bolt Circle Diameter):

• 144 mm (5-Bolt)

For Fixed Gear / Single Speed only

This crankset is specifically designed for fixed gear (fixie) and single speed drivetrain bicycles.

Using configuration:

• Fixed gear chainring

• Single speed / fixed gear chain

• Cog (threaded sprocket) on the rear hub

Must use single speed / fixed gear chain.

⚠ Important Warning

Not compatible with multi-speed systems.

Meaning:

• Cannot be used with cassette sprocket

• Cannot be used with freehub body

• Cannot be used with front or rear derailleurs

The rear system must use threaded cog on the fixed gear hub, not a cassette.