The Strummer CW-900 series is manufactured with high precision using CNC machining to achieve a lightweight design with a structure that remains strong and rigid. Each unit undergoes anodizing to improve 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 premium appearance that lasts longer than chainrings without detailed finishing.
Available in two pattern variants:
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CW-900A
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CW-900B
Provides styling flexibility to suit the character of the bicycle and the rider's preferences.
Technical Specifications
Material:
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Crank & Chainring: AL6061-T6 Aluminum Alloy (CNC Machined, Anodized, Precision Finished)
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Spindle (Axle): Steel
Product Weight:
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910 grams (total set including preload bolt)
BCD (Bolt Circle Diameter):
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144 mm (5-Bolt)
For Fixed Gear / Single Speed Only
This crankset is specifically designed for fixed-gear (fixie) bicycles and single-speed drivetrains.
Uses the following configuration:
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Fixed-gear chainring
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Single-speed / fixed-gear chain
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Cog (threaded sprocket) on the rear hub
A single-speed / fixed-gear chain must be used.
⚠ Important Warning
Not compatible with multi-speed systems.
This means:
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Cannot be used with a cassette sprocket
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Cannot be used with a freehub body
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Cannot be used with a front or rear derailleur
The rear system must use a threaded cog on the fixed-gear hub, not a cassette.
Do you have any questions about the product?
If any product information is unclear, please contact Strummer using the Support form. The review field is for sharing your experience using the product.
