Renthal 131U-520 Ultralight Grooved Rear Chainwheel - 51T (Silver)

Renthal UltraLight Rear Chainwheels are expertly CNC machined in Manchester, UK, from 7075 T6 aluminum to incredibly tight tolerances, making them 66% lighter than steel alternatives. These chainwheels are computer engineered and tested to ensure precise fitment, concentricity, and load dispersion, with tooth profiling designed to provide maximum power transfer.

Key Features:

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• Material: Crafted from high-strength 7075 T6 aluminum.
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• Weight: 66% lighter than steel chainwheels.
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• Precision Machining: CNC machined to extremely tight tolerances for perfect fitment and performance.
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• Engineering Excellence: Computer engineered and tested for optimal concentricity and load dispersion.
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• Tooth Profiling: Designed to ensure maximum power transfer and efficiency.
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Proven Performance:

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• Factory Race Team Preference: Found on more factory race team machines than all other competing brands combined.
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• High Strength Base Material: Offers durability and performance in demanding racing conditions.
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• Exceptional Surface Treatments: Ensures long-lasting performance and wear resistance.
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Renthal’s combination of high-strength materials, cutting-edge manufacturing methods, and exceptional surface treatments makes the UltraLight Rear Chainwheels the top choice for serious racers and factory race teams worldwide. These lightweight, all-aluminum rear sprockets provide the ultimate in performance and durability, keeping your bike at the forefront of competitive racing.