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SKU: RRDR0326

Sunrace RD-R91 9-Speed Road Bicycle Rear Derailleur, Aluminum & Steel Construction, Short Cage, Shimano-Equivalent RD-3500, Lightweight, High-Performance, Durable Gear Shift Component for Road Bikes

Regular price $43.08
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Description
Specifications

Upgrade your cycling performance with the Sunrace RD-R91 9-Speed Rear Derailleur - a precision-engineered component designed for serious road enthusiasts and competitive riders. Crafted with an advanced composite, aluminum, and steel construction, this derailleur delivers durability, lightweight efficiency, and smooth gear transitions on every ride.

Materials & Construction:

The Sunrace RD-R91 features a high-polished aluminum outer link combined with durable composite and steel components, ensuring strength without added weight. With a total weight of just 257 grams, it strikes an ideal balance between lightweight performance and long-lasting reliability, making it perfect for intense training sessions, endurance rides, and daily commuting.

Performance & Engineering:

Engineered for precision, the RD-R91 is optimized for 9-speed road cycling setups, supporting cassettes up to 28 teeth. Its 2:1 actuation ratio ensures crisp, reliable shifting under load, while the short cage design provides optimal chain management and smooth gear changes. Designed for seamless integration with Shimano-compatible 9-speed drivetrains, it offers smoother, quicker gear shifts with minimal effort.

Components & Technology:

Featuring a sleek top-polished aluminum outer link and a robust cage, the RD-R91 incorporates reliable components and advanced shifting technology. Its compatibility with Shimano RD-3500 series ensures easy installation and dependable performance, making it an excellent upgrade or replacement for existing road bike setups.

Style & Use Case:

Designed for aggressive road riding, triathlons, and competitive cycling, the Sunrace RD-R91 enhances your bike's aesthetic with a clean, polished look while delivering high-performance shifting. Its versatile design accommodates a variety of road cycling disciplines, providing the precise gear control needed for flat sprints, mountain climbs, or endurance rides.

Innovative & Differentiating Features:

This derailleur's lightweight yet durable build and compatibility with 9-speed systems make it a top choice for riders seeking reliability and quick response. The combination of materials enhances durability against road debris and impact, while the smooth actuation ratio guarantees a responsive ride every time.

Key Specifications:

- 9-speed road rear derailleur

- Short cage / Mount

- Supports max cassette sprocket of 28 teeth

- Wrap capacity of 33 teeth

- Weight: 257 grams

- Compatible with Shimano RD-3500 series

Elevate your cycling experience with the Sunrace RD-R91 Rear Derailleur - the perfect blend of engineering, performance, and style for serious road cyclists seeking dependable shifting, lightweight design, and lasting durability.

  • High-quality, lightweight construction featuring durable composite, aluminum, and steel components for reliable shifting performance on 9-speed road bikes.
  • Precision engineering with a short cage design and 2:1 ratio ensures smooth, accurate gear changes even under high torque conditions, improving overall riding efficiency.
  • High-polished aluminum outer link not only enhances the derailleur's aesthetic appeal but also contributes to reduced weight and increased resistance to corrosion.
  • Compatible with Shimano 9-speed drivetrains, making it an ideal upgrade for road cyclists seeking durable, affordable performance with an equivalent to Shimano RD-3500.
  • Versatile for road cycling and racing use cases, this derailleur's high-performance design supports up to a 28-tooth cassette, delivering consistent shifts on diverse terrain.
Wrap33
Cage/MountShort
Ratio2to1
Max28
Wgt257g
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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

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Ben Berman Founder & CEO of 365 Cycles


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These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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