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SKU: RRDR0323

Sunrace RD-R37 Short Cage Rear Derailleur for 6/7-Speed Road Bikes, Lightweight Composite Aluminum & Steel Construction, Smooth Shifting, Compatible with Shimano RD-A070, Performance Engineering for Road Cycling Efficiency

Regular price $24.74
$28.99 Sale price $24.74 Regular price
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Description
Specifications

Upgrade your cycling setup with the Sunrace RD-R37 Rear Derailleur, the perfect choice for 6- and 7-speed road bike enthusiasts seeking reliable performance and durable construction. Designed for seamless shift operation and enhanced durability, this derailleur delivers smooth gear transitions across various terrains, making it an ideal component for both recreational riders and serious cyclists.

Materials & Construction

Constructed with a high-quality combination of composite materials, aluminum, and steel, the Sunrace RD-R37 ensures a lightweight yet robust build. The composite components reduce overall weight for more responsive handling, while steel accents provide strength and durability in demanding riding conditions. This balanced material blend contributes to longevity and consistent performance on the road.

Performance & Engineering

Engineered to match Shimano's RD-A070 specifications, the RD-R37 offers precise and reliable shifting performance. Its 2:1 ratio and short cage design optimize chain management, ensuring smooth gear changes even under load. With a maximum sprocket capacity of 28 teeth, this derailleur accommodates a wide range of gear setups, enhancing versatility for different riding styles and terrains.

Components & Technology

Featuring innovative engineering for efficient shifting, the Sunrace RD-R37 incorporates a short cage design optimized for 6- and 7-speed systems. Its wrap capacity of 31 teeth ensures compatibility across various cassette configurations, providing flexibility for upgrades or custom builds. The lightweight design (282g) enhances overall bike acceleration and responsiveness without sacrificing durability.

Style & Use Case

Designed for road cyclists looking for a dependable derailleur that combines style with functionality, the RD-R37 seamlessly integrates into your existing drivetrain. Whether you're climbing steep hills, navigating urban streets, or embarking on long-distance rides, this derailleur offers dependable performance in a sleek, modern package.

Innovative & Differentiating Features

Unlike generic replacements, the Sunrace RD-R37 features a precision engineering design rooted in proven Shimano compatibility standards, ensuring smooth, consistent shifting. Its composite and metal construction pairs lightweight performance with rugged durability, making it a high-value upgrade for your road bike.

Optimized for Search & Conversion

Perfect for adding to your road bike, touring, or commuter setup, the Sunrace RD-R37 Rear Derailleur enhances shifting efficiency and overall drivetrain performance. Boost your bike's reliability today - choose the Sunrace RD-R37 for a seamless blend of style, performance, and durability on every ride.

  • High-quality 6/7-speed road rear derailleur featuring durable composite, lightweight aluminum, and steel construction for reliable performance on various terrains.
  • Innovative short cage design with a 2:1 gear ratio allows smooth shifting across a wide gear range up to 28T, enhancing efficiency and ride control.
  • Engineered with precision components comparable to Shimano RD-A070, ensuring seamless compatibility and dependable durability for daily commuting and competitive cycling.
  • Designed for versatile use cases, this derailleur offers quick, responsive gear changes on road bikes, making it ideal for racing, training, or recreational riding.
  • Constructed with a combination of composite materials, aluminum, and steel, providing optimized weight savings without sacrificing strength and longevity for long-lasting performance.
Wrap31
Cage/MountShort
Ratio2to1
Max28
Wgt282g
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Customer Reviews

Based on 4 reviews
75%
(3)
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25%
(1)
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B
Buyer321

This derailleur works with my Shimano 7 spd shifters and my Shimano 7 spd freewheel. I have to knock some points off because it took a long time after it was shipped to reach my home. I received this item with minor scratches on the logo and around it. Also it came out of the box.;

D
David M.

Great derailleur at a good price. No issues with the install and it shifts exactly as expected (if not better).;

J
Jeff

UPDATE: I've put a few hundred miles on this incl some torential muddy rainstorms and it is giving me flawless silent and instantaneous shifts with friction bar end shifters. Highly recommended combined with ratchetting friction shifters and a six cog flywheel. I do not miss indexing at all.

I'm using this derailleur with friction shifters on an old 12 speed. It was easy to adjust and my shifts have been fast quiet and smooth. I'm going for an off-brand fashion statement with Sunrace parts this and my crankset and I'm super happy with it all so far. If you plan on indexing this thing make sure you do your research on the pull etc.;

r
ralph scanga

great;