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Load image into Gallery viewer, ethirteen-Chainring-28t-DMCN0481-Direct-Mount-MTB-Chainrings
Load image into Gallery viewer, e*thirteen Helix R Chainring - 28t, 11/12-Speed, 52/55mm Flip Flop CL, 3.5mm Offset, e*thirteen DM, Black

SKU: DMCN0481

e*thirteen Helix R 28T Direct Mount Chainring - Lightweight AL-7075-T6 Aluminum, 11/12-Speed Compatibility, Flip-Flop Design for Boost & SuperBoost 52/55mm Chainline, Narrow-Wide Teeth for Shimano/SRAM, CNC Machined, Black

Regular price $72.95
$81.95 Sale price $72.95 Regular price
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Description
Specifications

Upgrade your mountain biking performance with the ethirteen Helix R Chainring - the ultimate 28-tooth, 11/12-speed compatible direct mount chainring engineered for durability, precision, and style. Crafted from premium AL-7075-T6 aluminum, this high-performance chainring offers lightweight strength and long-lasting wear, making it ideal for aggressive trail riding, enduro, and XC disciplines.

Materials & Engineering Excellence

Constructed from forged AL-7075-T6 aluminum and extensively CNC-machined, the Helix R Chainring delivers unrivaled stiffness, durability, and lightweight efficiency. Its durable 3.5mm offset design ensures optimal chainline alignment across various setups, including Boost and Super Boost (52/55mm), providing seamless compatibility for both aggressive and casual riders.

Performance & Technology

Featuring ethirteen's innovative narrow-wide M4 tooth profile, this chainring guarantees excellent chain retention with Shimano and SRAM 11/12-speed chains, reducing chain drops and gear slip during rugged rides. The flip-flop design provides versatility, allowing smooth switching between Boost and Super Boost chainlines without additional components. The secure Quick Connect direct mount interface ensures a creak-free, reliable connection that withstands rigorous trail conditions.

Style & Use Cases

Designed to complement all Helix cranksets, including TRS, LG1, and XCX Race, the Helix R Chainring offers a sleek black finish for a professional, performance-oriented look. Its modern aesthetics suit aggressive trail, enduro, and XC riding, providing the perfect blend of style and functionality. Whether you're upgrading for race day or daily trail rides, this chainring boosts your bike's efficiency and reliability.

Key Innovative Features

- Flip-flop design compatible with Boost (52mm) and Super Boost (55mm) chainlines

- Narrow-wide tooth profile for enhanced chain retention and reduced wear

- CNC-machined from lightweight 7075-T6 aluminum for strength and stiffness

- Direct Mount ethirteen interface for easy installation and secure fit

- Compatible with Shimano and SRAM 11/12-speed chains and various Helix cranks

Item Specifications:

- Tooth Count: 28T

- Drivetrain Compatibility: 11/12-Speed

- Offset: 3.5mm

- Material: High-grade Aluminum (AL-7075-T6)

- Color: Black

- Weight: 43g

- Designed for: Round chainring profile, direct mount for Helix cranks

Maximize your bike's performance with the ethirteen Helix R Chainring - engineered for durability, efficiency, and seamless versatility on every trail. Perfect for riders seeking a high-performance component that combines cutting-edge technology with sleek style.

  • Premium AL-7075-T6 aluminum construction ensures exceptional durability, lightweight performance, and corrosion resistance for demanding mountain biking conditions.
  • Engineered with e*thirteen's innovative narrow-wide M4 tooth profile, this 28-tooth chainring provides superior chain retention and compatibility with Shimano and SRAM 11/12-speed drivetrains, reducing chain drops and wear over time.
  • Adjustable flip-flop design accommodates both Boost and Super Boost chainlines (52mm/55mm), offering versatile setup options for various mountain bike frames and riding styles.
  • Featuring the secure Quick Connect direct mount system, this chainring delivers a creak-free, stable connection with Helix, TRS, LG1, and XCX Race cranks for smooth and reliable shifting performance.
  • Sleek black finish with technical CNC machining enhances both style and function, making this chainring an optimal upgrade for aggressive trail riders seeking precision, durability, and modern aesthetics.
Tooth Count28
Drivetrain Speeds11
Drivetrain Speeds12
Round or OvalRound
Offset3.5
MaterialAluminum
ColorBlack
Weight43
Defined ColorBlack
Direct Mount TypeDirect Mount e*Thirteen
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