ethirteen Helix Race espec Chainring – Avinox, Black 36T

A premium 1‑piece forged‑and‑machined 7075‑AL chainring engineered specifically for Avinox motors. Lightweight, stiff, long‑wearing, and fully cross‑compatible with Shimano®, SRAM®, TRP® 11/12‑speed — including SRAM T‑Type. Available in 36T with a precise 8 mm offset for a perfect 55 mm chainline.

Helix Race e*spec Chainring – Avinox, 36T

The Helix Race e*spec chainring delivers cutting‑edge performance for Avinox‑powered e‑MTBs. Forged and CNC‑machined from high‑grade 7075 aluminum, it offers exceptional stiffness, low weight, and long wear life, all wrapped in a clean, technical aesthetic. Designed as a premium upgrade, it pairs perfectly with Helix Race Alloy e*spec cranks for a fully integrated look.

Avinox‑Specific Engineering

• 8 mm offset for an optimal 55 mm chainline


• 36T size option for ideal e‑MTB gearing


• Direct‑mount interface engineered exclusively for Avinox motor systems

Performance Features

• 1‑piece forged + CNC‑machined 7075‑AL construction


• M4 narrow‑wide tooth profile for enhanced chain retention


• Cross‑compatible with Shimano®, SRAM®, TRP® 11/12‑speed drivetrains


• Fully compatible with SRAM T‑Type


• Lightweight, stiff, and built for long wear life

Available Colors (Avinox)

• Black


• Bronze


• Sterling Silver

Weight

• 36T: 109 g

The Helix Race e*spec Avinox chainring is the ultimate upgrade for riders seeking premium performance, refined aesthetics, and flawless drivetrain integration on their Avinox‑powered e‑MTB.