Elevn Flow Chainring 104mm BCD 4-Bolt Alloy

ELEVN FLOW 104MM BCD 4-BOLT ALLOY CHAINRING

The Elevn Flow is a CNC machined 6061-T6 aluminium chainring built for BMX racing. It uses a 4-bolt 104mm BCD mounting pattern and is precision machined to consistent tolerances for reliable chain engagement and drivetrain efficiency. Available from 38T to 50T to cover a wide range of gearing requirements.

Key Features

• 6061-T6 aluminium construction — Heat-treated alloy grade commonly used in performance cycling components for its balance of strength, machinability, and weight; provides a stiffer, more durable ring than standard alloy at a controlled weight
• CNC machined — Precision machining ensures accurate tooth profiles and consistent BCD hole placement, resulting in smooth chain engagement and reliable bolt fitment across the full tooth range
• 4.4mm thickness — Provides sufficient rigidity to resist flex under hard pedalling loads while keeping overall weight in check
• 4-bolt 104mm BCD mounting pattern — Standard 4-bolt spider interface widely used across BMX racing cranksets; distributes load across four fixing points for a secure, rattle-free connection
• 3/32" chain specific — Designed exclusively for 3/32" chain, which is standard for BMX racing drivetrains

Technical Specifications

• Material: 6061-T6 aluminium
• Manufacture: CNC machined
• BCD: 104mm
• Bolt configuration: 4-bolt
• Thickness: 4.4mm
• Chain compatibility: 3/32"
• Available sizes: 38T to 50T
• Weight: 122g (44T)

Compatibility and Ideal Use Cases

Fits any crankset with a 4-bolt 104mm BCD spider. Intended for BMX racing use where drivetrain precision and consistent power transfer are a priority. The 38T to 50T range accommodates junior through elite class gearing needs. Confirm your crankset uses a 4-bolt 104mm BCD pattern before purchasing, as this differs from 5-bolt 110mm and other common BMX chainring standards. For use with 3/32" chain only — not compatible with 1/8" chain setups.