Promax Direct Mount Chainring
Best durable upgrade for competitive BMX and mountain bike racers.
By ditching the traditional spider, this chainring sheds critical rotating mass to make your bike feel noticeably snappier off the line. It’s a focused upgrade for riders who prioritize pure efficiency and stiffness over versatility, turning every pedal stroke into immediate, responsive forward momentum.
$59.99
at
Airpark Bike Co
Who it's for
- Weight-conscious BMX racers seeking maximum acceleration off the gate
- Competitive athletes prioritizing efficient energy output and stiffness
- Riders who value a minimalist and streamlined bicycle appearance
Who should skip it
- Cyclists using non-Promax crank systems requiring universal fitment
- Mechanics and racers who frequently change gearing between heats
- Home mechanics preferring standard tools for routine maintenance
Performance breakdown
Power Transfer Efficiency
Direct mount interface minimizes flex for immediate, responsive power delivery.
Weight Optimization
Spiderless design sheds unnecessary grams for faster, snappier acceleration.
Structural Rigidity
CNC-machined aluminum handles high-torque sprints without compromising shape.
Installation Simplicity
Streamlined three-bolt mounting makes swapping rings quick and straightforward.
Durability
High-grade 6061-T6 aluminum withstands the rigors of aggressive BMX riding.
System Compatibility
Specific SRAM three-bolt requirement limits use to compatible cranksets only.
Key Specs
Material
Aluminum 6061-T6
Weight
227 grams
Number of teeth
47
Mounting type
SRAM 3-bolt direct mount
Intended use
BMX, Single-speed
Chain compatibility
3/32 inch
Chainring position
Single
Shape
Round
Drivetrain speed system
1x
Surface finish
CNC Machined
Know before you buy
Still have a question?
Ask Metto anything about the Promax Direct Mount Chainring before you decide.