Profile Spline Sprocket
Best spline-drive sprocket for BMX riders seeking direct power transfer.
This sprocket ditches the traditional bolt for a direct-drive spline system, locking onto your crank axle for immediate, responsive power transfer. It’s a beautifully machined upgrade that simplifies your setup while ensuring perfect chain alignment, though you’ll need to double-check your axle size before committing to this specific spline interface.
$62.99
at
FlatSociety
Who it's for
- Aggressive riders needing reliable power transfer without slippage
- Mechanics seeking faster, bolt-free installation and maintenance
- Profile crank owners wanting guaranteed fit and efficiency
Who should skip it
- Riders using 22mm or 24mm crank systems
- Budget-conscious cyclists prioritizing cost over specialized performance
- Cyclists who frequently swap or remove their sprockets
Performance breakdown
Power Transfer Efficiency
The 48-spline interface eliminates play for immediate, responsive drivetrain engagement.
Material Durability
CNC-machined 7075 aluminum offers an exceptional strength-to-weight ratio for aggressive riding.
Installation Simplicity
Bolt-free design makes mounting and maintenance straightforward for any home mechanic.
Aesthetic Customization
Extensive color palette allows for precise, personalized bike builds.
Chain Alignment Precision
High-tolerance machining ensures smooth, consistent chain tension across all gear sizes.
Component Compatibility
Strictly limited to 19mm splined axles, ensuring a secure, specialized fit.
Key Specs
Material
CNC machined from 7075 Aluminum
Axle Compatibility
19mm splined axles only
Insert
Supplied w/ 19mm splined steel insert
Sizes & Tooth Widths
18t & 20t w/ 3/32″ tooth width; 23t, 25t & 28t w/ 1/8″ tooth width
Colors
Silver, Black, Red, Blue, Gold, Green, Purple, Aqua, & Matte Black (25t & 28t Only)
Weight (18t)
44g/1.6oz
Weight (20t)
52g/1.8oz
Weight (23t)
62g/2.2oz
Weight (25t)
76g/2.65oz
Weight (28t)
87g/3.05oz
Know before you buy
Still have a question?
Ask Metto anything about the Profile Spline Sprocket before you decide.
