Origin8 Crank Arm Set
Best budget friendly replacement for urban commuters and fixed gear enthusiasts.
Designed specifically for smaller riders or recumbent setups, these shorter crank arms provide a more ergonomic pedal stroke. The forged alloy construction balances durability with weight savings, making them a reliable choice for custom builds or component replacements.
$80.99
More Triple Alloy options
Who it's for
- Cyclists seeking custom crank lengths for ergonomic comfort
- Urban commuters needing dependable components for everyday riding
- Bike builders looking for a classic, understated visual style
Who should skip it
- Performance riders preferring the stiffness of modern bottom bracket standards
- Weight-conscious racers aiming for the lightest possible setup
- Budget-focused shoppers wanting a complete, ready-to-install drivetrain kit
Performance breakdown
Material Durability
Forged AL6061-T6 alloy provides a reliable, sturdy foundation for daily riding.
Niche Ergonomics
The 145mm length is perfectly optimized for junior and recumbent geometry.
Drivetrain Versatility
Broad compatibility across 7 to 10-speed systems simplifies component matching.
Installation Complexity
Standard square taper interface makes mounting straightforward for most home mechanics.
Component Integration
Requires separate purchase of chainrings and bottom bracket for full assembly.
Weight Efficiency
Solid alloy construction balances structural integrity with a reasonable weight profile.
Key Specs
Crank Arm Length
145 mm
Material
Forged AL6061-T6 alloy
Drivetrain Speed Compatibility
7, 8, 9, 10 speed
Bottom Bracket Interface Type
Square Taper JIS
Weight
495 grams
Bolt Circle Diameter
130 mm
Number of Chainrings
3
Chainline
46.5 mm
Spindle Length
113.5 mm
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Ask Metto anything about the Origin8 Crank Arm Set before you decide.
