5Dev

Test Fit Cranks

5Dev Test Fit Cranks give riders a smart, low-commitment way to explore the benefits of shorter crank lengths before investing in a high-end set. Designed with the same geometry as the premium 5Dev RGXC Ti Cranks, these cranks are machined from a solid block of aluminum for durability and consistency in testing. They may not be featherweight, but they’re purpose-built for experimentation, fitting, and performance tuning.

Perfect for shops, coaches, or riders curious about optimizing bike fit, the Test Fit Cranks let you feel the difference shorter arms can make in pedaling efficiency, comfort, and control. The swappable spindle design easily adapts to different bikes, while the raw aluminum finish gives them a workhorse look and feel that earns its patina over time.

• Affordable way to test short crank performance before committing
• Same geometry as 5Dev RGXC Ti Cranks for accurate comparison
• Machined from solid aluminum for long-lasting durability
• Swappable spindle design fits a range of bikes and setups
• 8-bolt chainring interface for compatibility and strength
• Weight: 660g

Whether you’re fine-tuning fit, improving pedaling mechanics, or helping multiple riders find their ideal setup, the 5Dev Test Fit Cranks deliver a practical, pro-level testing tool that’s as reliable as it is revealing.