Lightweight 170mm Left Crank Arm For Mountain Bikes Aluminum Alloy 7.1 Ounces Crankset Arm Replacement With Diamond Hole Design High Strength Smooth Install And Durable Performance

Lightweight 170mm Left MTB Crank Arm, Aluminum - Single ✔️ 170mm length, aluminum alloy, 7.1 oz, square hole inner shape

This single, lightweight 170mm left crank arm is a replacement part designed for mountain bikes. Made from aluminum alloy, it offers strength and easy installation, fitting bikes with a 170 mm hole spacing.

✅ Hole distance: 170 mm (6.69 in)
✅ Total length: 8.07 in (205 mm)
✅ Weight: 200-214 g (7.1-7.6 oz)
✅ Material: aluminum alloy; Color: silver

💡 What is a left crank arm used for on mountain bikes?

A handy replacement that connects pedals to the crankset, allowing power to be transmitted to the drivetrain.

- transfers pedal force from crank to drivetrain - replaces worn or damaged left crank arm on mountain bikes - compatible with 170 mm crank length and square hole inner shape - fits many bike models with standard hole spacing