Bike Crank Left Arm Mountain Bike Pedal Handle Bike Crank Leg Pedal Crank Mongoose Bike Parts Step Stools for Adults 170mm Crank Arm Bikes Bike Crank Tool Square Mechanic
Sports & Outdoors

Bike Crank Left Arm Mountain Bike Pedal Handle Bike Crank Leg Pedal Crank Mongoose Bike Parts Step Stools for Adults 170mm Crank Arm Bikes Bike Crank Tool Square Mechanic

$22.89
4.4(13 ratings)

Prices and availability subject to change. As an Amazon Associate we earn from qualifying purchases.

Similar or Frequently Bought Together

About this product

Overview

This 170mm crank arm is a replacement left-side component designed for mountain bikes and similar pedal-driven cycles. It delivers reliable power transfer for riders needing a direct replacement or upgrade to their existing crankset.

Key Specifications

The crank arm measures 170 millimeters in length, a standard size for most adult mountain bikes and hybrid models. It features a square taper interface for secure attachment to the crankshaft, compatible with standard bottom bracket systems found on Mongoose and comparable bike frames.

Who It's For

This part suits DIY mechanics and casual cyclists performing routine maintenance or repairs on their own bikes without professional shop visits. It's ideal for mountain bike enthusiasts who need a durable replacement after wear or damage to their original crank arm.

Worth Buying?

The 170mm length and square taper design make this a practical choice if your bike specifically requires this size and interface type. Verify compatibility with your bottom bracket before purchasing, as incorrect sizing or taper type will prevent proper installation.