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Best Bike Cranksets Under $50 (2026)

We ranked cranksets under $50 by a value score based on verified customer ratings, key specs (BCD, crank length, chainring range, material), and price

This roundup highlights cranksets priced under $50 for riders who want durable, value-oriented options for mountain and e-bike use. Selections prioritize measured features like crank arm length, BCD compatibility, chainring tooth counts, and material to help you match a replacement or upgrade to your bike

Top Picks

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    BUCKLOS MTB crankset 170mm 104 BCD 32/34/36/38/40/42T

    BUCKLOS MTB crankset 170mm 104 BCD 32/34/36/38/40/42T

    BUCKLOS • ★ 4.1/5 • Budget

    BUCKLOS 170mm single-speed square taper crankset with 104 BCD, offering lightweight, durable performance for mountain, commuter, and electric bikes. Customers note easy installation and good value, with oval chainring improving performance

    • 104 BCD ultralight design
    • range of chainring sizes
    • oval/round chainring options
    Check current price on Amazon →
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    BUCKLOS 170mm MTB Crankset with 104BCD chainrings

    BUCKLOS 170mm MTB Crankset with 104BCD chainrings

    BUCKLOS • ★ 4.0/5 • Budget

    BUCKLOS crankset for mountain/commuter/e-bike bikes with 104 BCD, available in 32/34/36/38/40/42T. Lightweight and durable with 609g weight. One customer notes improved performance with oval chainring

    • 104 BCD ultralight crankset
    • available in multiple chainring sizes
    • suitable for various bike types
    Check current price on Amazon →
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    BUCKLOS 104 BCD 30T-38T MTB Crankset 170mm with BB

    BUCKLOS 104 BCD 30T-38T MTB Crankset 170mm with BB

    BUCKLOS • ★ 3.8/5 • Mid-Range

    Mountain bike crankset with 170mm arms, 74mm BCD, 30-38T options, and aluminum alloy construction. Features narrow-wide chainring design for smooth shifting and easy installation. Users note fit, quality, and value for money

    • narrow-wide chainring option
    • 170mm crank length
    • 74mm crank bolts/BCD compatibility
    Check current price on Amazon →

Buying Guide

Confirm spindle and bottom bracket type

Match the crankset's square-taper spindle to your bike's bottom bracket interface to avoid compatibility issues and extra parts

Check BCD and chainring sizes

Use the 104 BCD standard or the listed tooth counts (e.g., 32–42T or 46–52T ranges) to ensure proper gearing and fit with your front derailleur or single-ring setup

Consider crank arm length

Choose a 170mm arm if it matches your current setup—arm length affects pedaling leverage and clearance, especially on mountain bikes

Evaluate material and weight trade-offs

Aluminum arms and single-piece designs offer durability and lower weight compared with heavier steel options, which can influence ride feel and longevity

Match to your drivetrain type

Ensure chainring tooth count and spacing are compatible with your chain width and whether you run a multi-ring or single-ring e‑bike drivetrain