ItemOracle

Best Bike Cranksets for Oval/Round Chainring Configurations (2026)

• 3 products compared from 1 brand • avg ItemOracle score 4.0/5

We selected cranksets by matching 104BCD compatibility, crank arm length options, construction quality, and overall value for oval and round chainring use

The Verdict

This roundup compares cranksets suited for oval or round chainring setups, focusing on fit, compatibility, and value for riders upgrading or replacing MTB cranks. Picks were chosen by matching bolt circle diameter (104BCD), crank length, and construction against common oval and round chainring needs

Top Picks

  1. 1
    BUCKLOS 170mm MTB Crankset with 104BCD chainrings

    Best Overall BUCKLOS 170mm MTB Crankset with 104BCD chainrings

    BUCKLOS • ★ 4.0/5 • Budget

    Best budget fit for MTB riders: 104BCD 170mm crankset offering straightforward compatibility for oval or round rings

    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 →
  2. 2
    BUCKLOS 170mm MTB Square Taper Crankset with 104BCD Chainrings

    Best Value BUCKLOS 170mm MTB Square Taper Crankset with 104BCD Chainrings

    BUCKLOS • ★ 4.0/5 • Budget

    Best for square-taper setups: 170mm square-taper crankset built to pair directly with 104BCD oval or round chainrings

    BUCKLOS 104 BCD crankset in 170mm with 32/34/36/38/40/42T options. Lightweight and durable for mountain, commuter, and e-bike setups. Users note good value and easy installation, some report chain drops and mixed durability

    • 104 BCD ultralight crankset
    • includes 32/34/36/38/40/42T options
    • fits various bike types (mtb, commuter, e-bike)
    Buy at Amazon →
  3. 3
    BUCKLOS MTB Crankset 170mm 104BCD with 32/34/36/38/40/42T rings

    BUCKLOS MTB Crankset 170mm 104BCD with 32/34/36/38/40/42T rings

    BUCKLOS • ★ 4.0/5 • Mid-Range

    Best gearing variety: 170mm crankset available with 32–42T ring options to suit multiple terrains and ring shapes

    Bucklos 170mm crankset with 104BCD offers lightweight durability for mountain, commuter, and electric bikes. Features round/oval chainrings and multiple tooth options for versatile gearing

    • 104 BCD ultralight crankset
    • multiple chainring sizes
    • fits ebike/commuter bikes
    Buy at Amazon →

Buying Guide

Match BCD to your chainrings

Confirm the 104BCD pattern to ensure oval or round chainrings bolt up without adapters or spacing issues

Choose the right crank length

Select 165–175mm based on rider height and leg length to maintain optimal pedaling biomechanics

Check spindle and bottom bracket type

Verify square-taper or other spindle compatibility with your bike’s bottom bracket to avoid extra parts

Prioritize durable materials

Look for forged or CNC-machined arms and sealed interfaces to resist wear from oval chainring loads

Consider gearing range

Pick ring tooth counts (32–42T options) that suit your terrain and cadence when using oval or round rings