170mm Crankset BCD104 Aluminium Alloy Square Hole Bike Crank Arms

$79.99
or 4 interest-free paymentsof $20.00 with
SKU: 104BCD170MM-CAS

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Smooth Power in Every Stroke

This premium 170mm Crankset is crafted from lightweight yet durable aluminium alloy, offering riders a reliable upgrade for commuting, MTB, gravel, or general cycling. The 104mm BCD 4-arm design supports a wide range of single or double chainrings (sold separately), while the longer 170mm arm length provides smooth leverage for climbing and all-day riding.

Key Features

  • Material: Aluminium alloy for strength and durability
  • Crank length: 170mm
  • BCD: 104mm – 4-arm mount
  • Compatible with single and double chainrings
  • Square taper bottom bracket interface
  • Colour: Black
  • Weight: Approx. 630g (pair)

This crankset does not include a chainring. If you require one to complete your build, we stock a wide range of tooth counts and colours to suit most setups.

Recommended Chainring Setups

Single Chainring (1× Setups)

  • 30T, 32T, 34T, 36T
  • 30T & 32T – Best for steep climbs, trail riding, and bikepacking
  • 34T – Great all-round option
  • 36T – Ideal for flat terrain, gravel, and higher-speed riding

Double Chainring (2× Setups)

  • 36T / 22T – Popular XC climbing combination
  • 38T / 24T – Balanced mix for varied terrain
  • 40T / 28T – Suitable for gravel and touring

Benefits of This 170mm Crankset Arm Set

  1. Longer crank arms provide smoother, more efficient leverage.
  2. Strong alloy construction resists flex under load.
  3. Compatible with a wide range of MTB, gravel, hybrid, and commuter bikes.
  4. Versatile 104mm BCD supports many chainring options.

Common Questions

  • Q: Does this crankset include a chainring?
    A: No, but matching chainrings are available separately.
  • Q: Will this work with a standard 68mm bottom bracket?
    A: Yes, as long as it uses a square taper interface.

Summary

The 170mm Crankset delivers dependable performance with its lightweight alloy build and efficient leverage. Ideal for upgrades or replacements on MTB, gravel, commuter, or road bikes using a square taper bottom bracket, it offers excellent chainring compatibility and smooth pedalling suitable for all types of terrain.