46T Crankset with 170 mm Square Taper Arms and 104 BCD Narrow-Wide Chainring

A small step up from 44T for steady rides

If 44T feels just a little low on your usual cycleway, this 46T crankset gives you a two-tooth step up. It pairs 170 mm square-taper arms with a narrow-wide ring for a compatible single-ring drivetrain.

In the same rear gear, 46T moves the bike about 4.5% farther per pedal turn than 44T. That makes it a useful option for steady stretches of sealed road. It also keeps the lowest gear about 4.2% lower than 48T on the same cassette.

Key Features

• The 46-tooth ring sits between 44T and 48T in the gearing range.
• Alternating narrow and wide teeth help keep a compatible chain seated on the ring.
• The 170 mm arms retain the same pedal circle when replacing another pair of that length.
• The four-bolt 104 mm mount lets you replace the chainring separately when it wears.

Specifications

• Crank arm length — 170 mm
• Bottom bracket interface — square taper
• Crank arms — black aluminium alloy
• Chainring — 46 teeth with a narrow-wide profile
• Chainring mount — four-bolt 104 mm bolt circle diameter (BCD)
• Chainring outside diameter — 193.05 mm

Benefits

1. Cover more ground per pedal turn than with 44T. On open sections, you can hold the same speed at a slightly lower cadence in the same rear gear.
2. Keep a slightly easier gear than 48T for starts and short rises. This suits routes that are mostly flat but still have the odd climb.
3. Keep a familiar pedalling position. If you already ride comfortably on 170 mm arms, you can change the gearing while keeping the same crank length.

Common Questions

• Q: When should I choose 46T over 44T?
  A: Choose 46T if you often want a slightly taller gear on flat sections. Choose 44T if you prefer an easier low gear for frequent stops or climbs.
• Q: How much more space does 46T need than the 44T version?
  A: The 193.05 mm ring is 7.75 mm larger across. At the same chainline, the teeth extend about 3.9 mm farther from the crank centre. Allow extra room for the chain.
• Q: How do I check whether this crankset fits my bike?
  A: Check for a compatible square-taper bottom bracket and a suitable chainline. Make sure the ring and chain clear the drive-side chainstay. Check that both arms clear the frame through a full turn.
• Q: Will I need a longer chain?
  A: If you are moving up from a smaller ring, check the chain length with the 46T ring and your largest rear sprocket. You may need a longer chain.

Summary

Choose this 46T crankset if 170 mm arms suit your fit and you want a modest step up from 44T. Check that your lowest gear still suits your route and that the 193.05 mm ring clears the frame with the chain fitted.