52T Bicycle Crankset with 170 mm Square Taper Arms and Motsuv Narrow-Wide Chainring 104 BCD Black

Taller gearing for long stretches of flat road

If you regularly spin out on a 48T ring, this 52T bicycle crankset gives you another step up. It pairs 170 mm square-taper arms with a Motsuv narrow-wide ring for a compatible single-ring drivetrain.

With the same cassette and wheel size, 52T moves you about 8.3% farther per pedal turn than 48T. Compared with 44T, the increase is about 18.2%. Every gear gets taller, so check that your lowest gear still suits your starts and climbs.

Key Features

• The 52-tooth front ring suits riders who want taller gearing for flat roads and open cycleways.
• 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 BCD mount lets you replace the chainring separately when it wears.

Specifications

• Crank arm length — 170 mm
• Bottom bracket interface — square taper
• Crank arm material — aluminium alloy
• Chainring — Motsuv MOTSUVCR52T-B with 52 narrow-wide teeth
• Chainring mount — four-bolt 104 mm bolt circle diameter (BCD)
• Chainring outside diameter — 217.3 mm
• Chainring marking — 9-, 10- and 11-speed
• Chainring material — aluminium alloy
• Chainring weight — 115 g ±5%
• Colour — black

Benefits

1. Hold the same speed at a lower cadence. In the same rear gear, a 52T ring takes fewer pedal turns than a 48T ring.
2. Keep a familiar crank length. If 170 mm arms suit your fit, you can change the gearing while keeping the same pedal circle.
3. Use the ring diameter to check fit before ordering. The 52T ring is 15.7 mm larger across than the 201.6 mm 48T version. Its teeth extend about 7.9 mm farther from the crank centre.

Common Questions

• Q: When should I choose 52T over 48T?
  A: Choose 52T if you often spin out in your highest gear on 48T and mainly ride flat routes. Choose 48T if you prefer a lower gear for starts or climbs.
• Q: Why use 170 mm crank arms with a 52T chainring?
  A: Choose 170 mm if that arm length suits your fit. The arms determine the size of your pedal circle. The 52T ring and rear sprocket together set the gear ratio.
• Q: How do I check whether the 217.3 mm ring will clear my bike?
  A: Check that your frame has room for the ring and chain beside the drive-side chainstay. Confirm the installed chainline and 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 52T ring and your largest rear sprocket. You may need a longer chain.

Summary

Choose this 52T bicycle crankset if 170 mm arms suit your fit and you want taller gearing than 48T. Before ordering, check your lowest gear and allow room for the 217.3 mm chainring with the chain fitted.