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MICROSHIFT

MICROSHIFT SWORD BLACK 1x Crankset

Manufacturer’s ref.: FC-G7900-40 / FC-G7900-42
The MICROSHIFT SWORD BLACK 1x Crankset is the entry point to single-chainring setups in the SWORD gravel range. Its aluminium narrow-wide chainring retains the... Read more

Recommended price* : 89,99 €

Regular price 79,99 €
Regular price Sale price 79,99 €
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Highlights

  • JIS square-taper spindle: compatible with some of the simplest and most economical bottom brackets, ideal for an older frame or touring bike.
  • Aluminium narrow-wide chainring: keeps the chain in place without a guide or roller on rough trails.
  • 705–715 g depending on the chainring: light for a square-taper crankset.
  • 50 mm chainline: provides the clearance needed for high-volume gravel tyres.
  • Four crank arm lengths from 165 to 175 mm.
  • Compatible with both 9- and 10-speed setups: ready for drivetrain upgrades.

Description

The MICROSHIFT SWORD BLACK 1x Crankset is the entry point to single-chainring setups in the SWORD gravel range. Its aluminium narrow-wide chainring retains the chain without a guide, while its JIS square-taper spindle makes it compatible with some of the simplest and most economical bottom brackets on the market — a real advantage when equipping an older frame or touring bike.

At 705–715 g depending on the chainring, it remains light for its category. Its 50 mm chainline provides clearance for high-volume gravel tyres, while four crank arm lengths from 165 to 175 mm suit a range of riders.

Which bottom bracket? A 68x113 mm JIS square-taper bottom bracket for a 68 mm threaded frame.

Can double chainrings be fitted? No: this crankset is dedicated to single-chainring setups. For a 2x build, choose the SWORD BLACK 46/29 or 48/31 crankset.

Technical information

Models: FC-G7900-40 (40 teeth) and FC-G7900-42 (42 teeth).
Speeds: 9- and 10-speed, single chainring.
Chainring: aluminium, narrow-wide teeth.
Bolt circle diameter (BCD): asymmetric 110 mm, 4-arm.
Crank arm lengths: 165 / 170 / 172.5 / 175 mm.
Chainline: 50 mm.
Spindle: JIS square-taper, 68x113 mm bottom bracket, 68 mm threaded frame.
Weight: 705 g with 40 teeth, 715 g with 42 teeth (172.5 mm crank arms).
Compatibility: microSHIFT SWORD BLACK 1x and SWORD 1x groupsets.
Not convertible to a double chainring.

Price information

*Recommended retail price from supplier in September 2026