Bassi Narrow-wide 42-tooth Chainring, 130BCD

This low-gear narrow-wide chainring allows you to use a single front chainring with up to 11 cogs on the rear. It'll fit 130mm BCD cranksets (common for road double and casual track cranks), we've made a few over the years and they're pretty common kicking around the bike world.

The alternating-width tooth pattern serves as chain retention but is still best used with a "one-by" specific clutched rear derailer.

• For 3/32" chains (8-thru-11 speed)
• BCD 130mm
• 42-tooth
• Aluminium
• Silver or black anodized