BLB Track Chainring 1/8" 130 BCD

If you have a complete fixed gear or single speed with a 130 BCD, this is one of the most common types of chainrings you’ll come across. The BLB Track Chainring is a 1/8-inch chainring for 5-arm cranksets with a 130 mm BCD and fits bikes such as the Cinelli Tutto Plus and Gazzetta. A simple way to replace a worn chainring without having to replace the entire crankset.

When the teeth start to become pointed like shark teeth or are clearly worn down, it’s time to replace the chainring. If the chainring has been used for a long time, we recommend checking the chain and rear cog or freewheel at the same time. These components wear together, and a new chainring works considerably better when the rest of the drivetrain isn’t already at the end of its life.

The chainring is made of aluminum alloy, is designed for a 1/8-inch chain, and is available with 46, 47, or 48 teeth. The difference between the sizes is the gearing: 46T gives a slightly easier gear, while 48T provides a little more resistance and speed at the same cadence. 47T sits naturally in between and is often a good way to fine-tune gearing that feels almost right.

The BLB Track Chainring is primarily a good choice when you already have a 130 BCD crankset and want to continue building around it. Compared with the 44T BLB Freestyle Chainring, this one offers larger chainring sizes that are closer to the gearing many riders prefer on a classic fixed gear or track-inspired bike.

Quick facts

• Type: Chainring for fixed gear and single speed
• BCD: 130 mm
• Mounting: 5-bolt
• Chain width: 1/8"
• Sizes: 46T, 47T, and 48T
• Material: Aluminum alloy
• Weight: Approximately 110 g, depending on size
• Colors: Silver and black
• Compatibility: 5-arm cranksets with a 130 mm BCD and 1/8" chain
• Chainring bolts: Not included