Sugino Zen Track Chainring 144mm - 57T through 58T

The Sugino Zen Track Chainring 144mm has earned its place at the velodrome through competition — this is the same chainring that has appeared on Olympic and World Championship podiums. Machined to tight tolerances for the 144mm bolt circle diameter standard, it delivers the rigid, direct power transfer that track sprinting and pursuit racing demand. Available in 57T and 58T, both in black, these tooth counts are suited to riders pushing serious gear ratios at high cadence on the boards.

The Zen's narrow tooth profile and precise machining are designed to minimize chain flex, keeping drivetrain losses as low as possible when watts are the only currency that matters. At this level of competition, a chainring that holds its line under load isn't a luxury — it's the baseline.

Sugino Zen Track Chainring 144mm Specs at a Glance

• Bolt Circle Diameter: 144mm
• Available Tooth Counts: 57T, 58T
• Color: Black
• Compatibility: Track drivetrains with 144mm BCD
• Intended Use: Velodrome / track racing