Shimano Deore FC-M590 Chainring - 36t, 104 PCD, 4-Bolt, 9-Speed, Black

The Shimano Deore FC‑M590 Chainring 36T is a genuine Shimano replacement chainring designed for Deore triple cranksets. Built for durability and reliable shifting, it’s a common replacement for worn middle or outer rings on older 3×9 mountain bike drivetrains.This chainring is known for its strong steel construction and reliable Shimano shift ramp design, which helps maintain smooth front shifting on older 9-speed MTB drivetrains while keeping replacement costs low.

Key Features

• 36 teeth (36T) chainring
• 104 mm BCD (bolt circle diameter)
• 4-bolt mounting pattern
• Designed for 9-speed Shimano drivetrains
• Durable steel construction for long wear
• Compatible with several Shimano cranksets including FC-M590 and FC-M591

Compatibility

• Fits Shimano Deore FC-M590 triple cranksets
• Also works with select Shimano Alivio and other 104 BCD 4-bolt MTB cranks
• Intended for 3×9-speed drivetrains using Shimano HG chains

Typical Use

• Mountain biking (XC, trail)
• Touring or commuting bikes using triple cranksets
• Replacement for worn middle or outer rings on 104 BCD spiders