• Shimano Deore M590 9-Speed Triple Chainset

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Shimano Deore M590 9-Speed Triple Chainset

Shimano's Deore M590 9-Speed Triple Chainset is a cost-effective lightweight and durable performer. Made from aluminium and steel, this chainset performs well when shifting under load due to the inclusion of Shimano's SG-X chainring and their bespoke spike pins. This two-piece 9-speed chainset is a superb replacement or upgrade chainset for your current rig.

Stiff and Light Chainset

This Deore FC-M590 chainset features a firm two-piece construction with an outboard bearing system. The integrated Hollowtech II axle offers excellent stiffness-to-weight ratio, which you'll benefit from on the climbs as you enjoy a smooth shifting chainset.

Shimano Deore M590 9-Speed Triple Chainset

Durable Chainset

This Shimano chainset is manufactured for durability. The inner and middle chainrings are made from hardwearing steel whilst the outer chainring of this chainset is made from aluminium. The complete package is a two-piece chainset that is strong and durable. Whether you're tackling an Endruo or Downhill event, or simply hitting the trails for fun, this 9-speed triple chainset is ready to perform.


  • External Hollowtech II Bottom Bracket (Included)
  • Great value Deore 2-piece design chainset for 9-speed transmissions
  • The 2-piece design chainset features an external bottom bracket system which is a lightweight rigid design that is incredibly strong and durable
  • Lightweight and rigid steel bottom bracket axle
  • SG-X chainring with patented spike pins give smooth and fast gear shifts under load
  • Lightweight aluminium outer with steel middle and inner chainrings
  • We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit
  • Mega9 compatible


  • Crank Construction: 2-piece solid crank
  • Cassette Compatibility: 9-speed
  • Chain Compatibility: Super Narrow HG for 9-speed
  • 4-Arm Chainrings: Yes
  • Chainring Sizes: 44-32-22T/48-36-26T
  • Bolt Circle Diameter: 104/64mm
  • Outer Chainring: Aluminium
  • Middle Chainring: Steel
  • Inner Chainring: Steel
  • Chaincase Compatible: No
  • Bottom Bracket: SM-BB51
  • Chain Line: 50mm
  • BB Shell Width: 68/73mm

A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
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Buying Guide

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