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Sun Race

SunRace RDM900 9-Speed Rear Derailleur

£34.99 £54.99
Save 36%
Color: Black

Delivery & shipping info
How quickly will you dispatch my order?

If you place your order before 3 pm on any weekday we will dispatch your order the very same day!

Anything after this time will be despatched the next day.

Please note: this applies to the working week i.e. Monday – Friday and dispatch times may vary following a bank holiday.

How much does delivery cost?

Nothing! Our standard U.K. delivery (available on all items) is free!

Need it faster? No problem! We also offer next day delivery from £2.50!

International delivery: Calculated at checkout

Need more help?

Whether you need some help with a product query such as sizing or have questions and comments about our services, our customer services team is here to help. You can contact us by phone, email, or live chat.

Phone: 01384 476 267

Email: info@sportandleisure.com

SKU: RD50076
EAN: 4710944268430

Description
SunRace RDM900 9-Speed Rear Derailleur

The SunRace RDM900 is built for riders who want serious gear range without the complexity or cost of modern high speed drivetrains. Designed around a wide range 11 to 50T cassette, it delivers the climbing ability and versatility needed for gravel, MTB, touring, city bikes and e bikes, while retaining the simplicity and durability of a 9 speed system.

A key advantage of the RDM900 is its 1:1.7 pull ratio, making it fully compatible with Shimano 9 speed shifters. This allows riders to build wide range drivetrains using reliable and affordable Shimano controls while benefiting from the huge cassette capacity the RDM900 offers.

To maintain chain stability across such a large range, the derailleur features an adjustable chain stabiliser clutch, reducing chain slap and improving drivetrain control on rough terrain. The lightweight alloy bracket, outer link and cage construction keeps weight low while maintaining strength and durability for off road use.
 
  • Speed: 9 speed
  • Cassette Range: 11 to 50T
  • Max Drivetrain: 1x ≤51T
  • Pull Ratio: 1:1.7 (Shimano 9 speed compatible)
  • Chain Stabiliser: Adjustable clutch
  • Material: Alloy bracket, alloy outer link, alloy cage
  • Fitting: Direct mount
  • Weight: 270g
  • Colour: Black
  • Group: SunRace M9
  • Intended Use: Gravel, MTB, E bike

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