SRAM X.0 9-Speed Rear Derailleur

by Sram

Product Features

• It weighs 203g
• Actuation ratio is 1:1
• It also has titanium main spring
• Carbon fiber outer cage
• It has 6061 forged aluminum inner cage

Product Description

Pimp out your bike with Sram's new colorized XO components.

Product Details

• Shipping Information: View shipping rates and policies
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B003BNY400
• Item model number: Rd-Rear D-66
• Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
• Amazon Best Sellers Rank: #114,413 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

Customer Reviews

Most Helpful Customer Reviews

5.0 out of 5 stars Best SRAM rear derailleur ever produced, February 26, 2011

By 

Velocipede (Palm Desert, CA USA) - See all my reviews

This review is from: SRAM X.0 9-Speed Rear Derailleur (Sports)

The SRAM 9-speed X0 rear derailleur with the alloy cage, is literally BOMBPROOF. I liked mine so much I hunted high and low for the exact same one, and finally found one cheap. This is the non-Black Box Technology, ESP 1:1 ones with the forged alloy cage. They are only 30 grams heavier...but nearly indestructible, compared to the flimsy, carbon-caged, Black Box versions. This thing NEVER misses a shift, pulverizes finger-sized twigs and with the titanium Parallelogram spring - chain slap is simply a thing of the past. Couple these with XO twist shifters - and going from the largest cassette cog to smallest is done with a simple twist...4x faster than anything Shimano currently offers!

The BEST rear derailleurs SRAM ever made were positively the 2002-2005 model year ones, with the Grilon carbon graphics, on the light composite P-knuckle and cable guide. Even the clunky-shifting 10-speed X0 cannot compare. With over 4 riding seasons and nearly 3500 trail miles of use...this durable race part makes no compromises whatsoever.

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