For 2011, the new XO returns as a complete product family, featuring the legendary XO rear derailleur, trigger shifters and an all new 2X10 crankset with front derailleur which promises amazing shifting performance. New Avid XO brakes provide the first XO specific brakeset to complete the family.

Family is the word that SRAM are using for their groupset, in fact they are going as far to say that it goes beyond a groupset as they also include suspension forks, handlebars, stems and seatposts.

The new XO borrows loads of technological innovations from its bigger (and much more expensive brother) XX which has taken the XC world by storm this year.  SRAM has made a firm commitment to its belief in the 2×10 crankset for its high level ‘families’ from X7 up, something that we agree with and that may yet become a defining characteristic between Shimano and SRAM (although they do still make a triple).  Why would you need one with a 11-36 cassette?

For now XO will continue what it has been doing very successfully for years - winning World Cups in XC, DH and 4X and World Championships many times over.

Available in four color variations (red, gold, silver, blue), with multiple gear ranges, derailleur cage lengths and disc rotor sizes the new SRAM XO (2×10) is the key to an incredible level of performance and integration for a variety of applications, from all-mountain to gravity riding, right up to XC racing.  Check out sram2×10.com for more.

Availability: August 2010.  Expect major groupset wars over the winter as both SRAM and Shimano have totally revived their lineups in the past 12 months.

Product Specifications-

X0 10-Speed Rear Derailleur
Options Available in Long, Med. and Short cage
Weight 190 grams
Technology Exact Actuation Ratio, Direct Route Technology
Speeds 10
Compatibility Exact Actuation Ratio, 10 Speed; 36t maximum
Material Forged Aluminum, Carbon
Fiber Composite, AL-7075-T6 /Stainless Steel
Pulley Bearings Sealed Bearing
X0 10-Speed Front Derailleur
Weight 130g
Speeds 2X10 and 3X10
Cage Material Steel
Clamp Material Aluminum
Chainstay Angle 66-69˚
Seat Tube Mount High Clamp / Low Clamp (31.8,
34.9, 38.2) Low Direct Mount
(S1, S3) and High Direct Mount
Cable Routing Top or bottom
X0 10-Speed Trigger Shifters
Weight 232g (2X10)
Technology Exact Actuation
Speeds 2X10 and 3X10
Compatibility Exact Actuation RD and FD
Matchmaker MatchMaker X
Clamp Adjustable
Release Lever Composite
Pull Lever Forged AL, adjustable
Inner Wire 1:1
Main Bolt Stainless
Barrel Adjuster Yes
Cover Aluminum
X0 10-Speed Crank Sets
BB BB30, PF30, GXP, PF GXP
Weight 198g
Chainring Materials Alloy
Chainring options 2X: 26-39, 28-42, 3X: 22-33-44
Compatible Chain Type SRAM 10 Speed
BCD 80/120
Crank Length 175 or 150
Crank Arm Material Carbon composite
Team GXP Bottom Bracket
Bearings Two Sealed Cartridge Bearings
Tech Feature Gutter Seal Technology
BB Shell Wide 68mm and 73mm
Avid X0 Brakes
Weight 333 grams (Front; Post Mount;
160mm)
Rotor size 160/185/203 G3 Clean Sweep
Caliper 2 Piece Forged Aluminum
System 2 Piston; Open System
Pads Organic
Additional Features Tools free contact adjust;
Tooled reach and banjoadjustments
XG-1080 Cassette
Options 11-32, 11-36
Weight 235g
Technology X-Glide and Exact Actuation
Recommended Chain SRAM 10 Speed
Lock Ring Material Aluminum
Sprocket Material Aluminum
Sprocket Finish Steel
PowerChain 1091 Chain
Weight 257 Grams (114 links)
Closing Link PowerLock^TM tool-less connecting link
Pin Treatment Chrome Hardened Pins
Rivet Type Hollow Pin
Compatible Gears 10