Ultegra 6600 Series Sti Single Lever

• Complete left (front), cables and housing not included
•  FD/Shifter Compatibility: Shimano Road Double
• Brake Lever Actuation: Short Pull
• Brake Lever Use: Left
• Weight: 245 g

• Rear Wheel Type: Road
• Rear Hub Spacing: 130 mm
• Weight: 347 g
• Hub Drilling: 36 spokes
• Rear Axle Type: 10x1
• Cassette Body Type: Shimano 10,Shimano 9
• Hub/Brake Compatibility: Rim Brake

• Does not have O-rings
  

The new Ultegra brake calipers incorporate a dual pivot design for maximum braking power and modulation. A convex washer adjustable brake shoe makes adjusting toe-in a snap. Also new is an impoved brake pad compound that improves services life over 100%.

Please note, the Ultegra 6600 brakes are sold singly. Order both a front and a rear if you need brakes for a complete bike.

The new Ultegra 6600 hubs offer compatibility with boththe new 10 speed cogs, as well as older 9 speed cogs. Both hubs utilize smoothrolling loose ball bearings with super-high polished races and internal greasesleeves to maintain and increase service life as well as extend performance.

• Front hub is now Shimano-approved for radial lacing
• Rear hubs works with 9 or 10 speed cassettes

Ultegra front derailleur designed for 10 speed drivetrainswith a traditional double crank up front. The wide-link design offers 20% increasedrigidity for better shifting and compatiblity with 10-speed specific cranksets.

The new Ultegra 6600 series dual control levers offer Dura-Ace-inspiredstyling and function. The refined hood fits the hand better, while the shiftlevers now move in a more ergonomic, arced stroke. The entire grip is now 5mmsmaller in circumference, allowing it to fit more hand sizes. Designed specificallyto handle 10 speed rear drivetrains (specify double or triple for left sideshifter).

• Item includes left and right shifter/brake levers (enough for one bike).

• Does not have O-rings
  

Ultegra now steps into the 10 speed world with the introductionof the 6600 cassette. A wide variety of gearing options let you choose justthe right combo for your ride. Shimano-patented ramps and tooth profiles ensureeffortless shifting.

• Compatible with both Ultegra or Dura-Ace 10 speed cassette bodies, as well as 9 speed 105, Ultegra, Dura-Ace, and most other 9 speed cassette bodies
• Requires Shimano super-narrow 10 speed chain