KNOW BEFORE YOU COMMIT TO BUY: Read the ENTIRE DESCRIPTION. Look at ALL THE PICS. RESEARCH compatibility prior to purchase. Thank you!


Hello and thanks for checking out this listing for a single used Shimano Ultegra 6600 ST-6600 2x10-speed LEFT STI brake/shift lever for your Road, CX, gravel, or touring bike! This shifter was removed from a pre-owned bike during a component change and will come to you in the excellent used condition seen in the included photographs.

Classic STI design is compatible with all 2x10-speed DOUBLE mechanical Shimano *ROAD* drivetrains.

As with all used parts here at The House of Cogs, this shifter was treated to an expert teardown, cleaning, reassembly, and servicing using industry standard methods and lubricants. Shifting was testing under load with a cable installed.

For a complete view of the process every used shift lever goes through prior to sale, please check out the "GUIDES" tab (look for the magazine icon) on my Instagram profile.

Overall condition is a solid 8 out of 10 with typical signs of prior use such as burnishing and some imperfections on the braking blade. Name plate looks fantastic. Shifting action feels great with well-defined clicks. Lever return spring is smooth and strong. Hood shows typical signs of hand contact with just a hint of the "sticky" feeling most STIs exhibit due to age. 

Please see the included photo gallery of the actual lever you will receive. Shown with and without brake hood to provide a close look at the lever body and internals.

Enjoy FREE SHIPPING on this item within the USA!

Please contact me with questions, I will do my best to answer them. Review my feedback and buy with confidence. Thanks again!

Don't forget to follow me on Instagram at "thehouseofcogs"!