Can you purchase just the front gears

[unclemaui]

I do not need Cranks

ULTEGRA6600 53/39T is what I have.

thanks for any directions

[alienator]

I do not need Cranks

ULTEGRA6600 53/39T is what I have.

thanks for any directions

Yup, you can so long as they fit the crank. For your crank you need chainrings that fit a 130mm bolt circle.

[OldGoat]

Bicycle Chainrings (Chainwheels) from Harris Cyclery (http://www.sheldonbrown.com/harris/chainrings.html)
Chainrings at JensonUSA.com - Your Mountain & Road Bike online parts supplier! (http://www.jensonusa.com/store/sub/129-Chainrings.aspx)
Chainrings | Shimano, Campagnolo, Best Prices on QBike (http://www.qbike.com/category/chainrings.html)

[unclemaui]

Thank you Old Goat