Freewheels
Shimano Ultegra 10sp CS-6600 Cassette
Compatible with all Shimano 9 and 10 speed freehubs. Largest cogs are on a carrier to reduce weight and reduce freehub spline stress. Specify Size 11-23, 12-23, 12-25, or 12-27.
Shimano Dura Ace 10sp Cassette CS7800
The most advanced Cassette on the market. A good balance of lightweight and durability, the aluminum alloy carrier holds up to 4 titanium cogs, the balance are nickel plated to extend wear. Average weight 173 g.
Shimano 105 HG70 9spd Cassette
Retail: $41.99 (21% off!)
9 speed cassette for the 105 9 speed components. Polished steel and drilled for lightness. Specify Teeth: 12x23, 12x25, 13x23 or 13x25.
Shimano M580 9 speed Cassette
Save some bucks without sacrificing performance by using less expensive LX cassettes with your XT or XTR drivetrain. Largest cogs are on a carrier to save some weight, 390g.
Nashbar 6 Speed Freewheel
Retail: $24.95 (20% off!)
Modern shift ramps and machined teeth in a classic SIS compatible freewheel, all at one great price, what more can you ask for! Use standard Park FR-1 freewheel tool for installation/removal. Choose from 14-24 (14, 16, 18, 20, 22, 24) or 14-28 (14, 16, 18, 21, 24, 28).
Sram PG-970 9 Speed Road Cassette
Retail: $59.99 (17% off!)
Excellent shifting performance, long lasting steel cogs, and great looking chrome plated finish, SRAM cassettes are a favorite alternative to the other Big S cassettes. Shimano and SRAM compatible.
Shimano CS-6600 Wide 10 Speed Cassette
Special ratios perfect for odd sized wheels, or better sized gears for touring and training.