Description
Will this work?
- Shimano Dura-Ace CS-7800 cassette
- 12-27T, complete with lockring
- 10-speed, Shimano/SRAM 10s compatible
- Largest three cogs titanium on alloy carriers
- Smaller cogs steel
- Fits standard Shimano HG freehub
Condition
Excellent used condition. Titanium cogs show minimal wear — Ti at this thickness outlasts steel — and the smaller steel cogs show little to no wear. Teeth are sharp and uniform across the stack. More than enough miles left.
Notes from MyBikeThing
Top of the line when 10-speed ruled the pro peloton — titanium big cogs on alloy spiders keep weight down where cassettes get heavy, and 12-27 is the ratio everyone actually wants: enough top end with real climbing gears. Japan-made and built to last.
Workshop Wisdom
Torque the lockring to the full 40Nm marked on it — an under-torqued lockring lets cogs shift microscopically under load, which chews the freehub splines long before it makes noise.
Guarantee
You put in the miles, we put in the work! 30-day Guarantee, rest assured of fit, function and condition 🙂
Keywords
Dura-Ace CS-7800, 12-27 cassette, 10 speed cassette, titanium cassette, Shimano Dura Ace, road cassette, DA 7800, climbing cassette, HG cassette, 10s road, Japan Shimano













