Which cassette?

[CCS]

Today's dumb question (and I do apologise for the endless stream that seem to be clogging up this section)...

What cassette would people recommend for pure TT-ing purposes? Mainly flat courses...
I currently run an 11-28 on both sets of wheels - since that is what I need on the road bike (with a compact) to get around the Surrey hills, and my race wheels originally belonged to the road bike.
The TT is a standard double, so will never be taken into the hills, as my legs simply aren't strong enough to climb with that gearing. There may have recently been a small retail accident, which necessitates the purchase of another cassette... do I just get the same (though this wheel is for race purposes only, and will never go on the road bike) - after all, it never hurts to have spare gears... or are people secretly laughing at me for turning up at TTs with a gears the size of a dinner plate?

[Tritans]

I use an 11-25 and as you know my climbing isn't all that. I have no climbing related issues.

On another note, you've just ruined my week. but well done, you will notice the difference.

[Sir Jibbenstein]

12-25

An 11 is mainly for compacts, so go for a 12, unless you plan to be riding at 60+kph on the flat!
25 would let you spin uphill if it drags for a wheel. A 23 might do and give you nice close ratios to find the perfect gear.

Although I would add that I don't ride a standard double. When choosing the cassette for my race wheels I opted for an 11-25 instead of my normal 11-28 as I should never need to use a 28 in a normal race. If the course needs a 28, I won't be using those wheels anyway!

[ris]

12-25 or 12-23, depending on what sort of rider you are (cadence, power) and what sort of courses you are likely to be riding. if you are riding 11-28 at the moment and only using the larger chainring then for a flat-ish tt you are unlikely to find anything that you can't climb in 39/23 with a bit of oomph.

if you are using a 23 then just remember to swap the cassette over when you switch to a less flat route.

[Kevy427]

What cassette would people recommend for pure TT-ing purposes?

A C-60 with 1980's power ballads, assuming you're doing a 25?

[Sir Jibbenstein]

What cassette would people recommend for pure TT-ing purposes?

A C-60 with 1980's power ballads, assuming you're doing a 25?

When I saw you'd posted this is exactly what I expected. You're getting to predictable Kev

[Tritans]

An 11 is mainly for compacts, so go for a 12, unless you plan to be riding at 60+kph on the flat!

Dependant on cadence. Bearing in mind this is for TT's where you don't need to save you legs for the run, you can get away with lower cadence / higher gear, if that is your preference.

Also reaching that kind of speed is entirely possible on slight downhills.

I'd rather have it than not.

[jonathon.e]

What cassette would people recommend for pure TT-ing purposes?

A C-60 with 1980's power ballads, assuming you're doing a 25?

The problem with the C-60, was you couldn't put two albums on it, it had to be a C-90,, if you used a C-60 it was one album and two much empty tape.

But in the words of Bowwowwow.
C-30,C-60,C-90, go

[Jack Hughes]

11-21. 11-23 12-23 or 12-25 is probably the range you want.

Do you remember what the highest ans lowest you used were?

C-90 TDK-AD.

[Jack Hughes]

Actually, I'm going to have a look at your strava files... But I don't think you measure cadence...