Nassa

Hello,

Last year I bought a set of wheels (HED C2/ white industry hubs) that replaced my stock aksium wheels. I have been swapping my cassette over but realized I should maybe buy a new cassette. I have an ultegra 6700 11-28 cassette right now, should I buy a new ultegra cassette for my new wheels or buy a 105 or tiagra cassette for old wheels? Advantages? Do I need to stay with the 11-28 cassette. What tires would you put on the HED C2 wheels?

Sorry for all the questions in one post and thanks for looking.

Jiggle

Competitive cyclist has Michelin pro4 service course for $35. You can find dura ace 10 speed cassettes for pretty cheap so I'd get one of them, in 11-25.

revchuck 

Put the old cassette on the old wheels, since they're apparently a backup. Unless you need that 11t cog, don't get a cassette with one. If you live in an area with little or no climbing, a 105 12-25 cassette would be fine; if you've got steeper hills, a 105 12-27 would be better.

Nassa

Is there any adjustments I need to make when I swap wheels if I get the 12-27 cassette?

revchuck 

Not due to its being a 12-27. If you could swap the cassette between wheels before and not have to make any adjustments to the rear derailleur, you'll be good to go. Note that it might be a good time to check if you need a new chain - they wear out more quickly than cassettes.

Drew Eckhardt 

Eddie Merckx dominated the spring classics with a 52x13 big gear, so the rest of us should be fine with a 13 tooth first position cog even with a 50T big ring.

That allows (my favorite) the 13-14-15-16-17-18-19-21-23-25/26 with one-tooth jumps through the 19 cog like 12-23 but a better chainline on the big end of the cassette and easier climbing gear. 12-23 is also fine for a fit rider.

Shimano does the CS-6600B with a 25T final cog; Campagnolo 13-26.