SRAM Red groupset, cheaper cassete for powertap

JimboPlob

I have a bike running SRAM Red and have a SRAM PG10-70 on my good set of wheels.

I also have a powertap which I swap in/out for training. I cant be doing with changing the cassette between wheels every time, so would be looking to use a separate cassette.

1) Are there any gotcha's with this? Will I need to replace chains more often?
2) What is a good cheaper alternative that I can use with the powertap without doing any damage to my SRAM Red components?
3) I would also like to run the same cassette on the power tap with my TT bike which is currently running 105, again, any issues with this?

Thanks

ddraver

1) Chains will wear more quickly and therby may also wear the chain rings faster - make sure you keep an eye on chain wear and repalce when neccessary
2) Does nt matter
3) see 1

I think....

itsnotarace

I run two sets of wheels regularly and use two identical cassettes so the rear mech doesn't need adjusting when I swap wheels. I keep one chain per cassette so each chain gets the same amount of wear as the cassette. To quickly swap chains when I swap wheels I use KMC missing links on each.