> Entry-level rollers are good just for technique/concentration (not enough resistance unless spinning a high gear)? TTs better for resistance/intervals etc?
I use both rollers and a TT, Rollers are excellent for technique and work well for level 2 workouts, boredom is not an issue for as I listen to the excellent Velocast Race Radio podcast
> Will be for MTB use only (for now anyway), so anything that takes a 26″ should be fine?
Most TT are OK with both wheel sizes
> Best to run a trainer tyre? Currently running 317s so maybe limited to how narrow I can go. Am thinking of using a spare wheel but with the same cassette/chain.
Get a spare wheel with a trainer tyre or road tyre, yes.
> Noise – anyone used a quiet one downstairs while there’s a 15 month-old sleeping upstairs? I reckon it’ll be too noisy so I’ll have to do daytime sessions. A camping mat any good? Or a proper mat?
? Riser block normally needed?
I use a camping mat and a block of wood, perfect
> Resistance – can be altered on the fly (by remote?)? Can you normally use your gears as well?
The better TT can be, yes
> Countering the boredom factor – surely Sufferfest et all are the way to go? Watching films/TV probably not the most stimulating?
Sufferfest all the way for me
> Speaking of Sufferfest – doesn’t each video get boring when you’ve done it a couple of times? You know the route and it has the same old climbs, descents, attacks, etc. Or do they randomise some bits?
No they do not get boring, twice or thrice a week, mix the films up, there are currently 5 or 6 to buy.
> Necessary to hook up to HRM/bike computer/PC/iPhone? I guess tracking HR/distance/cadence etc is a bonus but not a necessity?
Not needed but can be done with the top level Tacx and Elite TT
Elite have a new 2012 TT out that increase/decreases resistance, shows power readings, cadence, speed, distance etc, all via a ANT+ head unit. Neat!