Over the years have used :
- cheap rollers (2000ish years)
- Kreitler Challenge (2003 > 2007)
- TruTrainer (2007 > 2020) at home. Upgraded with the Smartload rear roller last year.
- Elite Quick-Motion (2016 > 2019) at the office
- Elite Nero (2019 < 2020) at the office
Got to ride E-Motion back in 2008 while in California after Sea Otter Classic.
In term of fore-aft float E-Motion is superior to Quick-Motion and Nero.
Rollers size and inertia are too very “bigger” deals IMHO. Bigger rollers and more inertia on TruTrainer makes having fore-aft movement “not absolutely necessary” on this product (disclaimer : I would not sprint at 1000+ watts but can easily climb for a minute at 350 watts if I feel like it, actually much much easier than on Elite Nero which has fore-aft movement but rollers are too small in diameter !). Mines are 13 years old and nothing come close.
During my lunch rides on week days I very often ride Nero at my office, it is a “smart” trainer, it has weight added to the rear rollers to create some kind of inertia and it is far better in that sense than the Quick-Motion. On that one on resistance 2 & 3 the dead spot feels bad because the roller has too much resistance and not enough inertia so you feel your pedals slowing down at dead spot !!! Nero is better but so far behind TruTrainer still.
I’ve wanted to create a floating plate to add fore-aft movement to my TruTrainer for a while but honestly it works so well without it that it’s a project I’ve pushed to “later” for years now…
My souvenir of E-Motion (Us version) is good in term of “floating” but not in term of inertia. I would go TruTrainer anytime & if I had more time to build my plate then I would do it.
A couple of good resources to build a plate :
https://youtu.be/XrQOgDK_IOk
https://youtu.be/StcY7bG1xzs
https://youtu.be/bzTIFgI1fbE
Disclaimer : I work for LOOK and I’m in no way working for TruTrainer (paid a lot of money and shipping to France back in 2007 but never regreted it !)… just sharing my experience of different rollers…