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Wheel-on, direct drive or smart trainer — which one to pick

Gear · 7 min read

Buying your first trainer, the sheer amount of jargon is more intimidating than helpful. Wheel-on, direct drive, smart, FTMS... in the end, it comes down to three product categories with pretty clear trade-offs in price, noise, realism and accuracy. Let's break each one down.

Magnetic or fluid wheel-on: the entry point

This is the simplest and cheapest model: a roller presses against your rear tire and generates magnetic or hydraulic resistance. Pros: affordable, easy to store (folds up small), and works with any bike with no modification. Cons: resistance is usually fixed or manually adjusted (no automatic app control), the tire wears out faster from friction, and it tends to be louder than the other types. For someone just starting out and testing whether they'll actually stick with indoor training, this is the entry point that makes the most financial sense.

Direct drive: taking the tire out of the equation

Here you remove the rear wheel and mount the chain directly onto the trainer's own cassette. This eliminates tire wear, drastically cuts noise (no tire-roller friction), and delivers more precise and stable power transmission. It's a step up in price from wheel-on, but for anyone training regularly (3+ times a week), the gain in quietness and durability is usually worth it.

Smart trainer (FTMS): the trainer that talks to your app

"Smart" isn't a separate physical category — it's a layer of intelligence (usually on top of a direct drive, though smart wheel-on models exist too) that connects over Bluetooth using the FTMS (Fitness Machine Service) protocol, the standard most indoor training apps speak, including Peba Pro. With that, the app automatically adjusts the trainer's resistance to match the simulated route's gradient — you feel the climb get heavier without touching anything manually. It's the priciest tier, but also the most immersive and the one that gets the most out of route simulation.

Which to choose: beginner vs serious training

• Just testing whether you'll keep the habit: a basic wheel-on. Low investment, low risk.
• Already training regularly and want less noise/wear: direct drive (even without "smart").
• Want the full route-simulation experience with automatic resistance: a smart FTMS trainer.

There's no wrong answer here — there's the right trainer for where you are right now. The important thing is not letting the price tag of the "dream" setup become your excuse to not start today with what you already have or can afford.