Hi, I’m new to Zwift. Did a couple of experimental rides and the a FTP test. Today I followed a route London Pretzel. It consisted of a few laps round central London and then a couple of climbs in the Surrey Hills. My question concerns the speed and gradient when following a route. I’m spinning alon…

[image] David_Shaw2: I don’t have a speed censor nor a power meter. What sort or trainer do you have?

Make sure you have the Controllable device paired, as well as Power and Cadence from the trainer. It sounds like you don’t have Controllable paired, and if so then that would explain why you don’t feel the pedalling resistance change with the gradient.

What’s the Controlable? The Trainer is paired to Zwift by Bluetooth. The power readings seem pretty accurate. My FTP test result was pretty much what I was expecting

Thanks. In other words Zwift does a calculation to estimate what my speed would be given various variables such as power, gradient, weight? I haven’t tried a training programme ride yet. My understanding is that if I do Zwift will control the resistance to generate the programme power regardless of…

Sorry, David, I’ve just started a 3-hour ride :sweat_smile: so can’t help more right now. Suffice to say, if you have a Direto XR (which includes a power meter and controllable brake), you have everything you’ll need to have an optimum experience on Zwift. Ride On!

[image] David_Shaw2: What’s the Controlable? [image] https://support.zwift.com/en_us/pairing-your-devices-HJIFDrw5S [Pairing Your Smart Trainer — Official Instructions | Zwift]

[image] David_Shaw2: I haven’t tried a training programme ride yet. My understanding is that if I do Zwift will control the resistance to generate the programme power regardless of which gear I ride in in the bike. I believe from what I’ve read it’s best to select small chain ring and a larger c…

Ok, yes the controllable is connected. My question was about following a route not a programme

Routes how do speed & gradient work

General Discussion

Roule_Thoune (Roule) October 27, 2021, 3:08pm 2

Hi @David_Shaw2 and welcome to the Forums.
Check out this thread: How Does Zwift Determine My Speed?

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Routes how do speed & gradient work

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