Apologize if this is covered elsewhere…set to start a 6 week MTB SST plan and doing the Field Test tomorrow to establish my zones. I don’t have a power meter on my mtb bike and ultimately, I am training for a mtb race so should I do the field test on the mtb, without a power meter and just use the HRM data for the 6 week plan? I could do on my road bike with a PM but seems like it might be a bit different. Would try to find a somewhat flat, semi paved route for the mtb test.
thanks in advance,