I want to get power meters for my mountain bike and my wife’s gravel bike. I took them both to a bike shop and after looking at them and doing some research, the mechanic concluded the cheapest option would be power meter pedals. Not stoked on the price of those, and I don’t think putting power meter pedals on my mountain bike is a good idea given how much I pedal strike (its possible on my wife’s gravel bike). Is there another solution that the bike shop didn’t recommend? I just don’t understand BB, crank, and chain ring standards so I find this space extremely confusing. Do I need to swap out the whole crankset if I want to go with a stages or similar technology?
My bike is a 2019 Specialized Epic Evo Expert with a Truvativ STYLO crankset. SRAM DUB threaded BB.
My wife’s gravel bike is a Cannondale Topstone Carbon 105. Cannondale Allot PressFit30 BB, Cannondale 1 Crank with FSA rings.
Thank you for any help you can offer!