Originally Posted by
Metallifan33
I will throw my 2 cents in here. I was convinced to buy the MTB SPD pedals and was happy with them till I realized I wanted a pedal mounted power meter. There aren't any for MTB style shoes/cleats.
This was basically my story too. I watched the power meter market for a while before I bought one, hoping somebody would make a SPD version. That was 5+ years ago and it still hasn't happened.
SPD works fine on a road bike as long as you use good shoes.
There's a conversation kit to turn one of the road pedals into SPDs. @
FlashBazbo has the details.