Swapped out tires last night for some winter tires. I perhaps could have waited a bit longer as we don't have consistent overnight freezing yet --maybe next week -- but I had to break these in anyway (20-25 mi of easy riding on pavement to bed the studs). These are schwalbe marathon winter 700x40 shown next to the Dash's stock 700x45 CST's. The schwalbe's are around 935g ( a bit lighter than advertised), and my two CSTs were different but the heavier rear was 910g.
Rolling resistance isn't bad: when inflated their max pressure, they ride primarily on the center tread strip. Later for max traction you can lower the pressure as needed (min 30PSI, max 70PSI). I didn't push it speed wise yet, but I am estimating these will take 2, maybe 3mph off my speed (about what I would expect for any knobby compared to a road tread) These are quieter than other studded tires I've had in the past, but they still sound like a bowl of rice krispies.
Rolling resistance isn't bad: when inflated their max pressure, they ride primarily on the center tread strip. Later for max traction you can lower the pressure as needed (min 30PSI, max 70PSI). I didn't push it speed wise yet, but I am estimating these will take 2, maybe 3mph off my speed (about what I would expect for any knobby compared to a road tread) These are quieter than other studded tires I've had in the past, but they still sound like a bowl of rice krispies.