Just under a 3% (2.95%) drag reduction for this client at race pace. For him, that equaled a 6.2 watt savings.
A few notes:
- The wind conditions made for a very low yaw environment at 2-2.5 degrees. I suspect we'd see a little more improvement somewhere between 4-7 degrees.
- Revolver claims "up to" 23 watts of drag savings, but give no other relevant information on what those watts are based on. Looking at their Instagram post, one of their test athletes had the bottles right up against his biceps with a fairly short reach. I'm guessing he's the one who saw the bigger savings and it was at high yaw. I could be wrong, of course, but that's my guess.
- Our athlete reported no issues with vision. Getting out of the position and to his brake levers wasn't difficult, but a slightly different movement than usual. He noted when he had his head tucked, his helmet would touch the bottles and that would likely get annoying after awhile.
Jim Manton / ERO Sports