Is there much / any value in a very basic roll-down test to check the advantage between wheels, helmets, positions etc.
Thinking I would fit a freewheel, ride at 20mph then time how long it takes to roll down to 5mph on the same stretch of road. That'll give me some idea as long as it's a still day won't it?
You would want to do the tests all on the same day within as tight a time period as possible and when wind is lowest (as pressure, temp etc all play a big part). You will need to disregard any tests when you are passed by a car (in either direction)
Is there much / any value in a very basic roll-down test to check the advantage between wheels, helmets, positions etc.
Thinking I would fit a freewheel, ride at 20mph then time how long it takes to roll down to 5mph on the same stretch of road. That'll give me some idea as long as it's a still day won't it?