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What Bike Rack has less drag: Roof Rack or Hitch Rack

Zorg

Active Member
Oct 24, 2017
1,530
1,332
Fremont, ca
I use a hitch rack (1-UP) to carry my mountain bike on the X. My ballpark estimate is that it costs me about 10-15% consumption. I'm guessing that the penalty is less since the X is so big that most of the bike is sheltered by the car body. I would expect the parachute effect to be greater on a smaller car.
 

Zorg

Active Member
Oct 24, 2017
1,530
1,332
Fremont, ca
Well I drove the X today to pick up a bike. At similar speed, the difference in consumption was around 50-70Wh per mile (325 vs 375-395). Mountain ebike on a hitch rack.
 
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