Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - MPG penalty / aero drag of bike rack on the back of a Miata/MX5: 10%+

MetroMPG · 11-05-2021, 11:14 PM

Carrying this bike on the back of the car reduced MPG by over 10% on a 40 km highway round trip that I do often:

I can actually fit the bike INSIDE the car by taking the passenger seat out and the front wheel off (the bike's front wheel, obviously). Then there's zero MPG hit.

And yes, the bike is almost as old as the car.

11-05-2021, 11:14 PM	#1 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,527 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Even Fancier Metro - '14 Mitsubishi Mirage top spec 90 day: 70.75 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 62.14 mpg (US) Thanks: 4,078 Thanked 6,976 Times in 3,612 Posts	MPG penalty / aero drag of bike rack on the back of a Miata/MX5: 10%+ Carrying this bike on the back of the car reduced MPG by over 10% on a 40 km highway round trip that I do often: I can actually fit the bike INSIDE the car by taking the passenger seat out and the front wheel off (the bike's front wheel, obviously). Then there's zero MPG hit. And yes, the bike is almost as old as the car. Attached Thumbnails __________________ Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata Honda mods: Ecomodding my $800 Honda Fit 5-speed beater Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage. Ecodriving test: Manual vs. automatic transmission MPG showdown EcoModder has launched a forum for the efficient new Mitsubishi Mirage www.MetroMPG.com - fuel efficiency info for Geo Metro owners www.ForkenSwift.com - electric car conversion on a beer budget