Author Topic: GVWR explained  (Read 663 times)

Richard230

  • Brammovangelist
  • *****
  • Posts: 2519
    • View Profile
GVWR explained
« on: March 01, 2014, 11:21:20 AM »
Here is a link to an interesting and informative article by David Hough published by Sound Rider, explaining motorcycle gross vehicle weight restriction:

http://www.soundrider.com/current/1403/motorcycle-gross-vehicle-weight.aspx
current bikes: 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2007 BMW R1200R, 2005 Triumph T-100 Bonneville, 2002 Yamaha FZ1 and a 1978 Honda Kick 'N Go Senior.

Shinysideup

  • Brammovangelist
  • *****
  • Posts: 1423
    • View Profile
Re: GVWR explained
« Reply #1 on: March 01, 2014, 02:14:22 PM »
2013 Empulse R GVWR is 782 lbs.

Richard230

  • Brammovangelist
  • *****
  • Posts: 2519
    • View Profile
Re: GVWR explained
« Reply #2 on: March 01, 2014, 04:40:02 PM »
The carrying capacity of my 2014 Zero S is about 320 pounds.  The more batteries that you add, the less weight you can carry without overloading the Road Whiner tires and the Fast Ace suspension.  Fortunately, I don't carry passengers - just random stuff.
current bikes: 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2007 BMW R1200R, 2005 Triumph T-100 Bonneville, 2002 Yamaha FZ1 and a 1978 Honda Kick 'N Go Senior.

oml

  • Empulse Guru
  • ****
  • Posts: 102
    • View Profile
Re: GVWR explained
« Reply #3 on: March 01, 2014, 05:10:27 PM »
Lucklily this problems doesnt exist here, every vehicle has a precise leaflet with all the technical details with must be with the vehicle at all times (I assume in order to make the excuse "I didnt know I was overloading" invalid).
Therefore I know that my Honda CBF 600 has a 197kg (~435 lb) carrying capacity, about the same for the KTM Duke 390 I currently fancy.
While obviously higher than the capacity of the Zero or the Brammo it is still not a lot, I e.g. weight about 115kg with boots, helmet etc, which gives only 82kg for a fully protected passenger - not an awful lot, it keeps most of my male friends away and sometimes serves as a excuse to avoid carrying someone ;) . Keep in mind this is an explicit touring vehicle!
One wonders why the limit is so low. Is it the frame? The tires (which would explain the low general level on all known bikes)? The suspension (maybe fixable/modable)? The very conservative estimation by the manufacturer in order to avoid any problems and/or legal responsibility?

I would like to hear from Brian how they got their numbers for the GVWR of the Empulse. Is it a conservative educated guess? Were you limited by some bought subcomponent? I cant possibly imagine one would design a frame with such low carrying capacity in mind.