1. Attachments are working again! Check out this thread for more details and to report any other bugs.

The weight of Prius 16" alloy wheel

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Lim, Sep 10, 2007.

  1. Lim

    Lim Junior Member

    Joined:
    Jul 27, 2007
    10
    0
    0
    Location:
    Hong Kong
    Vehicle:
    2007 Prius
    Does anyone know the weight of Prius 16" alloy wheel? Thanks.
     
  2. treehggr

    treehggr New Member

    Joined:
    May 3, 2007
    230
    0
    0
    Vehicle:
    2007 Prius
    <div class='quotetop'>QUOTE(Lim @ Sep 10 2007, 03:57 PM) [snapback]510300[/snapback]</div>
    I think the 15's are right around 14lbs so my guess would be about 15-16lbs? As for exact I have no idea. Although I could be completely off. :unsure:
     
  3. Lim

    Lim Junior Member

    Joined:
    Jul 27, 2007
    10
    0
    0
    Location:
    Hong Kong
    Vehicle:
    2007 Prius
    <div class='quotetop'>QUOTE(treehggr @ Sep 12 2007, 05:04 AM) [snapback]510801[/snapback]</div>
    I have changed the wheel to Enkei RS+M size 16x7 and the actual weight is 14.55 lbs. I picked up the two wheels by hand in wheel shop and found Enkei is little bit lighter than the stock alloy wheel. So 15-16 lbs is reasonable.
     
  4. cairo94507

    cairo94507 Active Member

    Joined:
    Dec 24, 2004
    923
    36
    0
    Location:
    Auburn, CA, USA
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    I don't know what the heck that said. So what is the weight of the 16" wheel? Unless you hand is a scale, I would be skeptical.
     
  5. cairo94507

    cairo94507 Active Member

    Joined:
    Dec 24, 2004
    923
    36
    0
    Location:
    Auburn, CA, USA
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    I don't know what the heck that said. So what is the weight of the 16" wheel? Unless you hand is a scale, I would be skeptical.
     
  6. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    44,768
    16,017
    41
    Location:
    Canada
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    15s are 6.5kgs so ya about 14lbs.
     
  7. a priori

    a priori Canonus Curiosus

    Joined:
    Aug 14, 2007
    3,083
    407
    23
    Location:
    Chicagoland (West)
    Vehicle:
    2010 Prius
    Model:
    V
    I'm not an engineer (disclaimer!). I suppose the weight of the wheels is important, but wouldn't the weight distribution be valuable information as well? Not being a physicist either (more disclaimer!), I thought the angular momentum would be important for stability and for inertia. Of course, wouldn't this also affect the energy required to start and stop the car?

    OK. Does any of this mean anything in terms of control of the car, general safety and/or mileage?
     
  8. mkiefer83

    mkiefer83 Junior Member

    Joined:
    Apr 15, 2007
    45
    8
    0
    Location:
    Ypsilanti, MI
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    I am an engineer who used to work at an automotive tier 1 braking supplier, so hopefully this will make sense (even though, I'm electrical and I'm about to spout off mechanical knowledge)...

    From a fuel economy standpoint, you want a lighter wheel. You want a light wheel because the less the wheel weighs, the less the electric motor and ICE will have to work to get the wheel rolling (lower rolling inertia).

    Lower weight wheels not only will improve but they'll also improve braking from the same standpoint. Your brakes won't have to work as hard to get the mass of the wheel to slow down. I'm not sure about what kind of effect this would have on regenerative braking, but it could mean less wear and tear on your actual brakes. For instance, if you see some guy rolling 24" rims on a big SUV with the tiny stock brakes still on the car... not so smart from a safety standpoint
     
  9. blamy

    blamy Member

    Joined:
    Sep 18, 2007
    380
    10
    0
    Location:
    Central Florida
    Vehicle:
    2007 Prius
    More unsprung weight; Bad
    Less unsprung weight; Good
     
  10. David Beale

    David Beale Senior Member

    Joined:
    Jul 24, 2006
    5,963
    1,979
    0
    Location:
    Edmonton Alberta
    Vehicle:
    2012 Prius
    From USBSea:

    CE28 ECO DRIVE (Volk Racing Wheels made for Prius)
    15 inch: 4.6kg (10.1 lbs)
    16 inch: 4.9kg (10.8 lbs)

    Toyota OEM Rim
    15 inch 6.5kg (14.3 lbs)
    16 inch 6.9kg (15.2 lbs)
     
    Tideland Prius likes this.
  11. CalvinL

    CalvinL 2013 Prius Persona Black Cherry Pearl

    Joined:
    Oct 4, 2006
    79
    10
    16
    Location:
    Long Island, New York
    Vehicle:
    2013 Prius
    Model:
    N/A
    I will only add that if you want more information on wheel weight versus fuel effeciency to read up a little on "Rotational Mass".

    Do not forget that some wheel designs are not meant for the street especially wheels/rims designed for certain types of racing where it doesn't require a lot of lateral force (sideways).

    -Calvin