What do Wheels Weigh?

Discussion in 'Norton Commando Classic Motorcycles' started by lcrken, Sep 28, 2016.

  1. Rohan

    Rohan

    Joined:
    Aug 26, 2010
    Is that bad though ?
    If you had wheels that weighed nothing, there is nothing in the gyro dept to keep you upright. (!)
    Not that this is ever going to be reality, but there must be a threshold for this ?
     
  2. worntorn

    worntorn

    Joined:
    Dec 22, 2006
    +1 schrapnel

    This is the explanation given by light weight wheel companies. Two gyros equal in weight and dimensions , one has it's mass concentrated at the centre (good), the other has it's mass concentrated at the perimeter ( bad)

    Glen
     
  3. Rohan

    Rohan

    Joined:
    Aug 26, 2010
    And yet all these cruisers have gianormously wide rubber,
    and seem to cruise all the better for it...

    [​IMG]
     
  4. worntorn

    worntorn

    Joined:
    Dec 22, 2006
    Exactly, big heavy gyro great for going in a straight line on the Prairies, not so good at going around the IOM or thru the Rockies :D
    Glen
     
  5. Rohan

    Rohan

    Joined:
    Aug 26, 2010
    My (ahem) jap sports bike had fairly wide tires.
    MotoGP stuff isn't exactly skinny either these days.

    Would they be more speedy/nimble if tires went back to being rather narrow/scrawny ?
    Although we well take the point about being light...
     
  6. worntorn

    worntorn

    Joined:
    Dec 22, 2006
    That's true, modern sportbike tires are wide but that is mainly to get power to ground. The high end tires are also as light as a feather.
    My 160/70/70 Pirelli for the Thrux is 10 lbs 7 ounce vs 13 lbs 4 ounce for the relatively skinny 4.00x 18 Avon Roadrider for the Vincent rear. The Avon feels like it's made of lead by comparison, so skinny, yet so heavy. Then there's the tube to add to the Skinny tire, the other is tubeless, so the difference is even greater.

    The moderns are definitely into light for wheels and tires.

    Glen
     
  7. lcrken

    lcrken VIP MEMBER

    Joined:
    Mar 15, 2009
    A little more info on the MKIII rear wheel.

    Rear sprocket with stub axle weighs 5 lbs. 5.2 oz.
    Steel cush drive plate weighs 6.4 oz.

    Combining that with the weights I posted previously on MKIII rear wheel,

    Total weight of wheel with disk and sprocket is 26 lbs. 10 oz.

    It's not quite right to compare that to other complete rear wheel weights because it includes the stub axle. I'll see I can find one of those to measure later.

    Ken
     
  8. lcrken

    lcrken VIP MEMBER

    Joined:
    Mar 15, 2009
    So, I've summarized the info in this thread so far, and put it into some arbitrary categories. Couldn't figure out how to add formatting features here to make it more readable, so it's just straight text. I'm going to add some more component weights later (disks and calilpers, mostly). I'd eventually like to be able to make a list of all-up wheel, brake, sprocket, and tire combos for apple-to-apple comparisons. Sorry about the lbs/oz/kg/g data. I just listed them the way they are in the thread. I'll convert it all later. I'll update the summary periodically, as the thread gets more info.

    Ken

    WHEEL WEIGHT SUMMARY

    Wheels that have been or can be fit to Commandos, some easy, some requiring major mods.
    All wheels include bearings unless noted otherwise..

    Front Wheels – Bare Wheel with Bearings

    MKIII Commando 1.85x19 wheel – 12 lbs 7.2 oz.
    Morris 2.15x19 aluminum wheel – 11 lbs. 14 oz.
    Morris 2.15x19 aluminum wheel 5 bolt – 12 lbs. 12 oz.
    Harley 2.15x19 aluminum front wheel -15 lbs. 14.2 oz.
    EPM 2.15x18 front mag wheel – 8 lbs. 5.4 oz.
    Yamaha TZ250 Asahi 3.5x17 aluminum front wheel – 8 lbs. 4.4 oz.
    BST Flat Track 19" carbon fiber wheels – 6.25 – 6.875 lbs. With bearings and spacers.
    1971 Norton front hub with SS spokes and non shouldered Excel 18" rim – 10 lbs. 9 oz.


    Front Wheels – With Disk

    JS Commando front hub with stainless spokes and Sun 2.75-17 rim, with large drilled disc – 16lbs. 7.4 oz.


    Front Wheels – With Disk and Tire

    Norvil hub and 11" disk (lightened) with Buchanon stainless spokes and non-shuldered Akront WM -19 alloy rim, Avon 110/80-18 AM22 with tube, and titanium fasteners – 24 lbs. 11.6 oz.
    Norvil hub with Borranni WM3x18 alloy rim, dual 11.5" Norvil disks (drilled), and 110/80/18 Dunlop KR145A race tire – 30 lbs. per Holmeslice
    Same Norvil hub/Borrani rim with single disk and 80/80/18 KR825 race tire – 21.3 lbs. per Holmeslice

    Rear Wheels – Bare Wheel with Bearings

    MKIII Commando 1.85x19 rear wheel w/o disk or sprocket, with cush rubber – 15 lbs. 10 oz.
    Morris 2.50x18 aluminum rear wheel 6 bolt – 15 lbs. 4.6 oz.
    EPM 3.0x18 rear mag wheel – 10 lbs. 2.6 oz.
    Yamaha TZ250 Marvic 5.5x17 rear mag wheel – 8 lbs. 3.0 oz.
    Barnes QC rear with Akront shouldered 2.50x18 alloy rim, Buchanan ss spokes, with spacers and bearings, sprocket, and swiss cheese disk, Avon 130/70-VB18 AM23 – 27 lbs. 11.6 oz.

    Rear Wheels – With Disk, Sprocket, and Tire

    JS Triumph rear hub with 1 3/4" spacer, strainless HD spokes, Sun 3.50-18 rim, with bearings and spacers – 13 lbs. 2.0 oz.

    Parts

    Stock Commando brake rotor – 5 lbs 4.4 oz.
    Heavy duty tube 3.00 – 3.25-19 – 1 lb. 8.4 oz.
    Heavy duty tube 4.10-19 – 1lb. 13.8 oz.
    Dunlop K81 4.10-19 – 11 lbs. 7.0 oz.
    Bare Excel flanged WM3x19 front rim – 2.19 kg.
    Bare chromed steel WM2x19 front rim – 2.53 kg.
    Dunlop K591 110/90-18 – 12.8 lbs. per L.E.N.
    Avon Roadrunner 4.00-18 – 13 lbs. 1 oz. per worntorn
    JS turned down and drilled Commando rear disc – 2 lb. 5.0 oz.
    MKIII Commando cush drive plate – 6.4 oz.
    MKIII Commando sprocket with stub axle – 5 lb. 5.2 oz.
    Morad flanged 2.5x19 alloy rim – 2.2 kg. per worntorn
    Excell flanged WM3x19 alloy rim – 2.18 kg. per APRSV
    Stock steel WM2x19 rim – 2.53 kg. per APRSV
    Dunlop WM2x19 steel rim – 2552 g. per gortnipper
    Jones WM2x19 steel rim – 2662 g. per gortnipper
    Stock front spoke set, including nipples – 1002 g. per gortnipper.
    Stock rear spoke set, including nippels – 625 g. per gortnipper.
    Bare front hub (disk brake?)– 1501 g. per gortnipper.
    Bare rear hub (drum brake?) - 2912 g. per gortnipper.

    Other

    MKIII Commando 1.85x19 rear wheel with disk but w/o sprocket – 20 lbs. 14.4 oz.
    JS rear wheel with disc and slick – 29 lbs. 15.6 oz.
    Ronal cast alloy wheels, 1.85x19 front, 2.15x18 rear, with stock disks – 19 kg. per nortonspeed
     
  9. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Yes to your two questions.
     
  10. Danno

    Danno

    Joined:
    Feb 7, 2010
    I test rode a Ducati Diavel (best-handling power cruiser?) and although it's 50 lbs lighter than my ZX-14, it felt 50 lbs heavier, especially during parking-lot maneuvers, where it felt like a three-wheeled log truck steered with a tiller. The rear tire always tries to steer the front. If that's cruising, I'll pass.
     
  11. lcrken

    lcrken VIP MEMBER

    Joined:
    Mar 15, 2009
    This is an update with metric weights converted to lbs. and oz., and a little text enhancing for readability

    WHEEL WEIGHT SUMMARY

    Wheels that have been or can be fit to Commandos, some easy, some requiring major mods.
    All wheels include bearings unless noted otherwise..

    Front Wheels – Bare Wheel with Bearings

    MKIII Commando 1.85x19 wheel – 12 lbs 7.2 oz.
    Morris 2.15x19 aluminum wheel – 11 lbs. 14 oz.
    Morris 2.15x19 aluminum wheel 5 bolt – 12 lbs. 12 oz.
    Harley 2.15x19 aluminum front wheel -15 lbs. 14.2 oz.
    EPM 2.15x18 front mag wheel – 8 lbs. 5.4 oz.
    Yamaha TZ250 Asahi 3.5x17 aluminum front wheel – 8 lbs. 4.4 oz.
    BST Flat Track 19" carbon fiber wheels – 6.25 – 6.875 lbs. With bearings and spacers.
    1971 Norton front hub with SS spokes and non shouldered Excel 18" rim – 10 lbs. 9 oz.

    Front Wheels – With Disk

    JS Commando front hub with stainless spokes and Sun 2.75-17 rim, with large drilled disc – 16lbs. 7.4 oz.

    Front Wheels – With Disk and Tire

    Norvil hub and 11" disk (lightened) with Buchanon stainless spokes and non-shuldered Akront WM -19 alloy rim, Avon 110/80-18 AM22 with tube, and titanium fasteners – 24 lbs. 11.6 oz.
    Norvil hub with Borranni WM3x18 alloy rim, dual 11.5" Norvil disks (drilled), and 110/80/18 Dunlop KR145A race tire – 30 lbs. per Holmeslice
    Same Norvil hub/Borrani rim with single disk and 80/80/18 KR825 race tire – 21.3 lbs. per Holmeslice

    Rear Wheels – Bare Wheel with Bearings

    MKIII Commando 1.85x19 rear wheel w/o disk or sprocket, with cush rubber – 15 lbs. 10 oz.
    Morris 2.50x18 aluminum rear wheel 6 bolt – 15 lbs. 4.6 oz.
    EPM 3.0x18 rear mag wheel – 10 lbs. 2.6 oz.
    Yamaha TZ250 Marvic 5.5x17 rear mag wheel – 8 lbs. 3.0 oz.
    Barnes QC rear with Akront shouldered 2.50x18 alloy rim, Buchanan ss spokes, with spacers and bearings, sprocket, and swiss cheese disk, Avon 130/70-VB18 AM23 – 27 lbs. 11.6 oz.

    Rear Wheels – With Disk, Sprocket, and Tire

    JS Triumph rear hub with 1 3/4" spacer, strainless HD spokes, Sun 3.50-18 rim, with bearings and spacers – 13 lbs. 2.0 oz.

    Parts

    Stock Commando brake rotor – 5 lbs 4.4 oz.
    Heavy duty tube 3.00 – 3.25-19 – 1 lb. 8.4 oz.
    Heavy duty tube 4.10-19 – 1lb. 13.8 oz.
    Dunlop K81 4.10-19 – 11 lbs. 7.0 oz.
    Dunlop K591 110/90-18 – 12.8 lbs. per L.E.N.
    Avon Roadrunner 4.00-18 – 13 lbs. 1 oz. per worntorn
    JS turned down and drilled Commando rear disc – 2 lb. 5.0 oz.
    MKIII Commando cush drive plate – 6.4 oz.
    MKIII Commando sprocket with stub axle – 5 lb. 5.2 oz.
    Morad flanged 2.5x19 alloy rim – 2.2 kg. (4 lbs. 13.2 oz.) per worntorn
    Excell flanged WM3x19 alloy rim – 2.18 kg. (4 lbs. 12.9 oz.) per APRSV
    Stock steel WM2x19 rim – 2.53 kg. (5 lbs. 5.2 oz.) per APRSV
    Dunlop WM2x19 steel rim – 2552 g. (5 lbs. 10.0 oz.) per gortnipper
    Jones WM2x19 steel rim – 2662 g. (5 lbs. 13.9 oz.) per gortnipper
    Stock front spoke set, including nipples – 1002 g. (2 lbs. 3.2 oz.) per gortnipper.
    Stock rear spoke set, including nippels – 625 g. (1 lb. 6.0 oz.) per gortnipper.
    Bare front hub (disk brake?)– 1501 g. (3 lbs. 4.9 oz.) per gortnipper.
    Bare rear hub (drum brake?) - 2912 g. (6 lbs. 6.7 oz.) per gortnipper.

    Other

    MKIII Commando 1.85x19 rear wheel with disk but w/o sprocket – 20 lbs. 14.4 oz.
    JS rear wheel with disc and slick – 29 lbs. 15.6 oz.
    Ronal cast alloy wheels, 1.85x19 front, 2.15x18 rear, with stock disks – 19 kg. (41 lbs. 14.2 oz.) per nortonspeed
     
  12. worntorn

    worntorn

    Joined:
    Dec 22, 2006
    Thanks for putting this altogether Ken, it's a very useful thing for us Norton "Superleggera" fans.

    Glen
     

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