MONO/PARA weights

[Phreaky Phil]

Does anyone have any weight figures of a monolever swingarm and final drive and a paralever swingarm and final drive.
Which one is lighter ?

[robtg]

Originally Posted by Phreaky Phil

Does anyone have any weight figures of a monolever swingarm and final drive and a paralever swingarm and final drive.
Which one is lighter ?

Kinda like a 450# marathon runner picking out the lightest running shoes. Does it matter?

[Phreaky Phil]

Originally Posted by robtg

Kinda like a 450# marathon runner picking out the lightest running shoes. Does it matter?

Yep

[robtg]

Originally Posted by Phreaky Phil

Yep

Know where your coming from, I also trim the ounces looking for pounds.

[supershaft]

I have always wondered the same thing. I am going to be very surprised if the Paralever is lighter. It's definitely a lot longer. Something I don't care for on the road bikes for the longer wheel base reducing cornering clearance. They do have a much larger swing radius which is good. They are like a twin wish bone setup on a car only different as far as the swing radius goes.

Those ounces do add up into pounds! I sure wish I could afford some lighter wheels for my Mono! IMO, the wheels are THE place to start but man do we have very limited options on that front! As far as mags go that is. I am tempted to go the cross spoke route but man it's some money!

[Phreaky Phil]

Sometimes it's more than ounces. For example GS front wheel is 4.5 kg heavier than my DRZ 400 front wheel.

[Prutser]

R80 G/S Final drive 7,6 KG Swing arm with drive shaft 5 KG Wheel (no tire) 6,1
R100GS Final drive 8,5 KG Swing arm with drive shaft 3,9KG Wheel no tire 6,6
R1100GS Final drive 8,9KG Swing arm with drive shaft 6,1KG Wheel no tire 6,6 (no disc)

Just some rough measurements.

[Phreaky Phil]

Originally Posted by Prutser

R80 G/S Final drive 7,6 KG Swing arm with drive shaft 5 KG Wheel (no tire) 6,1
R100GS Final drive 8,5 KG Swing arm with drive shaft 3,9KG Wheel no tire 6,6
R1100GS Final drive 8,9KG Swing arm with drive shaft 6,1KG Wheel no tire 6,6 (no disc)

Just some rough measurements.

Thanks for this, exactly what I was looking for.
So the G/S Mono =18.7
GS Para = 19
1100 GS Para =21.6 plus disc/caliper etc

I did some measurements when I added the disc to mine and knew I added a couple of kgs.
An extended mono would back to the same weight as the paralever but capable of more travel and stronger.

[supershaft]

Well, the Para is some ounces lighter. Where the weight is at might be more important in this case?

@PP: BMW and some of their heavy wheels!!!!! The old K bike/Mono wheels weight a ton! NOT the place to be adding ounces let alone pounds!

[Airhead Wrangler]

I have different numbers for this:

Rear End Comparison:

I also got curious about the conversion to the R1100GS rear end and wondered what it would weigh compared to a monolever rear end:

R1100GS
final drive 16.7
paralever rod 1.3
swingarm 7.8
drive shaft 5.2
rear wheel 14.7
disc 2.0
caliper 1.8
shock 10.0

59.5 lbs total


R100GS or GSPD
rear wheel 14.2
swingarm w/ all bearings, pins, lower boot 6.2
tie rod 1.0
driveshaft 4.4
final drive 17.8
brake shoes, cam, lever 1.9
shock 8.4

53.9 total



R80ST
swingarm w/ bearings and pivot pins 7.3 lbs
driveshaft 3.9
final drive 16.2
rear wheel 13.0
brake pads, cam, lever 1.4
shock 6.3

48.1 total




HP2 just for curiosity's sake
final drive 17.4
swingarm 9.6
paralever tie rod .9
rear wheel 11.3
driveshaft 4.8
rear disc 2.1
rear caliper 2.1
shock 4.9 (I find that very hard to believe)

53.1 lbs total

[elmontanero]

This is good information - does using these different Swings/FD provide better/longer/higher rear ends?
Seems like swapping front ends gives Airheads always comes with the need to sort out the rear, is there a preferred Oilhead Swing Arm/ Final Drive that gives you the best rear suspension for the effort?(besides weight/disc brake) I've seen the HPN:
HPN-Sport: The "light" HPN for the sports rider.With the reinforced BMW GS frame, the BMW R1100GS swingarm and the best accessories parts from Brembo, Marzocchi, WP Suspension, Acerbis and HPN we created a motorcycle with superb handling on- and offroad
Among the info: Teleskopic front fork: Marzocchi Magnum, ø50mm, 285 mm travel. Shock absorber: Special built WP Suspension with adjustable compression and rebound damper settings and hydraulic adjustable spring preload
Swing arm: BMW R1100GS Series

Originally Posted by Airhead Wrangler

I have different numbers for this:

Rear End Comparison:

I also got curious about the conversion to the R1100GS rear end and wondered what it would weigh compared to a monolever rear end:

R1100GS
final drive 16.7
paralever rod 1.3
swingarm 7.8
drive shaft 5.2
rear wheel 14.7
disc 2.0
caliper 1.8
shock 10.0

59.5 lbs total


R100GS or GSPD
rear wheel 14.2
swingarm w/ all bearings, pins, lower boot 6.2
tie rod 1.0
driveshaft 4.4
final drive 17.8
brake shoes, cam, lever 1.9
shock 8.4

53.9 total



R80ST
swingarm w/ bearings and pivot pins 7.3 lbs
driveshaft 3.9
final drive 16.2
rear wheel 13.0
brake pads, cam, lever 1.4
shock 6.3

48.1 total




HP2 just for curiosity's sake
final drive 17.4
swingarm 9.6
paralever tie rod .9
rear wheel 11.3
driveshaft 4.8
rear disc 2.1
rear caliper 2.1
shock 4.9 (I find that very hard to believe)

53.1 lbs total

[Padmei]

Hmmmmm Phils swapping out his swingarm... is there a queue for it yet?

[Phreaky Phil]

Originally Posted by Padmei

Hmmmmm Phils swapping out his swingarm... is there a queue for it yet?

Phils just planning at the moment. Having said that I have purchased 2 monolever swingarms off trademe. Just because they were there

[supershaft]

Of course I don't know for sure but I suspect the weight of the FD is what matters most.

[Airhead Wrangler]

Originally Posted by supershaft

Of course I don't know for sure but I suspect the weight of the FD is what matters most.

...and the wheel