XPLOR IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650?

	IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650?
Ddog Joined: Apr 09, 2008 Location: TALLEVAST, FL	What I've seen is the sum of weights is 100 lbs less on G650X and engine config is only 4.4 lbs less(!?!?!). So I'd assume cast AL swingarm, modular frame, and accessories (like centerstand, rack, tach, ...). Would any guru here have any applicable figures to better understand how the wonder bike G650 X cut 100 lbs? Thanks Greatly!! Posted on 04/13/2008 at 16:36
Ddog Joined: Apr 09, 2008 Location: TALLEVAST, FL	Re: IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650 The F650, as well as the G650, would be a goodHybrid platform, but needs to lose a few pounds like the G650 did.I'd really like to figure out where all of those 100 lbs were lostat. My best guess est of the weight lost between the F650 toG650 would be: Engine - (advertised) 4.4 lbs Cast Alswingarm - 8 lbs Frame modules & reduced cradle size (higherground clearance) - 20 lbs No tack housing - 5 lbs No rack -5 lbs No center stand - 8 lbs Seat - 3 lbs Fairing(Funduro) - 10 lbs So I've guesstimated where 63.4 lbsout of the Net 100 lbs difference between the F650 and G650 X isat. Posted on 04/28/2008 at 18:45
Kutch Joined: Nov 20, 2006 Location:	Re: IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650 I think you may be low on the frame guess, way low. The F650 has /[had] quite a beefy frame for what it is. There was never an issue throwing some seriously heavy panniers on that bike. While with the G they have a kit that replaces the aluminum in the upper frame with steel IF you want to hang stuff off the side of the bike...What does that tell yah? Plus the G carries ~2 less gallons of fuel, thus the tank is smaller- almost cut in two. The dash is compleatly digital where the F had analog gauges for most things. The rear suspension is an air bag rather than a traditional steel sprung shock (XCh). That count you have on the rear swing arm assembly seems low as well. Steel has a density of ~0.27 lbs /in^3 while Aluminum is only ~0.09 lbs/in^3. Almost a 3:1 factor there...(dependent upon what type of metal actually used -but you get the picture). But I tell you this. After 3 years with the GS, I do not regret getting an XChallenge one bit. This bike is in the truest sense, much more of an enduro than the F650GS ever was. The XChallenge is an off road bike that has on road manners. Will still do 70 MPH slabbing it to work and with a sudden urge and flick of the bar, be 4 feet flying through the air. ...I just have to do something about the seat comfort for the slabbing part...Can you say Ouch...? --------------------------------- 07 XCh. Posted on 04/27/2008 at 17:53
Ddog Joined: Apr 09, 2008 Location: TALLEVAST, FL	Re: IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650 Kutch, GREAT analysis!! From the enduro and road racing results, the X-Challenge appeared to be the racer deluxe version. Your weight assignments seem more logical as well. And your brief assessment seems to highlight the model differences well. Thanks Again!! Posted on 04/28/2008 at 10:15

Ddog

Joined: Apr 09, 2008

Location: TALLEVAST, FL

What I've seen is the sum of weights is 100 lbs less on G650X and engine config is only 4.4 lbs less(!?!?!).

So I'd assume cast AL swingarm, modular frame, and accessories (like centerstand, rack, tach, ...).

Would any guru here have any applicable figures to better understand how the wonder bike G650 X cut 100 lbs?

Thanks Greatly!!

Posted on 04/13/2008 at 16:36

Ddog

Joined: Apr 09, 2008

Location: TALLEVAST, FL

Re: IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650

The F650, as well as the G650, would be a goodHybrid platform, but needs to lose a few pounds like the G650 did.I'd really like to figure out where all of those 100 lbs were lostat.

My best guess est of the weight lost between the F650 toG650 would be:

Engine - (advertised) 4.4 lbs
Cast Alswingarm - 8 lbs
Frame modules & reduced cradle size (higherground clearance) - 20 lbs
No tack housing - 5 lbs
No rack -5 lbs
No center stand - 8 lbs
Seat - 3 lbs
Fairing(Funduro) - 10 lbs

So I've guesstimated where 63.4 lbsout of the Net 100 lbs difference between the F650 and G650 X isat.

Posted on 04/28/2008 at 18:45

Kutch

Joined: Nov 20, 2006

Location:

Re: IS THERE DELTA WEIGHTS OF COMPONENTS BETWEEN F650 & G650

I think you may be low on the frame guess, way low. The F650 has /[had] quite a beefy frame for what it is. There was never an issue throwing some seriously heavy panniers on that bike. While with the G they have a kit that replaces the aluminum in the upper frame with steel IF you want to hang stuff off the side of the bike...What does that tell yah?

Plus the G carries ~2 less gallons of fuel, thus the tank is smaller- almost cut in two.

The dash is compleatly digital where the F had analog gauges for most things.

The rear suspension is an air bag rather than a traditional steel sprung shock (XCh).

That count you have on the rear swing arm assembly seems low as well. Steel has a density of ~0.27 lbs /in^3 while Aluminum is only ~0.09 lbs/in^3. Almost a 3:1 factor there...(dependent upon what type of metal actually used -but you get the picture).

But I tell you this.

After 3 years with the GS, I do not regret getting an XChallenge one bit. This bike is in the truest sense, much more of an enduro than the F650GS ever was. The XChallenge is an off road bike that has on road manners. Will still do 70 MPH slabbing it to work and with a sudden urge and flick of the bar, be 4 feet flying through the air.

...I just have to do something about the seat comfort for the slabbing part...Can you say Ouch...? crying