5 Pound weight loss on the 9er..... hummmm - Wrist Twisters
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post #1 of 78 Old 10-13-2010, 07:32 PM Thread Starter
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5 Pound weight loss on the 9er..... hummmm

Flame away --- I realize its expensive..... (it DOES get my attention though)

Theres a Lithium battery system now that delievers more cranking power, with less weight. The stocker Yuasa weighs 7+, the Lithium weighs 1.5 pounds. (its built with Mil Spec lithium batteries, carbon fiber, and is stated to last up to 10 years) ...... A weight savings of 5.5 pounds.

Like the Koso gauge I just bought.....sounds to me like an item that could potentially be transferred from bike to bike down the road......may be a worthy long-term investment. (The Yuasas run $100, the FS Lithiums run around $240)

Now, if only someone still made light weight forged wheels for the 9er.




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post #2 of 78 Old 10-13-2010, 08:02 PM
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Your going to give your bike an eating disorder. You may want to use helium in the tires.

If that battery really lasts 10 years it may be worth it.

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post #3 of 78 Old 10-13-2010, 08:15 PM
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lithium batteries are not good for environments where they are constantly being charged / at 100% charge, and in heat, They have a LIMITED amount of charge cycles... 500ish and then you can pretty much kiss em good by (think of your laptop, battery life is fine then one day you realize shit alls i get is 30 min)

Also that battery is WAY overpriced.... i could build a lithium Ferrous (same chemistry as the battery in the OP) 4.6ah battery with just as many if not more cranking amps for probably 50 bucks.

hell.... i was right.... 2 of these wired in series will give you 4.5 ah, 100 grams less in weight 180amps for 10 secs or 135amps draw continuous.
HobbyKing Online R/C Hobby Store : Turnigy 4500mAh 2S2P 30C LiFePo4 Pack

Regardless, yes you could loose 5 lbs by going to a battery like this... but for street use its completly pointless, you VERY likely to end up dead without a battery... heat will kill these batteries quicker than you could imagine.

If you want to save 5 lbs, get after market exhausts, get rid of your charcoal canister, pair system etc.

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post #4 of 78 Old 10-13-2010, 08:17 PM Thread Starter
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If I were to weight the box of parts I have in the garage right now.... I can't imagine how much of a diet she's already been on.

2 biggest things so far have been dropping the OEM can's/Y-pipe, and dumping the stocker foot pegs for SATO's. I couldn't believe how heavy the foot pegs were.

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post #5 of 78 Old 10-13-2010, 08:30 PM
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Sounds interesting but why is it in an auction?

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post #6 of 78 Old 10-13-2010, 08:37 PM Thread Starter
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Everything is already long gone sir..... I'm now splitting hairs.

In all honesty though --- many racing teams are now using this brand of battery.... I have yet to hear anything bad about it.

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post #7 of 78 Old 10-13-2010, 08:38 PM
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I'm not gonna flame you for the expensive battery, for the right person the weight savings would probably be worth the cost.

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Originally Posted by arctic954 View Post
I couldn't believe how heavy the foot pegs were.
Hmm, I never would've guessed. (not doubting, just caught off guard I suppose) They sure don't look like much.
You know how there's a triangle-shaped indent on each of the rearsets between the rider & passenger pegs? I've often thought about taking a die grinder to my rearsets & cutting that section out completely - leaving the passenger pegs in tact but cutting out a bit of material for weight savings.
Probably would loose a bit of structural integrity though, but how bad could it really be right? Maybe if I find a cheap set of stock rearsets I'll buy 'em & give it a try someday.

I went from stock exhaust to CF Yoshi's, those stock cans really are heavy!




I need to lose some weight myself... can't shave it all off the bike

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post #8 of 78 Old 10-13-2010, 08:46 PM Thread Starter
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Originally Posted by Bigdaa View Post
Sounds interesting but why is it in an auction?
ah.....thats just a picture snap-shot of the Yuasa --- taken off of e-bay. I was looking for the published weight & cost of the Yuasa battery.

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post #9 of 78 Old 10-13-2010, 08:49 PM Thread Starter
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o.k.. here goes........ granted, this is not a scientific experiment with a super accurate measuring device --- the bathroom scale shall do! lol.

Ran out to my garage.....started weighing stuff I've pulled off my bike.

----- first of all, didn't get a picture. Stock Bars 2.4 pounds. (plus whatever the internal weights weighed)

Stock turn signals, grab bars, mirrors, pair crap....and OEM speedo... 7.7 pounds. (so.... 7 pounds minus the box?)



Stock foot pegs..... oddly enough, 7.7 pounds again. (weighed it several times to makes sure it wasn't an error)



Stock exhuast & y-pipe.... 20.1 pounds.




Start doing the math..... thats 37.9 pounds.

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post #10 of 78 Old 10-13-2010, 08:51 PM
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Quote:
Originally Posted by arctic954 View Post
If I were to weight the box of parts I have in the garage right now.... I can't imagine how much of a diet she's already been on.

2 biggest things so far have been dropping the OEM can's/Y-pipe, and dumping the stocker foot pegs for SATO's. I couldn't believe how heavy the foot pegs were.
Better than lighter wheels is lighter tires.
Look at the Michelin Pures in that regard ?

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post #11 of 78 Old 10-13-2010, 08:55 PM
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Quote:
Originally Posted by arctic954 View Post
If I were to weight the box of parts I have in the garage right now.... I can't imagine how much of a diet she's already been on.

2 biggest things so far have been dropping the OEM can's/Y-pipe, and dumping the stocker foot pegs for SATO's. I couldn't believe how heavy the foot pegs were.
Reading further on, it sounds as though your net weight reduction exceeds 20 # which is very significant.

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post #12 of 78 Old 10-13-2010, 08:58 PM
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A trick for more accurate readings is to weigh yourself first, then pick up the items you want to weigh and come up with the difference.

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post #13 of 78 Old 10-13-2010, 09:02 PM
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The bike is 485lbs with gas.
You've knocked off a solid 30lbs.

I'd say stop and enjoy.

Trying to knock off weight on this bike is suddenly going to get very expensive ( wheels, carbon fiber tank.)

You can't lop off the steel frame.

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post #14 of 78 Old 10-13-2010, 09:03 PM
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I think you're optimistic by 25-30lbs.

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post #15 of 78 Old 10-13-2010, 09:04 PM
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Or you have a lot of spare money...

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post #16 of 78 Old 10-13-2010, 09:05 PM Thread Starter
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....ha, ha..... you're sooooooo wise.

You do have to factor back in all the new stuff added...... SATO rearsets, my Arrow Titanium can, Renthal bars, the CRG bar ends.

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post #17 of 78 Old 10-13-2010, 09:08 PM
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Battery technology advanced greatly in the last 10-15 years.
I'm sure we'll get that 2lb battery that does what we all want in another few years.

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post #18 of 78 Old 10-13-2010, 09:49 PM
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Dump the clutch out cover - a fairly solid piece of alloy there, looks nice and probably is only there to quieten the clutch.

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post #19 of 78 Old 10-14-2010, 01:37 AM
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My Super Duke weighs 400 lbs. Sorry to piss on your parade. OK, maybe I'm not sorry.

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post #20 of 78 Old 10-14-2010, 05:00 AM
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Ive often wondered if anyone has tried to machine some weight off the stock wheels? and how much could safely be machined off?

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post #21 of 78 Old 10-14-2010, 05:34 AM Thread Starter
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There's another place to save some rotating weight......wheels.

I went with a renthal aluminum hard annodized rear sprocket and lighter weight EBC rotors up front. Didn't chance the 520 route, I'm way too hard on my chains.

Someone in another thread mentioned that an f4i front axle was lighter weight..... Anyone know for sure?

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post #22 of 78 Old 10-14-2010, 05:37 AM Thread Starter
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Quote:
Originally Posted by AllanB View Post
Dump the clutch out cover - a fairly solid piece of alloy there, looks nice and probably is only there to quieten the clutch.
Ya know.... Aluminum engine covers would add some crash protection and reduce weight in that respect.

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post #23 of 78 Old 10-14-2010, 06:27 AM
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I'm down with your effort, arctic bro. There have to be Pioneers you know. Without them, we would be all skrunched up out New Jersey way and wouldn't that be a bad case of STD's!!!!!


I went and put a standard slide grip on my 870 riot gun last night instead of that overgrown piece of shit it came with. Sure, I had to do a little modding to the grip, but it was worth it. Same deal. The stock stuff sucked balls. I adapted, improvised and overcame.

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post #24 of 78 Old 10-14-2010, 07:13 AM
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pork spending gone crazy, for what, buy a fucking 600 and be done with it for crying out loud





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post #25 of 78 Old 10-14-2010, 07:47 AM
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Quote:
Originally Posted by marylandmike View Post
Your going to give your bike an eating disorder. You may want to use helium in the tires.

If that battery really lasts 10 years it may be worth it.
My Yuasa battery in my 919 has a date of 2002 on it. I believe it to be the original batter for the bike. It's 8 years old now.

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My Super Duke weighs 400 lbs. Sorry to piss on your parade. OK, maybe I'm not sorry.
HAHAHA

Press Any Key To Continue.
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post #26 of 78 Old 10-14-2010, 08:07 AM
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Quote:
Originally Posted by cmurphy84 View Post
My Yuasa battery in my 919 has a date of 2002 on it. I believe it to be the original batter for the bike. It's 8 years old now. HAHAHA
I don't know if mine has a date on it but I know mine is original as well. '02 bike and the battery has never been taken out or charged.

Spoiler:

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post #27 of 78 Old 10-14-2010, 08:17 AM Thread Starter
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Quote:
Originally Posted by REDROKR View Post
pork spending gone crazy, for what, buy a fucking 600 and be done with it for crying out loud
Easy there.....this is just a brain storm comprised of older farts who got tired of looking like Joe Racer......who have more time to ponder such things and way less money.....

Either way, any bike can be improved apon, including a stock 600.

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post #28 of 78 Old 10-14-2010, 08:21 AM Thread Starter
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Quote:
Originally Posted by rickard919 View Post
I don't know if mine has a date on it but I know mine is original as well. '02 bike and the battery has never been taken out or charged.
'03 here, still the original. It will be time for a replacement.....

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post #29 of 78 Old 10-14-2010, 10:59 AM
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hmmm, Is a hollow axle lighter than a solid one? Do woodchucks chuck wood?

BTW, a Super Duke comes with hollow axles.

I've always wondered about the flywheel on the 919, wether it could be lightened.

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post #30 of 78 Old 10-14-2010, 11:10 AM
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Chuck your radiator guards I've never witnessed them protecting anyway!

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post #31 of 78 Old 10-14-2010, 11:13 AM Thread Starter
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Sniper...you're cracking me up.

You realize I sold a KTM to buy the 9er, right?

.....had no idea the f4i axles were hollow. That right there can be had on eBay for near nothing. F4i rear axle also work?

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post #32 of 78 Old 10-14-2010, 11:27 AM
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Yep f4i rear axles are a direct swap but you won't get one for less than $15.

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post #33 of 78 Old 10-14-2010, 11:34 AM Thread Starter
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......thanks, good info.

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post #34 of 78 Old 10-14-2010, 11:51 AM
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i think ima just stick with my nice solid axles and standard battery, and just not eat the 5lb burrito before i go and ride.... much cheaper that way.

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post #35 of 78 Old 10-14-2010, 12:10 PM
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Quote:
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i think ima just stick with my nice solid axles and standard battery, and just not eat the 5lb burrito before i go and ride.... much cheaper that way.

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post #36 of 78 Old 10-14-2010, 12:13 PM
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Cracking me up too Sniper. If a motorcycle was my only mode of transportation, I'd get a Super Duke too.
All of these weight saving articles I've been reading makes for good reading. Read one the other day where a guy replaced his guages for $350 and saved 5lbs and he says it handles great. You know, gasoline weighs 6.2 lbs per gallon. On a 919, that's roughly 31 lbs worth of fuel in a full tank. Funny, I don't notice my bike handling any different when it's empty or full.

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post #37 of 78 Old 10-14-2010, 12:49 PM
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Quote:
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Cracking me up too Sniper. If a motorcycle was my only mode of transportation, I'd get a Super Duke too.
All of these weight saving articles I've been reading makes for good reading. Read one the other day where a guy replaced his guages for $350 and saved 5lbs and he says it handles great. You know, gasoline weighs 6.2 lbs per gallon. On a 919, that's roughly 31 lbs worth of fuel in a full tank. Funny, I don't notice my bike handling any different when it's empty or full.
DAMN GOOD POINT! haha.... ya if you want the cheapest weight savings just run with half a tank! thats 10lbs from the very top of the bike easy!

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post #38 of 78 Old 10-14-2010, 01:42 PM
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If you cared about performance weight, than your order of operation would be something like:

a) wheels
b) wheels
c) wheels
d) 520 chain + sprocket combo -- that's gotta save 1-2 lbs right there.

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post #39 of 78 Old 10-14-2010, 01:46 PM Thread Starter
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Quote:
Originally Posted by curiousmike View Post
If you cared about performance weight, than your order of operation would be something like:

a) wheels
b) wheels
c) wheels
d) 520 chain + sprocket combo -- that's gotta save 1-2 lbs right there.

I 100% agree......

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post #40 of 78 Old 10-14-2010, 01:49 PM Thread Starter
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Quote:
Originally Posted by Nakedniner View Post
Cracking me up too Sniper. If a motorcycle was my only mode of transportation, I'd get a Super Duke too.
All of these weight saving articles I've been reading makes for good reading. Read one the other day where a guy replaced his guages for $350 and saved 5lbs and he says it handles great. You know, gasoline weighs 6.2 lbs per gallon. On a 919, that's roughly 31 lbs worth of fuel in a full tank. Funny, I don't notice my bike handling any different when it's empty or full.
.......LOL, that was my thread.... and so is this one.

The issue.... at a local track day..... Having 1 or 2 gallons of fuel.... is ALREADY my starting point.

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