Weight Reduction Program
Posted July 02, 2001 - 04:50 PM
I'm thinking the program goes something like this:
Ti Subframe - 2 lbs
Ti Shock spring - 2.5 lbs
DSP composite airbox - 2 pounds
Remove tail light - head light - Odometer & drive - 1.5 lbs
Partial Ti fastner changeout - 1 lbs
There may be more that can be done with lighter tire tubes and other tricks....who knows.
Before someone offers - I know that I could spend some time at the gym and lose the weight and save the pocket book - but I can do that also (and believe me I need to!). This is becoming a challenge - Ideas????
[This message has been edited by Michael (edited 07-02-2001).]
Posted July 02, 2001 - 05:17 PM
I paid $475 new and am open to an offer. This is for a 99.
'99 WZ/YR (you choose!) with ALL YZ mods, de-octopused, DSP Doug Henry airbox w/ velocity stack, FMF PowerBomb header, Stroker SX-1 silencer, SS front brake line, OEM YZ tank, IMS YZ seat.
Posted July 02, 2001 - 05:23 PM
Posted July 02, 2001 - 07:42 PM
Posted July 03, 2001 - 04:16 AM
if any more than 3 of these ideas sound good to you, lock your self far away from your bike, as one or both of you may be seriously hurt.
Posted July 03, 2001 - 06:53 AM
I didn't realize that there was 9 lb/sq-in of air in the tires - that's why they are so heavy! If I reduce the air to 7 lb/sq-in how much weight do you think I'd save?
Posted July 03, 2001 - 07:13 AM
Where Di is the diameter of the tube.
I know the kick stand is on the frame, but if you look at it when its up, It must try to move when the bike bottoms on a flat landing, and thus the inerta contributes to unsuspended mass . Either way its heavy, but I MUST have a kickstad on my bike, so I am going to make a carbon fiber one. It just has to hold the bike up, and all the stress is liniear, so a good tube of carbon should do the trick and weigh less than the spring that holds it up! .
Next stop on the extream weight loss program, Carbon fork sliders!!! I was at the Bicycle shop and saw a very heafty looking set of inverted carbon fiber forks for Extream downhill moutain bike riding. They had two billit alum tripple clapms and all. They are made by a local guy that gets $1k for a pair like that. I wonder what he would get for just the upper sliders for your WR?????
Posted July 03, 2001 - 09:28 PM
How did I do it. I stated doing more cardio and laying off the chunky chews and beer...
seriously, I have a freind obsessed in dropping weight on his mountain bike. He should have stated with the extra 20 pounds he's carrying.
01 WR426 Uncorked.
Posted July 03, 2001 - 10:22 AM
Posted July 03, 2001 - 11:25 AM
AMA, Dist.36, BRC Lifetime Memberships
[This message has been edited by RetSenior (edited 07-03-2001).]
Posted July 03, 2001 - 11:39 AM
Sorry, I too could not resist.
Posted July 03, 2001 - 12:12 PM
Posted July 03, 2001 - 01:16 PM
If you consider this, I add the additional advice. This will increase your standing amongst peers. First, suit up early and show how ready you are. Next, move around helping get everyone else ready. This way they will see that you are so dedicated to helping other that you are sacrificing yourself.
Lastly, you won't have to wash your bike and maintenace it when you get home.
1996 300 EXC
1987 Suzuki LT250R
(Glamis chrome beast)
Posted July 03, 2001 - 01:25 PM
You know why my sister said he could buy a bike was that he would leave her alone and work on it in the garage all night and that would leave more time for you to come over and visit her
[This message has been edited by Unkle Moose (edited 07-03-2001).]
Posted July 03, 2001 - 03:20 PM
RetSenior - I thought you had your KTM nose stuck up in the air and NEVER visited this site, seems you just have to come around to see how men spend their time, and how real motorcycles get discussed. We have had no injuries on this site from people patting themsleves on the back for buying "girlee bikes" with magic buttons (I understand you strained your shoulder doing just that last week).
Unkle Moose - Mister DNF - You really should try to do something to maintain you bike other than put gas in it. At least wash the blood off it after your last ride. You might even consider paying me for the parts and decals you ripped off from me!
As for the rest of you bums......everyone seems to be getting all hot and bothered over the RC450F - why - it's lighter, it's red, and it's new. I was just wondering where we could go with ours with ours if we really tried to reduce weight. Didn't Clark do a serious attempt at weight reduction? Anyone else out there even care?
Posted July 03, 2001 - 03:38 PM
you could take off the coolant resevoir, the YZ does not have it and it works fine. there is also the light, which can be put back in if you need it. Shave your seat. Only fill up with the gas you need, requires pre-planning though. there are probably more ways to skimp on weight.
Here is a question for you... why? I know the obvious reason. but, if you think about a bike like the XR250R which stock weighs almost exactly the same as the WR250F but "feels" lighter because of the weight distribution (lower center of gravity). IMO, the XR250R is a much lighter bike out the box than the WR. You would have to look at the specs just to know it is the same weight. After some good mods for me it feels much better. It feels just as heavy when you have to pick it up off the ground though.
Okay, here's my point. Shave off the easy weight from you body and the bike. But before you make BBR and the others more rich. Consider what will make the bike more responsive and feel lighter. It is possible. The big difference for me was the IMS/ty davis seat and tank. The tank being thinner and deeper (sits much lower than the stock tank) throws that liquid weight of the gas to a lower fulcrum point. shaving your seat and even lowering the suspension can help with this.
2001 WR250F - Snorkle out, t-stop cut, grey wire mod, YZ timed, DR.D Pipe, Cycra Pro-Bend guards, Ty Davis/IMS seat and tank, handlebar hot start, panoram computer, Mich S-12 Rear/ Mich starcross MS2 front, Ty Davis rad supports (don't waste you money on these), Scotts Damper and triple clamp w/ Protaper bars, stock jetting, fuel screw 1.75 out, that's about it...
[This message has been edited by Mook (edited 07-03-2001).]
Posted July 03, 2001 - 05:18 PM
I have a friend that has taken off his kickstand and everytime we stop for a break he has to look and look and look for a tree or rock big enough to prop it on, I think that if the WR did'nt come with a kickstand we would all be talking about putting one on. Alot of the parts we buy for our bikes put weight on like skidplates ,radiator guards, frame guards, shark fins, steering stabilizers etc... but I think all of those parts are worth every ounce of weight, those parts can really save you big time. I also feel that the biggest drawback that our bikes have IS the weight factor. But Yamaha is the one that should be spending all of the money getting all the weight down, not us. KTM did it!! Even with the magic button!! Honda WILL do it too. My guess is that we will see the WR get lighter within the next two years. To me spending hundreds to save two pounds is out of the question, I can find better ways to spend my money.
WR426f IMS/SDG, Scotts clamp,shark fin & dampner, Pro-taper, Hebo , Pacemaker 3, Procurcuit T4
[This message has been edited by Dan Lorenze (edited 07-03-2001).]
Posted July 03, 2001 - 08:36 PM
Posted July 03, 2001 - 08:44 PM
This isn't something for the faint of heart. Near as I can figure, it will cost also $150/lb to reduce the weight, up to about 11 lbs, then it gets really expensive. I'm going play and see where this leads. I'll keep you posted, maybe we get together and you can judge for yourselves. Mean while - I've got about two pounds to lose from my aXX for every pound I take off the bike....I gotta go work out.
Posted July 03, 2001 - 10:22 PM
I know the stock excel rims are pretty good, but are there better options for hubs/rims?
'00 WR400F, YZ Timing, FMF Power Core IV2, Renthal Bars.