ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-31-2013, 10:40 AM   #286
Deseret Rider
Gnarly Adventurer
 
Deseret Rider's Avatar
 
Joined: Mar 2008
Location: East Central Utah (Deseret)
Oddometer: 245
front sprocket change ???

I can't get the gear ratio interactive to work----the one at http://www.gearingcommander.com/

I am wondering what a change from a 13 tooth to a 14 will produce-in top gear 5th --i.e. what is my speed at 4000 RPM with the 13/50 ----what would it be with a 14/50?
-2012 WR 450 F
Primay ratio ---2.650
120/90/18 Rear tire
114 links of 520 chain

Can anybody do those calculations for me?
Deseret Rider is offline   Reply With Quote
Old 05-31-2013, 02:48 PM   #287
B1
Carbon-based bipedal
 
B1's Avatar
 
Joined: Jun 2009
Location: Arse-trailer
Oddometer: 3,195
just get a calculator. 14 divided by 13 then multiply that with the speed.
__________________
free enduro training vids for gumbies here
B1 is offline   Reply With Quote
Old 05-31-2013, 03:02 PM   #288
BygDaddee
Where do I get a pie
 
BygDaddee's Avatar
 
Joined: Oct 2012
Location: Brisbane Northside, OZ
Oddometer: 1,569
At 4000 13/50 = 60.8kph
4000 14/50 = 65.5 kph

6000 13/50 91.2kph
6000 14/50 98.3kph

I'm running 15/50 at the moment on my 06
4000 70.2 kph
6000 105.3kph

All 5th gear calcs.
__________________
Relax and enjoy the journey, not just the destination.
2013 WR450F(The best bike KTM never built) and BMW G650GS Sertao (The refined mans DR)
Pauls Spot Tracker http://share.findmespot.com/shared/f...mgxmQRRUCqrKiY
BygDaddee is online now   Reply With Quote
Old 06-02-2013, 09:50 PM   #289
itrack
Gnarly Adventurer
 
Joined: Jun 2012
Location: South Texas
Oddometer: 114
I smacked a tree at 20mph last weekend while riding Red River on the TX/OK border. Anyone have a stock header pipe for a 2012/13 they want to let go for a good price. Funds are limited right now and my bike is out of commission until I get a pipe. Its smashed into the oil temp sensor and throttle cable, also appears to be touching the rear shock. You can send me an email at jacobgroves@gmail.com if you have one you want to let go.






Skip to 5:18 to see a WR stuck to a tree :)
https://www.youtube.com/watch?v=bb_sAkga2w0

itrack screwed with this post 06-02-2013 at 10:04 PM
itrack is offline   Reply With Quote
Old 06-10-2013, 05:05 PM   #290
Deseret Rider
Gnarly Adventurer
 
Deseret Rider's Avatar
 
Joined: Mar 2008
Location: East Central Utah (Deseret)
Oddometer: 245
gearing changes

THanks guys for the gearing information. A couple days ago I installed a 14 tooth Counter Sprocket ----and made no other changes other than to adjust the chain tension back to spec. Then I made a 'milage' run for nearly 100 miles on a route which will amaze you because of it's incredible 'advantage' to yield the best possible milage-------The first 20 miles short and fairly steep upgrade on pavement----but not so steep that I could not pull it easily in 5th gear.
The next 80 miles ---all on a gradual downhill route on very good graded dirt---loafing along in top gear and back to the start------then filled up with gas again and here are the numbers:
97.6 miles-----1. 769 gallons of gas.
If my calculator is correct that works out to be 55 miles per gallon.

I'll bet there is no other route in the country where I could get that kind of milage----and probably never again will I ever ride a route entirely in top gear with such a long downgrade to upgrade component-----

All of this said---I'm wondering what these bikes will do on the average hard dirt ride?----What is the average milage I might expect to get when I am riding hard in the dirt?-------What milage do you get on yours during the average ride in the dirt?
Deseret Rider is offline   Reply With Quote
Old 06-10-2013, 08:37 PM   #291
B1
Carbon-based bipedal
 
B1's Avatar
 
Joined: Jun 2009
Location: Arse-trailer
Oddometer: 3,195
had a fair bit of old WR450F video footage lying around and thought i'd try to edit it into something useful for anyone thinking of buying the blue beast...

__________________
free enduro training vids for gumbies here
B1 is offline   Reply With Quote
Old 06-11-2013, 05:40 AM   #292
0405canvet
Gnarly Adventurer
 
Joined: Apr 2012
Location: brisbanish
Oddometer: 341
Wr

Your making it hard not to consider a WR B1, with all your lurking around the blue forums!
0405canvet is offline   Reply With Quote
Old 06-11-2013, 05:56 AM   #293
BygDaddee
Where do I get a pie
 
BygDaddee's Avatar
 
Joined: Oct 2012
Location: Brisbane Northside, OZ
Oddometer: 1,569
It's not a bad bike for lurking around and riding between mt Mee, glasshouse, Belthorpe, conondale, Jimna etc. my cush wheel is waiting to fit now.

Fact: gear ratio is as wide as a six speed 690, the 690 just hides it a little better.

Quote:
Originally Posted by 0405canvet View Post
Your making it hard not to consider a WR B1, with all your lurking around the blue forums!
__________________
Relax and enjoy the journey, not just the destination.
2013 WR450F(The best bike KTM never built) and BMW G650GS Sertao (The refined mans DR)
Pauls Spot Tracker http://share.findmespot.com/shared/f...mgxmQRRUCqrKiY
BygDaddee is online now   Reply With Quote
Old 06-11-2013, 01:34 PM   #294
B1
Carbon-based bipedal
 
B1's Avatar
 
Joined: Jun 2009
Location: Arse-trailer
Oddometer: 3,195
Quote:
Originally Posted by BygDaddee View Post
I
Fact: gear ratio is as wide as a six speed 690, the 690 just hides it a little better.
true, they are well spread for a five speed box. but would be great if they could adapt the 6 speed from the WR250R to it's big cousin.

it's one of the things i hated about the 690,such a close ratio gearbox for a big thumper.
__________________
free enduro training vids for gumbies here
B1 is offline   Reply With Quote
Old 06-11-2013, 02:04 PM   #295
BygDaddee
Where do I get a pie
 
BygDaddee's Avatar
 
Joined: Oct 2012
Location: Brisbane Northside, OZ
Oddometer: 1,569
Yes if only they'd build the WR450R

But the 690 box is fine for me, yes wider would be an improvement but I'm ok with it and the power lets you get away with a higher first gear especially seeing the evo air box, Akra pipe and Akra mapping smooth out the throttle delivery down low.

However we digress and this is the WR thread

Quote:
Originally Posted by B1 View Post
true, they are well spread for a five speed box. but would be great if they could adapt the 6 speed from the WR250R to it's big cousin

it's one of the things i hated about the 690,such a close ratio gearbox for a big thumper.
__________________
Relax and enjoy the journey, not just the destination.
2013 WR450F(The best bike KTM never built) and BMW G650GS Sertao (The refined mans DR)
Pauls Spot Tracker http://share.findmespot.com/shared/f...mgxmQRRUCqrKiY
BygDaddee is online now   Reply With Quote
Old 06-12-2013, 01:55 PM   #296
Deseret Rider
Gnarly Adventurer
 
Deseret Rider's Avatar
 
Joined: Mar 2008
Location: East Central Utah (Deseret)
Oddometer: 245
I haven't done any precise calculations but I think it gets about 50 miles/gallon with stock gearing.[/QUOTE]

I wouldn't want to go back to those old Brit turkeys----but they were very good on milage. I put a hi compression piston in a 50's BSA 250 CC with stock road gearing and got 119 miles per gallon on the test run. Later, I bought a Triumph 500 CC (twin cylinder) new in 1965 and was disappointed that it got only 75 miles per gallon. Of course both of these were hiway bikes with hiway final gearing-----but still?????----
Deseret Rider is offline   Reply With Quote
Old 06-12-2013, 02:09 PM   #297
T-cosmic
Gnarly Adventurer
 
T-cosmic's Avatar
 
Joined: May 2011
Location: Split,Croatia
Oddometer: 274
7 lit/100km... 2/3rd gear rocky trail.




__________________
Share the best off road tracks you have ever ridden on www.adv-tracks.com
T-cosmic is offline   Reply With Quote
Old 06-12-2013, 03:27 PM   #298
B1
Carbon-based bipedal
 
B1's Avatar
 
Joined: Jun 2009
Location: Arse-trailer
Oddometer: 3,195
Quote:
Originally Posted by SR View Post
I love my 12 WR450, but the gear range is definitely too small. It needs a taller top gear. Changing the sprockets wont fix it. The bottom gear is just right, maybe even a little tall. It's tedious on the flats within seconds and the top gear needs to be 5-10 taller, or better yet a 6th gear. Otherwise, it's a very sweet bike.

I haven't done any precise calculations but I think it gets about 50 miles/gallon with stock gearing.
mentioned it quite a while back, but i found the rekluse clutch was a handy solution. geared the bike to cruise comfortably on the highway (45 rear, not sure on the front) but the rekluse still made things easy peasy in the gnarly stuff.
__________________
free enduro training vids for gumbies here
B1 is offline   Reply With Quote
Old 06-12-2013, 06:50 PM   #299
JTucker
Beastly Adventurer
 
JTucker's Avatar
 
Joined: Sep 2008
Location: West By God Virginia
Oddometer: 2,270
My 05 gets around 50mpg riding mixed off road. I tend lug the bike a lot though. It probably uses more at higher speeds.
__________________
http://www.ktm-parts.com
03 Aprilia Caponord 06DR650
13 GasGas EC300 05 WR450F 87 T-dub
JTucker is offline   Reply With Quote
Old 06-13-2013, 08:59 AM   #300
andrewgore
Team MGH
 
andrewgore's Avatar
 
Joined: May 2008
Location: NW Suburbs, IL
Oddometer: 3,340
How you guys getting 50mpg on your WR450F? Last trail ride in the UP we got the following:

2005 WR450F (14/50) - 30mpg
2012 WR450F (stock gearing) - 30mpg

That trail ride (approx 300 miles total) was a mix of single-track, 2-track, gravel roads, and a couple miles of road. We were more confused that in exact same conditions, that the FI 2012 got the same MPG as my Carb'd 2005. That being said, I'd give up 5-10MPG for the throttle response of that FI. Spot On.

During a harescramble on my 2005, I managed 19.5mpg, which seems about on par for a race pace.


Andrew
andrewgore is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 02:36 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014