Desert & Dualsport Gearing?


20 replies to this topic
  • DualSport650

Posted June 20, 2005 - 08:11 PM

#1

Hey TT'ers,

I've been putting on some serious miles going on Epic Dualsport and Desert bombing runs on the XR650R.

Last weekend I rode for 8 hours straight and 162 miles. Yeah!!!

Problem is, my stock 14/48 gearing is WAY TOO LOW for this high speed stuff. I'm constantly searching for a 6th gear!

So, I'm going to gear it up. I'll stay with the 14 up front because my Scott's Performance Case Saver won't take a 15 tooth CS Sprocket.

Who sells a good 43, 44 or 45 Tooth STEEL Rear Sprocket for a reasonable price? (No, I'm not going to spend $90 on a IronMan sprocket, although it's tempting! IronMan

What do you guys recommend?

  • larry650

Posted June 20, 2005 - 10:23 PM

#2

I think you get more bang for your buck at the countershaft. I`m running 15-48 on my 650r which yields almost the exact same ratio as 14-45.

  • xrdad

Posted June 20, 2005 - 10:31 PM

#3

Sprocket Specialists has a steel 45t rear sprocket that's cheap. I'm running my XR650R with a 14-45 gearing. On the highway, at 70mph, I too wish I had a little taller gearing. Maybe a 15t on the front and a 45t on the rear? Hmmm...

  • justicedone

Posted June 20, 2005 - 10:36 PM

#4

hmmmm, Ok, I am on an L, but I run 14/48 Sunstars and can hit 90mph easy... with my Teraflex even. And I love the low end torque for hill climbing, and the fact that it closed the (huge) gap between 1st and 2nd gears that is stock.

I would reccomend and check with Sunstar...they are solid. :)

  • irondude

Posted June 21, 2005 - 11:13 AM

#5

i like 15-48 for baja/dual sport. with an opened up air box and can the bike can easily pull it. no problem cruising at 70.

i use the ironman/moose combo with the stock case saver thats been slightly ground down for clearence...

add in a DID EVR2 chain and you can expect 10,000 miles of wear. so theres different ways to calculate 'cost'...

Sunstar is another option for cheapy stuff. just dont put aluminum back there...

  • DualSport650

Posted June 21, 2005 - 11:36 AM

#6

Yeah, now that I think about it I probably will go with IronMan rear sprocket and DID ERV2 becuase they last forever. I may go just a little higher in gearing than 15/48. Maybe 15/46 and get a 14 for the tight trail rides.

:)

  • captb

Posted June 21, 2005 - 02:09 PM

#7

I'm running 15/45 cruising speed running cool at 75 to 80 mph all day, hav'nt checked top end speed yet but it still pulled good to 103 mph.

  • Desertskyy

Posted June 21, 2005 - 07:42 PM

#8

I am running the stock gearing along with a riding buddy. You are not the first person to be looking for 6th gear on a XR650R. Just got back from a 1250 mile 5 day ride from Independence Calif, through Nev, to Wendover Utah and back. The 14/48 gearing seems to work in most all conditions. 2 of the days were over 300 miles each day almost all of it off road. Above 70mph the bike does get a little buzzy though.

Good luck

  • WFODEZ

Posted June 22, 2005 - 08:17 AM

#9

I Had Just Posted In The Jetting Section, But Since You Refer To A Ride You Just Did From Independence, Did You Hit Any Hi Altitudes, And How Did Your Jetting Work If So

  • DesertWill

Posted June 22, 2005 - 11:16 AM

#10

JT sprockets are made of high carbon steel and are inexpensive. I have them on my KX500 & RMZ-250. They hold up very well against the abrasion of desert sand. The stock steel sprocket on my XR650L is hanging in there, so no need to replace it yet.

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  • Moredesert

Posted June 22, 2005 - 11:55 AM

#11

I run a 15/47 for Baja with the case saver. I have to put the case saver on after the chain and sprocket. It's darn close but fits. With this gearing you can still run stock chain.

I go to Death Valley every year and I have a loop that is 250 miles over the Panament range and up the west side of Death Valley. Even with a 50 mile stretch @ 55 mph and 2 gas stops I can do it in <6 hours. There are times I am cruzing at 95 mph with the back end pitched out in turns. :) Man what a feeling going that fast with your feet on the pegs sliding around a turn going WFO :)
Death Valley

Sand Wash

  • BRP27

Posted June 23, 2005 - 09:16 AM

#12

http://www.sprockets...ductsmain.shtml

  • davecampbell

Posted June 23, 2005 - 10:18 AM

#13

I run a 15/47 for Baja with the case saver. I have to put the case saver on after the chain and sprocket. It's darn close but fits. With this gearing you can still run stock chain.

I go to Death Valley every year and I have a loop that is 250 miles over the Panament range and up the west side of Death Valley. Even with a 50 mile stretch @ 55 mph and 2 gas stops I can do it in <6 hours. There are times I am cruzing at 95 mph with the back end pitched out in turns. :) Man what a feeling going that fast with your feet on the pegs sliding around a turn going WFO :)
Death Valley

Sand Wash

i run 15/47 also for high speed/highway and it seems best

  • irace511

Posted June 23, 2005 - 04:10 PM

#14

I Go With Everyone On Th 15/48. It Workers Really Well. :)
If I Know I am Going To Do A Lot Of High Speed Ill Use 15/47. But Be Ready For The :) :D Factor.

  • Desertskyy

Posted June 24, 2005 - 09:05 PM

#15

WFODEZ, Yes we did hit some really good passes near 10K some of them still had snow on them. We sometimes had to go off the planned route just to get through. On my 650r I was running a 68s pilot the comp needle in the 3rd groove and then I stepped down to a 165 main from a 175. My bike still had good pull at 9k to 10k and ran real good for our whole trip except for me and my bike taking a bath in a river crossing. Had to turn it completely upside down with the spark plug out to get all of the water out, but the ride was great.

  • DualSport650

Posted June 24, 2005 - 09:55 PM

#16

Alrighty then!

I'm going with 15/47.

Thanks for the input gang. Ride on.

Posted Image

  • mtrhd101

Posted November 23, 2005 - 02:34 AM

#17

I run 15/45 and the stock case saver does fit.. The RPM's are where I like them for 65 mph.. Better fuel mileage too.. And what do you guys have against Allum. rear sprockets? I have been running Renthal for years no problems at all...

  • bootlegger2

Posted November 23, 2005 - 05:46 PM

#18

i rode in utah back in the beginning of october and done alot of fire road and desert riding i was using the 15-45 and it was great even for the blue hills climbing was great and i got the best fuel milage out of us all to ,even beat a 650 tricked out on the pavemant going for a high speed past down the road,but back home i had to change 14- 51 to tight and hilly,just a little input

  • DelTronXR

Posted November 25, 2005 - 07:25 PM

#19

Desert at high speed is all that I ride. I'm sporting Renthals front and rear.....15/47.....it works bitchen :applause:

  • wr450fyamaha

Posted November 26, 2005 - 10:51 AM

#20

I think you get more bang for your buck at the countershaft. I`m running 15-48 on my 650r which yields almost the exact same ratio as 14-45.



one problem with 15-48 is your chan has to turn about 7% more causing much more ware. i vote for 14/45 or 15/46 or 14/47. :applause:





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