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Old 02-10-2010, 11:07 PM   #1
meteorite OP
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KTM 690 Enduro gearing

I'm sure this must be hiding in the merged thread, I just could not find it. Any rule of thumb on final drive gearing for this bike for various conditions. I admit I'm a novice at this but you got to start somewhere. Any big DON'T's ?
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Old 02-11-2010, 12:35 AM   #2
Mudguts
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i like to stock gearing 15/45 it good for every thing rev a little hi when sitting on the freeway at 110kph , just just mine to 16\45 and its a little tall for in the bush 16/46 is next on the list





Quote:
Originally Posted by meteorite
I'm sure this must be hiding in the merged thread, I just could not find it. Any rule of thumb on final drive gearing for this bike for various conditions. I admit I'm a novice at this but you got to start somewhere. Any big DON'T's ?
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Old 02-11-2010, 01:54 PM   #3
rallyman
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Countershaft

The golden rule with the lc4, past and present, keep a 15T or higher. If you want more pickup 15/47or8. Three on back equals 1 on the front. Dropping to a 14 is tightening the angle to much.
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Old 02-11-2010, 02:53 PM   #4
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You can use

http://www.cs.trinity.edu/~jhowland/...00&final=15r45

to see the effects of gearing changes. Change the last item in the link (final=14r45) or (final=16r45) to suit your gearing choices.

http://www.cs.trinity.edu/~jhowland/...00&final=14r45

http://www.cs.trinity.edu/~jhowland/...00&final=16r45

http://www.cs.trinity.edu/~jhowland/...00&final=14r48

http://www.cs.trinity.edu/~jhowland/...00&final=15r51
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DirtJack screwed with this post 05-23-2013 at 04:37 PM Reason: Added 14/48 and 15/51 gearing
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Old 02-11-2010, 05:51 PM   #5
meteorite OP
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Man, you guys are rich, rich with the knowledge from your experience. Thanks
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Old 02-11-2010, 06:35 PM   #6
plumberpat
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What's your thoughts on running a 14 x 48 set up? I've found that 15 x 45 makes it tough to crawl up rough single track without overpowering the rear.
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Old 02-11-2010, 06:59 PM   #7
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My thoughts

Quote:
Originally Posted by plumberpat
What's your thoughts on running a 14 x 48 set up? I've found that 15 x 45 makes it tough to crawl up rough single track without overpowering the rear.
14 x 48. Keep away from the 14, lets say 15 x 51 I guess you could try it. She'd sure have some pickup.
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Old 02-12-2010, 09:08 AM   #8
Sparrowhawk
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There are lots of tools available on the web to calculate the effects of different final drives. This is my favorite but you need MS Excel spreadsheet compatible software to run it: http://www.dropbears.com/u/utilities/gearing.htm

Here are other web based tools:

http://gearingcommander.com/

http://woodsware.aciwebs.com/gears/gears.asp

http://dirtjapan.com/myscript/gear_selecter.php

http://www.bikerenews.com/Stories_Ar...Calculator.htm

Sparrowhawk screwed with this post 02-12-2010 at 09:24 AM
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Old 02-12-2010, 09:36 AM   #9
Windrat
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I'm using a 16-50 = 65 to 70mph @ 5000rpm and a 16-45 = 70 to 75mph at 5000rpm I use the 16-50 for hard dirt touring with the bike loaded for camping and the safari tank and for unloaded trailered to single track riding. I use the 16-45 for day rides with no load and the tank off in tight tracks I'm using alot of cutch but for the 2 lane tar it's a great gear set
There's no one set up that will do it all thank's to ktm's short sighted design... the stock 15-45 is the best do all
Tryed a 14-50 set can you say wheelieee the bike hits 55 mph at 5000rpm
have fun
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Old 05-17-2013, 02:54 PM   #10
everetto
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Countershaft sprocket question

I wasn't sure about the best place to post this question, either in the Wunderfest thread or revive an older gearing thread, so here goes; I just put on a 16 tooth countershaft sprocket on my 2013 690 enduro because of an upcoming trip with quite a bit of highway miles. The stock 15 tooth sprocket has the rubber "damping" pieces on both sides, and the KTM 16 tooth sprocket did not come with any and the ones from the stock one won't fit due to the diameter difference (the 16 tooth sprocket does have holes in it as if it could take similar rubber pieces).

What is the rubber for, NVH reduction? Do I need to look for similar pieces for the 16 tooth sprocket?. For now I am going to run it without any, and I think many aftermarket sprockets are solid anyway so you could not mount rubber on them. Thanks in advance for any info.

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Old 05-17-2013, 07:35 PM   #11
MrHix
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I went from 15/45 to 14/45 to test it and keep the same chain. For pure offroad, it is too high for me (Hatfield/McCoy). For the mix I normally do, it seems OK. I may go to 15/48 later if the rear will fit with the chain guide.

Cheers,

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Old 05-17-2013, 08:02 PM   #12
wiswoodsguy
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Quote:
Originally Posted by rallyman View Post
14 x 48. Keep away from the 14, lets say 15 x 51 I guess you could try it. She'd sure have some pickup.
I absolutely love the 14/48 set up I'm running. Pulls hard everywhere, not jerky anywhere, fits my riding style perfectly
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Old 05-18-2013, 05:41 AM   #13
MrHix
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Quote:
Originally Posted by wiswoodsguy View Post
I absolutely love the 14/48 set up I'm running. Pulls hard everywhere, not jerky anywhere, fits my riding style perfectly
The chain guide doesn't interfere with the 48 rear?

Thanks,

MrHix
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Old 05-18-2013, 08:30 AM   #14
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I use the following:

14/45: trailriding
15/45: general riding
16/45: longer distance road rides.

I do have a another set of wheels fitted with enduro tyres & mousses. The 16t front really helps with mileage, I only have the stock tank fitted at present.
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Old 05-18-2013, 08:41 AM   #15
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I think the rubber part is for noise reduction. Most replacement sprockets I get do not have it and no issues.

I usually run the stock gearing which I guess is 15/45. I have tried 16/45 but that was too high for off road. 14/45 is too low for all the highway I have to do to get to the dirt. For 95% of the stuff I ride off road the stock gearing is OK, but I do not ride much single track.
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