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Old 08-26-2013, 09:04 AM   #10606
zxrider11
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2012 with stock gearing at 60mph = 4,500 rpms.

When I switched to a 42 rear sprocket, 60mph = 4,000 rpms.
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Old 08-26-2013, 11:25 AM   #10607
DirtJack
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Quote:
Originally Posted by DirtJack View Post
Calculated speed at various rpm. The 2127mm circumference may not be accurate for your rear tire. Changing the vary last entry on the browser URL, 15r45, to reflect your final drive ratios, for example 14r48 [the gearing I used in Colorado last week], will show the new speeds for each rpm. Apologies for being a geek.

Hope people didn't miss the two links in this post.
Here is a link showing the speeds for rpm using 15/42 gearing.

Just changed the last entry in the browser URL to 15r42 to get the new speeds. zxrider11 is correct, 15/42 gearing gives 59 mph at 4000 rpm.
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Old 08-26-2013, 12:58 PM   #10608
Seth S
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Originally Posted by v8toilet View Post
Mr. Seth how many miles on your bike now?
about 10,000 miles
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Old 08-26-2013, 01:01 PM   #10609
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Quote:
Originally Posted by DirtJack View Post
Here is a link showing the speeds for rpm using 15/42 gearing.

Just changed the last entry in the browser URL to 15r42 to get the new speeds. zxrider11 is correct, 15/42 gearing gives 59 mph at 4000 rpm.

I'll take a look tonight...I definitely wasn't running 126 mph. I am likely wrong on the ratios.


Checked last night and I have a 44 sprocket on the rear. Pretty sure I have a 15 tooth on the front. The bike topped out at 102 mph on the ICO and I am not 100% sure of the rpm but it was near the top of the range.
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Old 08-26-2013, 01:30 PM   #10610
Hoots
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Quote:
Originally Posted by zxrider11 View Post
2012 with stock gearing at 60mph = 4,500 rpms.

When I switched to a 42 rear sprocket, 60mph = 4,000 rpms.
I use 16:44 and run about 4,000rpm at 100kph (60mph) ...

Can cruise comfortably at about 110-115kph, with the motor just chugging along ...

Good dual sport gearing for this bike IMO ...

Makes 1st-3rd more useable for fire trails ...
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Old 08-26-2013, 01:32 PM   #10611
StuInFH
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Quote:
Originally Posted by 150ron View Post
KTM690 owners, on a STOCK KTM690R, with stock gearing, while you are doing 75mph on the fwy for LONG stretches at a time, what is the RPM at?

And, how about a real world top speed please, i know the bike is great off road, trying to see about its fwy and top speed characters, assuming the rider weighs 160 pounds, thanks.
Best gearing site I've seen. Unfortunately I don't see the post-09 690s on here, but bit of searching (or comparing your rpms/speed to what is shown for '09's results) and you could likely learn if they are different. Lots of info on this site, different combos, chain lengths, chain/sprocket wear, etc. Load the rpm chart to see what rpm is at different speeds in different gears.

http://www.gearingcommander.com/
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Old 08-26-2013, 05:11 PM   #10612
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If you take the sprocket off and lay them both down flat, you'll quickly find that the sprocket you have (which is actually from the exc) is a couple of mm narrower (the spacer part, not the actual teeth). It doesn't matter how tight the bolt is done up, it's designed to only go so far and then get locked in place by folding the lock washer up. Find a sprocket that actly fits or a washer that will fit and act as the spacer. Or take it ur dealer and them uve got a broken bike

Quote:
Originally Posted by OneEffinName View Post
I find the gearing a little too tall for my gnarly backroads stuff so my easy option is a 14T front sprocket. I have a few of them in the box from my 350 excf and my old 450 excr.

I googled around and there is no rubber damped 14T, so guys are using the 14T from the exc bikes. Cool - I got those.

BUT when I mounted it and torqued up the bolt it does not tighten the sprocket down - it just "floats". Is this right? If so will it hit the swing arm? Its soooo close.

thanks!
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Old 08-26-2013, 06:14 PM   #10613
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Hi everyone,

I have the rally raid soft luggage rack:

http://www.rally-raidproducts.co.uk/...wolfman-coyote

I am wondering if there are any issues with fitting the wings exhaust underneath the luggage rack. Anyone know?
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Old 08-26-2013, 09:38 PM   #10614
DirtJack
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Quote:
Originally Posted by OneEffinName View Post
I find the gearing a little too tall for my gnarly backroads stuff so my easy option is a 14T front sprocket. I have a few of them in the box from my 350 excf and my old 450 excr.

I googled around and there is no rubber damped 14T, so guys are using the 14T from the exc bikes. Cool - I got those.

BUT when I mounted it and torqued up the bolt it does not tighten the sprocket down - it just "floats". Is this right? If so will it hit the swing arm? Its soooo close.

thanks!
You've got to use the correct sprocket. Most KTM's compress an O ring under the bushing to seal the countershaft. With out the compression, you'll likely have a leaking countershaft.
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Old 08-27-2013, 03:23 AM   #10615
fluff34567
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Originally Posted by oneeffinname View Post
i cannot find one in the parts catalogue (only 15, 16 and 17). Do you know any more details?

Thanks

58033029014
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Old 08-27-2013, 06:18 AM   #10616
poondangle
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Quote:
Originally Posted by 150ron View Post
KTM690 owners, on a STOCK KTM690R, with stock gearing, while you are doing 75mph on the fwy for LONG stretches at a time, what is the RPM at?

And, how about a real world top speed please, i know the bike is great off road, trying to see about its fwy and top speed characters, assuming the rider weighs 160 pounds, thanks.
My 13, completely stock, just like it left the showroom, topped out at an indicated 112MPH on a closed circuit. I tried it out after the break in. I have no idea about fwy. I will say, I don't know how much I trust the speedo/odo. I seriously doubt I was going that fast. I was with a guy on a brand new 500exc, and the 690 did completely walk away from him at the top end, but again, I doubt that's saying much. I don't know what his indicated top speed was. Recently, on a new Pirelli Scorpion Rally up front, my odo was almost .5 mile off during a 13ish mile odo check at RWV, and it was nearly 4 miles off over a 60ish mile transit. I'm not good at the Chinese Algebra required to figure out how much that odo error effected my speedo at top speed. I also don't know how many mm difference there is in front tire circumference between the MT21 and the Rally. So what does that all mean, I don't know. I just know the bike is fun as hell, and quite capable.

Oh, and I weigh 190ish.

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Old 08-27-2013, 07:29 AM   #10617
DirtJack
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Quote:
Originally Posted by poondangle View Post
My 13, completely stock, just like it left the showroom, topped out at an indicated 112MPH on a closed circuit. I tried it out after the break in. I have no idea about fwy. I will say, I don't know how much I trust the speedo/odo. I seriously doubt I was going that fast. I was with a guy on a brand new 500exc, and the 690 did completely walk away from him at the top end, but again, I doubt that's saying much. I don't know what his indicated top speed was. Recently, on a new Pirelli Scorpion Rally up front, my odo was almost .5 mile off during a 13ish mile odo check at RWV, and it was nearly 4 miles off over a 60ish mile transit. I'm not good at the Chinese Algebra required to figure out how much that odo error effected my speedo at top speed. I also don't know how many mm difference there is in front tire circumference between the MT21 and the Rally. So what does that all mean, I don't know. I just know the bike is fun as hell, and quite capable.

Oh, and I weigh 190ish.
Well, the rev limiter kicks in at about 7800 rpm and my 2008 won't push that much air out of the way to reach it in 6th, but yours has the full 690 motor. Here's the calculated info from my rpm / speed calculator:

Speed table for 2008 KTM 690 Enduro

Primary drive ratio = 36r79

Rear Wheel Circumference = 2127 mm

Gear ratios = 14r35 16r28 21r28 21r23 23r22 23r20

RPMs = 7800

Final drive ratio = 15r45

_ 7800
1 38
2 54
3 70
4 86
5 98
6 108
Compute another RPM/Speed table

The ratios are all the same for your 2013, so you're not far off. Were you able to hit rev limiter in 6th?
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Old 08-27-2013, 07:56 AM   #10618
poondangle
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Quote:
Originally Posted by DirtJack View Post
Well, the rev limiter kicks in at about 7800 rpm and my 2008 won't push that much air out of the way to reach it in 6th, but yours has the full 690 motor. Here's the calculated info from my rpm / speed calculator:

Speed table for 2008 KTM 690 Enduro

Primary drive ratio = 36r79

Rear Wheel Circumference = 2127 mm

Gear ratios = 14r35 16r28 21r28 21r23 23r22 23r20

RPMs = 7800

Final drive ratio = 15r45

_ 7800
1 38
2 54
3 70
4 86
5 98
6 108
Compute another RPM/Speed table

The ratios are all the same for your 2013, so you're not far off. Were you able to hit rev limiter in 6th?
no, i wasn't on the limiter. maybe i'm too fat?
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Old 08-27-2013, 08:27 AM   #10619
Grumdrig
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Howdy folks! I'm newly the owner of a '13 690 Enduro and loving it so far. Hopefully having it will stop me from constantly trying to turn my Triumph Scrambler into a dirt bike. We'll see.

There's not much dirt nearby in the south San Francisco bay so I'm planning to get a set of 17" wheels and swap into motard mode when its appropriate. I was thinking I could keep the rear sprocket at 45T and add a tooth in the front since 16/45 is close to 15/42, the stock SMC ratio if I'm not mistaken, and I figure the chain length shouldn't need to change that way. Does that make sense?
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Old 08-27-2013, 08:33 AM   #10620
wsmc831
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Quote:
Originally Posted by Grumdrig View Post
Howdy folks! I'm newly the owner of a '13 690 Enduro and loving it so far. Hopefully having it will stop me from constantly trying to turn my Triumph Scrambler into a dirt bike. We'll see.

There's not much dirt nearby in the south San Francisco bay so I'm planning to get a set of 17" wheels and swap into motard mode when its appropriate. I was thinking I could keep the rear sprocket at 45T and add a tooth in the front since 16/45 is close to 15/42, the stock SMC ratio if I'm not mistaken, and I figure the chain length shouldn't need to change that way. Does that make sense?

If you are only doing pavement, then makes sense. I mounted Scorpions and found them to be plenty sticky on pavement, and did ok when I'd venture to roads like Buzzard lagoon or similar gravel/dirt roads in the SC mountains.

Be aware the 690 rear hub is cush, and wider, so wheels for 125-500 won't work. Ktmtwins has a nice set of tubeless for about 2k, or you can buy oem's from late model smc's to stay tubeless. Slim pickings when it comes to used 17's for the 690.
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