Off road tyres for KTM 690 smc

Jamie. · World Chat Champion Joined: 27 Dec 2005 Karma :

I have looked at lots of places online and nowhere seem to have 160/60/17 rear & 120/70-17 front, suitable for offroad use.. I have found one set but the tread had very large blocks, I'm looking for something a little more like a motocross tyre.

drzsta · World Chat Champion Joined: 20 Apr 2009 Karma :

Lol, you want 17" with knobblies?

Why? Laughing

Its an SM.

If you really want to go offroad then youll you need 21" front and 18" rear with probably a calliper adapter for small front disc.
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Current Bikes - BMW S1000RR ‘17 & KTM 690 SMC-R ‘12

Jamie. · World Chat Champion Joined: 27 Dec 2005 Karma :

I want to use it off road obviously Smile

The place I go is mostly gravel so if the knobblies are too fat it will cause problems.
Didn't think of changing the wheel size, seems like a lot of hassle, somewhere must sell the tyres i'm looking for..

Suntan Sid · World Chat Champion Joined: 07 May 2009 Karma :

A 160/60 knobbly, assuming you could get one, which I doubt, probably wouldn't work anyway, it wouldn't allow the tyre to dig in enough to get any grip, it would just slide all over the place!

You need to buy proper off road rims, as has already been stated.
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"Everybody needs money, that's why they call it money!" Cool

neatbik · World Chat Champion Joined: 27 Jun 2007 Karma :

You can get Conti TKC80's in 120/70-17 and 150/70-17.
I sold and fitted a pair the other week. Very strange looking in that size, and as already said a 120 section front would be a pain off road.

https://i174.photobucket.com/albums/w120/f-250ford/IMAG0074.jpg
(Picture pulled from Google)
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boundy · Nearly there... Joined: 24 Jan 2009 Karma :

Jamie. · World Chat Champion Joined: 27 Dec 2005 Karma :

I did think the tyres i'd found wouldn't have much grip offroad, that's why I was looking for 'knobblier' tyres.

Can anyone help in finding some offroad rims, or at least what sizes I will need.

Here are the specs of my bike:

Chassis, suspension, brakes and wheels
Frame type: Tubular trellis steel frame (CrMo)
Rake (fork angle): 27.0°
Trail: 112 mm (4.4 inches)
Front suspension: WP USD
Front suspension travel: 275 mm (10.8 inches)
Rear suspension: WP mono shock with Pro Lever Linkage
Rear suspension travel: 265 mm (10.4 inches)
Front tyre dimensions: 120/70-17
Rear tyre dimensions: 160/60-17
Front brakes: Single disc
Front brakes diameter: 300 mm (11.8 inches)
Rear brakes: Single disc
Rear brakes diameter: 240 mm (9.4 inches)

I am clueless with things like this so any help would be greatly appreciated. Thumbs Up

neatbik · World Chat Champion Joined: 27 Jun 2007 Karma :

I would imagine that wheels from a 690 Enduro would be a direct fit.
Brake discs and sprocket may well be different though.

Ask G, he may well know.
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Irn-Bru · World Chat Champion Joined: 13 Aug 2009 Karma :

KTM forum would be a good place for info, I don't see a lot of people putting off road wheels on their SMC though for some reason.
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KTM 990 SMT & Suzuki DR-Z 400 SM

P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

If you can do it on an R1, you can do it on your 690 Laughing

Kradmelder · World Chat Champion Joined: 13 Jun 2012 Karma :

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

Plenty of rears should be available in a size you can get to fit (ie 140/17 would probably work with a dirt tyre.)

Me, I'd still look at getting a proper size front wheel.

Unfortunately I'm not quite sure how they work it with the radial caliper etc.
Generally 21" wheels are made to work with a single sided sliding caliper. So ideally what you'd want is forks, brakes and front wheel to swap over. Not that 'most any KTM forks from 'most any 125-690 single should fit as far as I know, though it's still best to double check.

Otherwise, as can be seen it is possible, but you're going to be very limited in tyre choice.