Adv. wheels on my 950SM!

Discussion in 'Road Warriors' started by brents347, Jun 24, 2006.

  1. brents347

    brents347 Trusting my Cape...

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    Hello All-

    I have just mounted a set of 19"/17" Adv. wheels on my 950 SM and want to see what you all think.
    This is a link to my post on the KTMTalk site because I can't post pics here.
    Thanks for any input.
    Brent

    http://ktmtalk.com/index.php?showtopic=175752
    #1
  2. Jeffy

    Jeffy Hmm...

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    Looks like KTMTalk requires a membership to view posts.
    #2
  3. brents347

    brents347 Trusting my Cape...

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    Sorry, my bad. Lets see if this works.

    Well, they said it couldn't be done...
    They said it shouldn't be done...
    They said it wouldn't be done...

    They might have been right, but I did it anyway. I have mounted a set of 19"/17" Adv. wheels with D/S tires on my 950 SM. Here is a look at the profile of the two rear wheels. The size is almost identical.

    [​IMG]

    This is what it looks like done. I think they fit pretty well.

    [​IMG]

    This close up of the front shows the new wheel with the stock front brakes. I used the stock SM caliper set-up, and mounted Adv. rotors with custom rotor spacers to fit the stock SM spacing. Axle spacers needed to be custom made but both front and rear retained stock axles. I bought a new SM fork protector set and cut out the inner fender to accomodate the 19" front.

    [​IMG]

    The rear wheel slid right into place. Stock axle, spacers and all. I used a new chain with a bigger rear sprocket.

    [​IMG]

    I just got the wheels on, so no ride reports yet, but what do you think?

    Why, you ask? Because I could I guess. I wanted to achieve a quick-change set-up so that I could enjoy all the SM has to offer in stock form while still being free to do some real D/S rides with some level of confidence. Where I live in the Sierra Nevada mountains there is alot of this to be done.

    520640, I read your off-road report, and have done as much as 100 fire-road miles with the bike in stock form. I agree it does really well, but I didn't want to risk hurting a mag wheel and did want the little extra traction the Anakee tires could offer off-road. I also felt like the 19" front would slow down the steering some and make the bike a little more stable off-road.

    Here is one question I have. Do any of you have any concerns with me using a master link chain on this bike? It is the correct chain for the bike, it just has the off-road style removable master. Does any modern street bike come with a removable master? I don't want to lose the chain and waste the cases just for this experiment.

    Lay it on me boys!!
    Brent
    #3
  4. twinrider

    twinrider pass the catnip

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    I've seen one fail on a 250 2-smoke. I wouldn't use one on a 1000 vtwin.
    #4
  5. Arch

    Arch Incurable Gearhead

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    Nope.
    #5
  6. Scary

    Scary n00b

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    Hi all ! Nice job on the wheels & we'll be interested in how it rides now too.
    Excuse a lurker butting in, but I've been running clip joining links on bikes for years, differing sizes of chain too on different brands of bikes(& Horse power) with no dramas...But I did come up with a safety trick that works incase you're interested....
    Before u fit the clip on but after the link & outta plate are fitted, wipe the outta link plate with the likes of acetone or methylated spirits to remove oil/grease (just a little on a rag), also wipe the clip too & fit it, then smere on a bit of high grade silicone seller between the two pins & onto the the clip etc.,.... the water barrier type they use to make/glue together fish tanks & alike. U don't need heeps just enough for a bonding affect on the clip to the outta plate/pins. Let it dry over night if possible & u have a great safety catch. It stays put until u remove it & doesn't brake down with lubes etc. I've had it last 15k kms on my Aprilia Tuono no worries !:thumb
    #6
  7. ROADCAPTAIN

    ROADCAPTAIN ROADCAPTAIN

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    I love it
    I have a spare set of 19/17's in the shed off my adv 990
    I am going to do my 950 SM
    It looks mad....And to think I was going to buy a Super enduro
    Save my money.. burn gas and drink beer......Cheers:clap :rofl
    #7
  8. wpbarlow

    wpbarlow Long timer

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    Hey Brent,

    do you have any measurements for the rotor and axle spacers? Or do you think every bike will be unique enough to merit doing one off every time?

    How's the MT60 lasting on the big bike? They wear pretty quickly on the Duke.

    Waiting for a ride report...

    thanks,
    #8
  9. brents347

    brents347 Trusting my Cape...

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    Walter,

    The spacers would be universal to all SMs'. I don't recall what the dimensions are but the machine shop I used would have the program to cut more.

    Here is the latest complication I haven't gotten into here yet...

    I mounted a stock Adv. hub with 19" rim. I don't know what the lace is but the wheels were built by Buchanens. The stock calipers on the SM are fixed thus the need for the disc spacers to allow the discs to correctly hit the calipers. Unfortunately, the SM calipers are a very wide four piston design and while they cleared the stock thin mag wheels, they just barely rubbed the spokes on my Adv. wheels. Nothing horrible, but it did require attention.
    What I did was space out the calipers off the mounts with some custom washers and new caliper bolts (the spokes taper in to the center of the rim as you go away from the hub). The stock SM rotors are 310mm and the Adv. rotors are 305mm. That meant that after the new caliper spacers the rotors were not full depth in the calipers by about 5mm (2.5mm in reduced rotor diameter, 2.5mm in caliper spacer). In other words, not achieving full pad contact on the rotor. My thinking on this was 'no problem, it will decrease the sensitivity of the brakes some'. I stand by this and can tell you that the bike still has more brakes than is necessary for the D/S tire. Stoppies, no problem. Front wheel lock up on pavement, unfortunately no problem. I feel that I am careful enough to moderate my brake use and don't see this as an issue. I am now considering switching the Adv. wheels to 320mm discs from a 625smc type bike (which should have the same bolt pattern as the Adv.) which would put the rotors right back in the meat of the caliper pads.

    It is possible some one like Woodys could lace you a wheel and keep the spokes inward toward the center of the wheel some (it would take very little), but I don't know.

    I haven't given the bike a big off-road test yet, but the little I have done has been nice and stable. The SM street suspension settings aren't great for dirt, but it is a compromise. I will develop a street/track setting and a D/S off-road setting and then just live with it. On the road, the bike is still very fun to ride, and still turns in well although a little slower. the MT60 is not going to last long on a bike like this. I will be using Anakees after this but I suspect they won't last much longer. If I bought a bike based on tire life I'd be riding a scooter, so it is what it is.

    Well, if you read through all of that, that is my story. I have nothing left to say. I shall now go ice my finger tips.

    Brent


    Oh yeah, one more thing. The pegs are a little narrow for me (which is to say the tank is fat) when in the standing riding position, so I may adapt something here as well.
    #9
  10. nitrotain

    nitrotain NITROTAIN

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    You have got me looking at this set up any updates on how it works?
    #10
  11. fred boyd

    fred boyd n00b

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    according to ktm web site the standard wheel size for the adv is 21"/18".
    where did you get the 19"/17". can you fit 19"/17" to the adv.

    fred
    #11
  12. brents347

    brents347 Trusting my Cape...

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    Hey guys,
    So, I have given the bike a small dose of off-road and it is real nice. The steering is slowed down by the 19" front but it is a good thing. Steering is predictable yet stable. It's no RM125, but I already knew that. Traction is seriously lacking, but then again, I already knew that! I have not bottomed the front end yet, but I suspect when I do the tire will rub the front fender. I'll let you know. The bar position is a little low for riding on the pegs, so I ordered a new Emig racing clamp/stabilizer kit that will raise the bar height 3/4". That should arrive tomorrow. I will post up on the install.
    On the street, I have riden the bike up to 80 mph at cruise, which is as fast as I want to cruise on these tires. I did one quick blast up to 100 mph with no problems. Nice and stable. Or atleast as stable as these tires get.
    On a side note, I have now ground all the way through the stock pegs, so I am going to weld a new outer hoop to the stock pegs and make them about 1/4" wider on each side for a better platform off-road. Next, I'm going to build a set of aluminum pegs out of round stock that will be slightly higher and maybe slightly rearset for trackdays. I suspect this will require a modified/raised shifter but I haven't gotten that far yet. It is way too fun to blast around the outside of sport bikes on the track. I had a guy on a cbr600 try to chase me after I passed him on the outside last weekend only to tuck the front end two turns later. :rofl He is a friend, and he and the bike were o.k. (just a little cosmetic damage to both) so I am allowed to laugh. Anyway, thats my saga. I'll update you as things go on. Till then...
    Thanks for the interest,
    Brent
    #12
  13. brents347

    brents347 Trusting my Cape...

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    Fred,
    The 19"/17" Adv. wheel are a common swap form the stock 21"/18" for Adv riders to improve the bikes on-road prowess. Do a quick search here and you'll find more info than you care to read.

    Brent​
    #13
  14. motolocopat

    motolocopat When in doubt gas it!

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    Thanks Brents347 for pointing me here.

    Photos appear to have disappeared though.

    Can you update your experience since you have now live and loved with her for over a year?

    Thanks,
    #14
  15. brents347

    brents347 Trusting my Cape...

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    Although I loved it, I really didn't live with it for all that long! It was actually so good that I bought an Adventure and put the SM back on it's stock mags. I found that the bike worked very well with these rims though.

    Handling characteristics were very stable, although a little slower to turn in as you would expect. Mostly, I found that having the 19" front wheel and D/S tires gave me the confidence to ride the bike beyond it's other limitations. In other words, the wheels/tires were great, but you found out much more quickly the limits of the shorter suspension travel and the unprotected headers and cases. I didn't do any case damage, but I smashed the stock headers real quick. Once I put the full Akra exhaust on, I wasn't going to risk smashing a header again and thus the change back to stock wheels. I still ride the bike on fire roads, and still managed to flat spot the header, but I did it with the stock wheels!

    [​IMG]
    #15
  16. motolocopat

    motolocopat When in doubt gas it!

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    Yes that would be a sweet road bike for Ecuador. All the roads are great here in that they are full of curves.......... there also full of everything else imaginable. I wouldn't want it for offroading just paved and sometimes graveled roads. Or sometimes you just want/need to hit the shoulders.

    Thanks for the photo, it is now savede with the rest of the porn..
    #16
  17. ducky950

    ducky950 Gnarly Water Fowl

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    Brent,

    Ever consider using a header from the ADV and rear exhaust? I hear the cans from an ADV fit the SM (not sure about the R). Haven't heard if the header does...yet.

    Do you think the 21" ADV front would work on the SM? I also am thinking of the possibilities the SM has to offer.....Obviously I would also need to make spacers for my Galpher rotors and axles front and rear, do you also think the 18" rear would clear the shortened swingarm of the SM? Did you try using the ADV front & rear axle spacers on the SM or were they completely different?

    Inquiring minds want to know! :lol3
    #17
  18. brents347

    brents347 Trusting my Cape...

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    Ducky,

    In my opinion an 18" rear with a knobbie would not fit into the SM swingarm and the 21" Adv. wheel will definately not fit on the front. The problem is that the tire would make contact with the radiator when the forks compressed.

    I did use the Adv. wheel axle spacers on the rear, but the fronts had to be custom.

    And no, I never considered using an Adv high exhaust on the bike because as I said at that point I bought an 950 Adv. and solved the whole problem. I have heard people talk about it, and in my opinion it is possible, someone just has to step up and do it.
    #18
  19. ducky950

    ducky950 Gnarly Water Fowl

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    Brent,

    Thanks for the info!

    Did the 19" front clear the radiator when fully compressed?:ear
    #19
  20. brents347

    brents347 Trusting my Cape...

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    Yep, no problems with the 19" front.
    #20