Beware: F800gs Rims Are Junk!

Discussion in 'Parallel Universe' started by Dirsuper, Mar 16, 2010.

  1. craftycoder

    craftycoder Motobrain PDU

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    Stiffer sidewalls is certainly an aspect of offroad tires. I don't think you can count on them to protect your rims from under inflation though. Bikes (big ones even more so) require "appropriate" inflation for the circumstances. This is a moving target based on your suspension, tires, road conditions, gross vehicle weight, and all the other things I'm not thinking of right now.

    I've never bottomed out my suspension, but I'm a little guy who likes to keep both tires connected to the ground and I try to ride in such a way that the front end is light when I hit obstacles and heavy when I'm in turns. If there is an obstacle in a turn, I slow down. Not terribly complicated.

    I suggest Mitas E09 tires. The carcass of the tire is STIFF. My hands are still sore.
    #61
  2. SgtDuster

    SgtDuster Long timer

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    Now we're talking. :wink:
    #62
  3. Dirsuper

    Dirsuper Adventurer

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    Cool! Thanks.
    #63
  4. Lion BR

    Lion BR I'd rather be riding

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    Looking at the pictures, the narrow and sharp angle of the bend on the wheel (front wheel), and the corresponding narrow impact marking on the tires (front and back wheels), I would say your tires were very under-inflated. No rim would survive that type of impact when the tire does not provide any cushion.
    #64
  5. craftycoder

    craftycoder Motobrain PDU

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    I don't see the "narrow impact marking", can you highlight it for us?
    #65
  6. GB

    GB . Administrator

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    It sucks that your wheel is bent, and especially that you said you weren't riding the bike hard. When I first read this after you first posted it, I wondered if your tires were under inflated. Your pics above show clearly that they were under inflated hence the damage. Even the rims supplied by Woody's will bend if the appropriate tire pressure isn't observed.

    You could blame the dealer, but ultimately, it's your mistake for not checking your tire pressure prior to your ride. Sucks big time, especially that the bike is brand new.. :(:

    Before you spend a lot of money on new wheels from Woody's, I'd get him to fix the stock ones and keep an eye on tire pressure. If you ride hard on dirt, then consider upgrading them at that time. Woody knows wheels and he'll get yours fixed up properly.

    p.s. One time I picked up my bike from dealer service and my tires were inflated to 50 psi! :eek1 I called them, they looked into it and sure enough their gauge was defective.
    #66
  7. raider

    raider Big red dog

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    Mine have "DID" etched into them.
    #67
  8. WOLVERINE

    WOLVERINE Keep her pinned!

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    Nope,...I was running Mitas E09 Dakars with Over 30psi pressure and they still bent. I never aired down before and now I run even higher pressure like 36 front/38 rear. It bounces around a little more but oh well..

    I used my adjustable wrench to interum fix mine. Works so far...:D

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    Mine came from the dealer looking like this with the tube pinched in the wheel...

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    #68
  9. raider

    raider Big red dog

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    You think you're steamed... my old man just shat the diesel injectors in his Nissan truck. Nissan say "bad fuel, no warranty". Shell say "prove it". Up for $6000 for new injectors, pumps and labour.

    Basically, I'm sorry you're having a bad experience with your 800GS, but it is a good bike. The reason there's so much lively discussion on this forum about "what bike" is because there just isn't a perfect, tough, light, agile, fuel efficient, long-range, sweet-handling pack mule out there. Every ADV bike has a compromise.

    A lot of people buying into the 800GS seem to be buying their first dirt tourer - either upgrading from an enduro, or making their first foray into the ADV world. These people have grossly unrealistic expectations as to what to expect - the 800GS is a travel bike, designed for touring Australia or riding to Africa.

    The glossy PR pics of some bloke leaping around an MX track on it don't make it a dirt bike, any more than Harley's choice of the Phillip Island MotoGP circuit to launch the new Rocker C in Australia makes that a track bike.

    Out of interest, if you'd hit a patch of loose sand, got into a tank-slapper, and high-sided it, would you be blaming BMW for the resulting damage?
    #69
  10. Dirsuper

    Dirsuper Adventurer

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    According to my trusty (I assume, I have three and they were all the same +/- 1.5 degrees) tire pressure gauge, the front is right between 35-36 and the rear is at 38. The manual recommends: Front 31.9, one-up at 68 degrees. 36.3 two-up or load. Rear, 36.3 one up at 68 degrees. 42.1 two-up or load. It is 73 degrees here, and I am at 1470 ft. above sea level. I weigh ~200 pounds.

    Would I blame BMW for damage caused by me wrecking the bike? Come on bro, I don't see the relationship.

    Whatever, my main goal was to see if anyone else had experienced this issue and was successful in getting it taken care of by the manufacturer. Obviously not. Lesson learned. Lesson to be passed on to others.

    The suggestion to just get these repaired and.....I guess, avoid going off road is appreciated, but if that were the case I would have bought a different bike. I do believe that Woody's is the answer.

    I do appreciate everyone inspiring me to check the pressure on every tire I own.....I just need to hit the wheelbarrow and the kid's bike and I am good to go!
    #70
  11. guzzimike

    guzzimike Long timer

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    Some sense at last.
    I Picassoed the original front rim in about 4 places.
    At great expense to the managment I then replaced this with a 2.05" (or whatever the original is) Sun rim from Buchanans, drilled and laced up by Lightfoot Engineering in Melbourne.
    First ride on this new rim I hit a washout at an angle and bent this rim as well!
    There was no way I was spending another $600 so I took the tyre off and belted the rim back in shape with a FBH and a lump of wood.
    My call on it all -
    It's not BMW's fault that I bend rims
    The rims are not substandard, thry're too wide for off road use, my next front will be a 1.85", rear 18''x3.5 or so.
    The front suspension is too soft, it bottoms out and then something has to give, Wrap a cable tie around the staunchion, or just look at the wiped off dust, the suspension is bottomed out when 20mm or so of the staunchion is still sticking out of the slider.
    I am only 75kg 59yrs old, and no Crusty Demon, but I still bottomed out that front end, heaps.
    FWIW I replaced the stock front end with the Bitubo kit and in my opinion it is too hard.
    Still pondering my next move.
    #71
  12. HWSNBN

    HWSNBN Banned

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    Daido is the good stuff usually. I thought they were sourcing Behr's famous butter soft rims as they have for years...

    The alloy Behr uses is complete shit, some 5000 series stuff I'd guess... a step above patio furniture. DID is usually 6000 or 7000 stuff from what I've seen. In fact I'd rate DID among the best rims I've ever laced up and ran through the evilest rocks. I've bent Excels but not yet a DID. I'm running a narrow set on my 950 KTM after benting the stock Behrs into squares:lol3 and the things are proving super tough.

    So I think the issues ya'll are having with these things probably is really similar to the problem we have in Orange Crush. Its a WIDE rim speced to work with a low profile street tire. Street tires are made to flex little in curves hence a short sidewall. Since the sidewalls short, they need wide rims. Dirt rims are narrow so they can withstand impacts. Less cantilever from the spokes means a stronger rim. Dirt tires are made with a much taller sidewall and bowed inward to flex and protect the rim. So they're two totally different concepts. Compromise DS rims are pretty much street rims made in larger diameters and DS tires tend to be street tires with a more open tread. Even TKCs are low profile rounded over tread street tires at their core, only with knobs. What we have here is a wheelset thats 50/50. 50% as good on the street as street wheels and 50% as good as dirt rims on dirt.:D

    I replaced my rims with 1.85-21 front and a 2.5-18 on the rear of my ADV and haven't looked back. Nowhere near as good a bike now for riding twisties but wtf, I don't care. Way more solid in dirt and it has also opened up a world of cheap tires that'll fit. Hard riding as the OP is obviously doing, this is the way he's gonna have to go riding the way he's going imho.

    Your only an hours ride from Buchanan's in Azusa. I'd take it there and have'em swap those rims out for a set of narrow Excels or DIDs iffin it were me.
    #72
  13. raider

    raider Big red dog

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    I make no representation about what most bikes come with, just what I've got. Mine also came with Anakees and a CZ chain, whereas all the other bikes from the same batch my dealer ordered had Battlewings and RK chains. Maybe it's an ex-press bike with the odo re-wound, maybe the unloved runt of a previous litter.
    #73
  14. rawn869

    rawn869 Adventurer

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    :ear
    #74
  15. Dirsuper

    Dirsuper Adventurer

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    There she is, ready for wheels to get shipped off to Woody's......damn am I pissed!! Ruined a planned trip to San Francisco this weekend!!

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    #75
  16. Y E T I

    Y E T I Unpossible

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    Pull the sprocket off the rear wheel. No sense in paying for it to fly to Colorado when it won't take pictures or send you a post card. :D
    #76
  17. craftycoder

    craftycoder Motobrain PDU

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    Have him check your bearing crush while he has them. It's a good time to have that problem repaired (if you are so afflicted). I think some 2010 bikes still have the problem.
    #77
  18. fred flintstone

    fred flintstone Been here awhile

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    Well then I guess they weren't underinflated...for whatever reason what you were doing with the bike relative to the surface you were doing it on was too much for the stock rims.
    #78
  19. Edgy Drifter

    Edgy Drifter Err...what?

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    That's strange, I've beat the hell out of mine, rocks, ruts, roots, some jumping, and I haven't bent my rims, and I'm a fat bastard. but then I haven't had any of the other problems reported on various threads on ADV, bad ABS, bad bearings, rough starting/idling. My German Vonderbikken is working out fine so far. 8500 miles in approximately 7 months of riding, just saying. Now that I've jinxed my bike I'll go back to lurking...:D
    #79
  20. kkug

    kkug Been here awhile

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    With those air pressure the rims should have held up. Try to pick a better line threw the rocks.

    I had a 04 KTM 950 and a lot of people bent rims. I instaled stifer springs and fixed the forks almost right away. I sold it with 35K on it and never had any bent rims.

    But I lowered the air one time on my 800 and glanced off a rock and have a dent like yours. But I don,t go lower anymore ( 23 PSI ) and haven,t gotten any new dents. Never got a dent on the rear.

    But I might put on a new wheel for a summer trip . (TAT )

    Now that you have the wheels off is a good time to stifen up the springs. !!!
    #80