Lowering a CRF250L Help/Idea

Discussion in 'Thumpers' started by ggamster, Aug 15, 2012.

  1. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    I have an idea of how to lower the crf250L and wanted to see if any of you see a problem with my idea.
    [​IMG]
    As you can see in the picture there is quite a lot of room between the bottom of the shock and the bolt passing through the steel u-shaped bottom of the shock. To lower the bike could I simply drill a hole, say, an inch above the current bolt location and lower the bike?:ear The distance from the bottom of the shock to the current bolt hole looks to be about 1.75". Let me know what you think
    #1
  2. Parigi

    Parigi Hoinar

    Joined:
    Dec 23, 2002
    Oddometer:
    360
    Location:
    Calgary, Canada
    First you need to show us more pictures and details of the bike, so we can make a sound judgement :deal
    #2
  3. MrPulldown

    MrPulldown Long timer

    Joined:
    Aug 18, 2009
    Oddometer:
    5,885
    Location:
    Truckee
    Have you already turned down the preload and dropped the forks in the triples? I'd start there.

    Drilling a hole and remounting the shock might have interferance issues. You will also limit your suspension travel.

    The CFR250L is already one of the lower bikes. I feel that the proper height of a dirt/dual sport bike is to be able to tippie toe it at rest. Flat footing should only be for beginer beginers. Like the first month of trail riding.
    #3
  4. freetors

    freetors Long timer

    Joined:
    Feb 20, 2011
    Oddometer:
    1,114
    Location:
    Collinsville, OK
    Sure you could do that. I would suggest measuring the suspension's motion ratio first to see how much lowering effect it would have. I wouldn't be surprised if a 1 inch difference at the clevice lowers it ~3 inches or so.
    #4
  5. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    [​IMG]
    [​IMG]
    [​IMG]
    #5
  6. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    The CFR250L is already one of the lower bikes. I feel that the proper height of a dirt/dual sport bike is to be able to tippie toe it at rest. Flat footing should only be for beginer beginers. Like the first month of trail riding.[/QUOTE]

    Although I agree fully this is for my lovely wife and I want her to feel like she is in control. With her being a newer rider and having a 29" inseam. If I have to lower the bike to make her feel sure of herself I will.
    #6
  7. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    That is what I was thinking. I can't see any interference issues but i need to work the suspension with some straps to see if anything could hit. The great part about this idea is it would be easy to raise right back up as she gets comfortable.
    #7
  8. techforlife

    techforlife CDI REPAIR

    Joined:
    Sep 21, 2008
    Oddometer:
    4,571
    Location:
    Moncton,New Brunswick
    Or..........you could wait a bit,,or see if Kouba knows if they have the proper lowering link to fit this new bike,drilling out the shock mount,i don`t know,,i can`t see that being a good thing..

    B
    #8
  9. dhally

    dhally Hammerhead

    Joined:
    Feb 18, 2006
    Oddometer:
    3,546
    Location:
    Kennewick, WA
    Drilling a new hole would be similar to adjusting the bottom mount of the shock on the WR250R, which many people do. The only problem I can see is the new hole would need to be far enough away from the old hole to leave some "meat." It might drop the bike more than you want.

    I can't tell from the picture, but is the lower bracket bolted to the bottom of the shock? If so, you might be able to have a shorter bracket fabricated and just bolt it on. A sheet metal shop should be able to bend one up no problem.
    #9
  10. Navin

    Navin Long timer

    Joined:
    Sep 22, 2009
    Oddometer:
    13,794
    I'd back off the preload adjuster all the way before trying this idea. It has a threaded collar adjuster, right? Unscrew it all the way and maybe add a strap to keep it from lifting off the spring. She will just be riding in a field to train? I'd not recommend jumping or such with it like that. You may have enough effect by just running the preload to zero on the spring too.

    Drilling holes will just weaken it for when you need it taller again. Avoid unless necessary and maybe weld it back up when done?
    #10
  11. MrPulldown

    MrPulldown Long timer

    Joined:
    Aug 18, 2009
    Oddometer:
    5,885
    Location:
    Truckee
    #11
  12. RED1

    RED1 Been here awhile

    Joined:
    Sep 10, 2007
    Oddometer:
    493
    Location:
    The High Country, Vic, OZ
    There is a genuine honda lowering kit Part No 08R70-KZZ-920, the RRP in Australia is $2,112 !, I don't know what is in it or how low it makes the bike as we only got the info yesterday, it must be comprehensive!
    #12
  13. freetors

    freetors Long timer

    Joined:
    Feb 20, 2011
    Oddometer:
    1,114
    Location:
    Collinsville, OK
    I would wait just a while to see if they make a lowering link. The WR250R has a very similar one piece link. They make a "Yamalink" that lowers it some and it's about $150, but very nice from what I understand.
    #13
  14. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    I think you are missing the point.

    First: Preload is not intended to set the ride height. I is to set sag. so you stay in the correct operating range of the stroke of the shock. Yes this in turn lowers the bike but if my wife was short and 200 lbs it would make the bike ride honorable if I were to lower the bike by using the preload. As it so happens she is 110 lbs so I will be purchasing new springs for her weight.

    Second. If I want to buy a lower link I will but I am trying to see what can be done with little labor and $$$.
    #14
  15. AZ TOM

    AZ TOM Long timer

    Joined:
    Oct 21, 2008
    Oddometer:
    5,580
    Location:
    Prescott AZ
    Ground clearence will be a lot less.
    #15
  16. Kawidad

    Kawidad Long timer

    Joined:
    Jul 9, 2005
    Oddometer:
    6,146
    Location:
    Central Coast, Cal
    A machine shop should be able to make lowering links for not a lot of money. I've seen homemade ones that work just fine, not that I recommend going that route.
    #16
  17. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    Well enough talking about it. Today is the day i attempt this. My wife apparently has an inseam of 27, not the 29" that i thought. The bike with the forks lowered all the way has a seat height of 34.5". For those stating to reduce the preload. The dike comes with it as low as it can go and only has 1"of sag with 190lbs on it. My wife at 110 doesn't get any sag. I will report back with results.
    #17
  18. tdvt

    tdvt Been here awhile

    Joined:
    Jul 19, 2012
    Oddometer:
    219
    Location:
    NEK Vermont
    29 is how old she is & how old she WILL be for the foreseeable future.
    #18
  19. ggamster

    ggamster Been here awhile

    Joined:
    Oct 20, 2011
    Oddometer:
    242
    Location:
    Paducah, Kentucky
    Just finished everything is done including the kickstand waiting on the paint to dry and now I'm going to take it for a test ride. This was incredibly easy.
    #19
  20. Navin

    Navin Long timer

    Joined:
    Sep 22, 2009
    Oddometer:
    13,794
    1" of race sag means she needs a much lighter spring. There are many ways to do a job but they all fall into two specific catagories, the right way and the wrong way. I hope you didn't/don't do anything you can't easily undo.

    Good luck to you with this, hopefully it increases the ratio to give a softer ride too. If this will be the bike she really rides, invest in the right rate spring. I can't imagine it being much fun to ride at her weight with that spring.
    #20