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  1. #51
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    road mix has some 3/4 or less in it.

  2. #52
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    Are you Kat Sweet?

  3. #53
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    Quote Originally Posted by the_owl
    Are you Kat Sweet?
    I wish! No, though I know her and she's great.
    "Careful. We don't want to learn from this." -- Calvin & Hobbes

  4. #54
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    Great job!

    I have a small yard like that. Wish I could do the same but all my elderly neighbors would have an absolute fit. Everybody has to have an opinion even when I plant shrubs or trees on my property.

  5. #55
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    You can do what you want on your property! Who knows, the neighbors might end up thinking it's cool! Last night ended up being an impromptu neighborhood gathering for us, with what seemed like half the neighbors magically converging in our yard! They love it. I think people tend to be in favor of anything that has the sole purpose of fun.

    The track is pimpy now! The guys made rollers bigger and more sine wavy, the berms taller, and it's just killer now. Here are some pics from last night, and a video. The one 180 berm still needs to firm up a bit, but other than that it's running just about perfect.













    And a video:

    http://s204.photobucket.com/albums/b...t=MVI_1592.mp4
    "Careful. We don't want to learn from this." -- Calvin & Hobbes

  6. #56
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    I'm beginning to see that the thing that is so cool about a pump track is that anyone can have fun on it. Our neighbor across the street is over 50 and was wearing clogs and hadn't ridden a bike in a while, and she gave it a shot. Our next door neighbor was in pajamas, with no off-road bike experience, and ended up being one of the best riders there. The guy who lives next to him is also over 50 and did several laps, plus another neighbor from 2 houses north put in a nice effort, and me and my partner who aren't very good at it yet, and then my 4 builders who killed it of course... we had every skill level represented and every single person found it both fun and challenging. Even the little kids had fun just running madly around it! I'm starting to think everyone should have a pump track. Imagine how neighborhoods would be brought together, how much fitter suburban America would be, how much more fun it would be for families to ride bikes together in their back yard on a summer evening instead of watching TV or surfing the net. This thing has turned out cooler than I even imagined. Anyone thinking about putting one in should totally do it.
    "Careful. We don't want to learn from this." -- Calvin & Hobbes

  7. #57
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    i want to build one, but i have a feeling my mom wont like the idea of me building it on our nice green lawn...
    2009 Jamis Trail X2
    2002 Raleigh Mountain Scout
    2008 Trek fuel ex7

  8. #58
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    Quote Originally Posted by henry9419
    i want to build one, but i have a feeling my mom wont like the idea of me building it on our nice green lawn...
    She must not have to cut the grass....
    Quote Originally Posted by ridelikeafatkid
    "MOMMY, I WANT TO RIDE LIKE THAT FAT KID!" true story.

  9. #59
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    Cool! Subscribing.

  10. #60
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    Nice job on it and great job on getting the neighbors into it. Makes me want to build one.

  11. #61
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    nice! we have a 35x75' one in my brother's backyard but we use it for RC cars. maybe i should try riding a bike on it.
    Diamondback Assault dirt jumper, hayes, shimano, saint, etc...
    Trailhound Smokers, competition BBQ team.

  12. #62
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    Quote Originally Posted by trboxman
    She must not have to cut the grass....
    nope me and my dad do...but she thinks the grass is pretty...or something like that...
    2009 Jamis Trail X2
    2002 Raleigh Mountain Scout
    2008 Trek fuel ex7

  13. #63
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    Quote Originally Posted by henry9419
    nope me and my dad do...but she thinks the grass is pretty...or something like that...

    I bet she'd feel differently if she had to cut it...
    Quote Originally Posted by ridelikeafatkid
    "MOMMY, I WANT TO RIDE LIKE THAT FAT KID!" true story.

  14. #64
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    yeah....and if she found out how much fun mountain bikes are...she rides a street bike...on a trainer in front of the tv...gotta get some DH helmet cam footage for her to watch while on the trainer...
    2009 Jamis Trail X2
    2002 Raleigh Mountain Scout
    2008 Trek fuel ex7

  15. #65
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    Quote Originally Posted by A girl from Seattle
    I'm beginning to see that the thing that is so cool about a pump track is that anyone can have fun on it. Our neighbor across the street is over 50 and was wearing clogs and hadn't ridden a bike in a while, and she gave it a shot. Our next door neighbor was in pajamas, with no off-road bike experience, and ended up being one of the best riders there. The guy who lives next to him is also over 50 and did several laps, plus another neighbor from 2 houses north put in a nice effort, and me and my partner who aren't very good at it yet, and then my 4 builders who killed it of course... we had every skill level represented and every single person found it both fun and challenging. Even the little kids had fun just running madly around it! I'm starting to think everyone should have a pump track. Imagine how neighborhoods would be brought together, how much fitter suburban America would be, how much more fun it would be for families to ride bikes together in their back yard on a summer evening instead of watching TV or surfing the net. This thing has turned out cooler than I even imagined. Anyone thinking about putting one in should totally do it.
    Awesome! We just bought our place last September. A large garden is going in, but we'd still have a good bit of room left... Hell, between a garden and pumptrack/"skills area" we'd have far less work to do. Well, just as much, but going towards fun stuff, or things to eat.
    Florence Nightingale's Stormtrooper

  16. #66
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    My Gosh....that looks wonderful Those guys did a great job !
    I'd rather be riding than healing, body armor is your friend !

  17. #67
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    any videos yet?

  18. #68
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    Quote Originally Posted by jojotherider
    any videos yet?
    There's one video at the end of her posted photos above. But more videos would be awesome

  19. #69
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    Thanks everyone! There is a video at the end of post #55 and I will try to get another one soon! The problem we've been having here in Seattle is that it's been raining almost nonstop for a couple of weeks now. We did get a couple of good dry days and the track dried out like concrete as we'd hoped, if you can tell in this pic:



    After that I felt I could get away with taking the tarps off, so I did. But I was awfully nervous when it rained hard today, wondering what I would come home to! Here is what I found:



    It's perfect! The rain actually helped its condition, erasing some of the cracks and beat-down appearance. Most importantly, it didn't get soft or slippery, which is what I was worried about. So I'm pretty happy about the whole thing. The guys are going to come back one more time to put a layer of dirt over everything, and then maintenance should be pretty straightforward from there on out.

    I learned you can do a test to find your soil composition. Soil is composed of sand, silt, and clay (with possible organic material as well). To find out how much of each you have, you put soil and water in a jar, shake it, and let it sit for a day or two. When it settles, the bigger/heavier sand particles are on the bottom, the silt is in the middle, and the clay is on top. Here is what mine looks like:



    In this pic, the top layer is water, then clay, then sand at the bottom. So our soil appears to be about 65-70% sand and only 30-35% clay. I would have guessed the opposite since it seems like there is a ton of clay in it! No silt or organic material that I can see. Very interesting (to me at least, but I'm nerdy). I guess a little clay goes a long way! I think our dirt is pretty perfect for our application.
    "Careful. We don't want to learn from this." -- Calvin & Hobbes

  20. #70
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    Cool! Looks like you got yourself some perfect dirt! Mind if I ask a couple questions?

    -Where did you buy/get it?
    -Do they have different compositions of dirt for sale?
    -How much did it cost?
    -How many dumptruck loads or cubic yards?


    Thanks!

  21. #71
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    -Where did you buy/get it?
    lots of local places will sell dirt, call around for pricing. I searched for top soil

    -Do they have different compositions of dirt for sale?
    yes, if you dont know what you are buying over the phone ask to stop over so you can inspect their dirt. my dirt guy had probably 6 different types of dirt he sold, fill, top soil, screened, etc.. once you are on site, make balls of it in your hand, you will know the good stuff when you find it. my guy calls it 'gold clay', but was completely confused on what i wanted it for. told me no one ever buys it and had to rip it out of the ground

    -How much did it cost?
    dirt is cheap, it is the delivery fee... $100/10yards delivered is what I paid. Could have got it cheaper if I called around more but I cant complain.

    -How many dumptruck loads or cubic yards?
    I did 10 yards at a time as I was working solo. 30 yards total.
    this build was 28 yards, two loads of 14

    -how much dirt will you need?
    more than you think! you will find a use for it!

    -is it worth it?
    YEAH!

  22. #72
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    Very nice!! Looks like a lot of fun in the backyard! That's one of the things on my to-do list when I buy my new house.

    I might try to work some wood into it as well.

  23. #73
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    I would echo most of DL1030's responses above.

    -Where did you buy/get it? In the Seattle area, we got ours at Gerrard Recycling. Another place, Pacific Topsoils I think, said they had a 50/50 clay/sand mix they thought would work well. You have to call around and tell them what you want. If you say topsoil, they may be misled into thinking you want a garden-type soil. You don't want too much organic material. I hear baseball diamond clay is also good, but expensive.

    -Do they have different compositions of dirt for sale? When evaluating different soils, I agree with DL1030 that the ball test is a good one. If you take slightly damp soil and close it in your hand, it should remain in a cohesive ball when you let go. If it crumbles apart, find something else.

    -How much did it cost? $5 per cubic yard for the dirt plus several hundred bucks for delivery.

    -How many dumptruck loads or cubic yards? We used 2 dump truck loads. A standard dump truck load is 12 CY but we think we had more like 14 CY per load, so ~28 CY total. Of that, there is still perhaps 5 CY left. Some of that will go on the track next week and the rest will be a "borrow pile" for future repairs/changes.
    "Careful. We don't want to learn from this." -- Calvin & Hobbes

  24. #74
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    Quote Originally Posted by GDubT
    I might try to work some wood into it as well.
    That would be sweet, I seriously considered making one of the berms into a split-cedar wall ride!
    "Careful. We don't want to learn from this." -- Calvin & Hobbes

  25. #75
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    Backyard pump tracks are always sweet! Some advice: if you make your berms 2 to 3 times larger and make your rollers not so peaky but more rounded the track will flow much better for you and you'll be able to carry much more speed. You've got a great start, looks fun.

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