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    Gravity racer - Calling all daredevils!

    Thanks SIN. What is a good headtube angle? Since I stretched the bike at the pivot, I can decrease rake by raising the bike up.
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    Gravity racer - Calling all daredevils!

    It is a straight springer fork, but I flipped the bracket it is on to rake it further. I think just putting a standard fork on will help. Righting the frame would be a pain at this point, and the wheelbase would become a lot shorter. I'll give that fork a ride first, and then try righting it if...
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    Gravity racer - Calling all daredevils!

    Thanks Eddie. I don't have a seat, I have kneelers, but I don't think i could balance without hands. My bike has a raked out springer fork. I was thinking about swapping for a bmx, but I may look for a road fork. The bike caught wobbles anytime the front tire wasn't pointed straight. Since the...
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    Gravity racer - Calling all daredevils!

    Sorry about that. I meant to do a short ride, assess the effectiveness of my bungee dampeners and than come back and do a second video. I felt confident and went the whole way. The steering was shaky anytime it wasn't pointed straight, and it got away from me on that last curve. While my buddy...
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    Gravity racer - Calling all daredevils!

    http://www.youtube.com/watch?v=L1duqc1fDwM Hit 35 or so on my shakedown ride. I also highsided it at the end. Lots of fun. I will definitely repair, modify and ride it again.
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    Gravity racer - Calling all daredevils!

    Lets make it Halloween. That should be more than enough time.
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    Gravity racer - Calling all daredevils!

    I'm all in favor of an extention, since no one has shown any proof of a run yet. I meant to today but worked 14 hours instead. How long should we go?
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    Gravity racer - Calling all daredevils!

    Careful out there guys. I should be getting leathers and a helmet this week, but I was feeling bulletproof and ran my bike down the driveway with shorts on. Now I am missing some skin on one of my knees.
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    Gravity racer - Calling all daredevils!

    I have brakes! Tomorrow I have to work out better pads for the kneelers, a seat and weight. I hope to do some real test rides tomorrow night.
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    Gravity racer - Calling all daredevils!

    Witchita is a long haul from here, but it would be fun to race a fellow member. Hmmm...
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    Gravity racer - Calling all daredevils!

    I just got the tires on and kneelers built. I took it for a ride down the driveway brakeless. Oh boy it is gonna be fast! The steering is twitchy due to the rake. I also scrape my butt on the tire a lot. I may have to make a seat. 35 won't be a problem, not doing 80 or crashing hard might be tricky.
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    Gravity racer - Calling all daredevils!

    That's basically what I am doing. I took a kids full suspension MTB and flipped it, removed the shock and will be replacing it with a couple of heim joints and a turnbuckle. I can extend it until the seat post drags the ground.
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    Gravity racer - Calling all daredevils!

    Schwalbe Marathons are the standard. I am buying Primo Comets.
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    Gravity racer - Calling all daredevils!

    I'm impressed that you are running hills already. I don't have welding gear, so I am waiting on heim joints to come in the mail. Then tires and I can start fitting the brakes and cables.
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    Gravity racer - Calling all daredevils!

    Congrats on getting it rolling! I bet with some high pressure tires and some weight you'd really be cooking.
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    Gravity racer - Calling all daredevils!

    With the tires that come in fractions, they don't fit because the diameter is wrong. They are meant for taller rims than bmx 20".
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    Gravity racer - Calling all daredevils!

    Not sure anyone plans on buying tires for this, but if you do, tires that come in standard increments (20X1 1/8) DO NOT FIT bmx wheels. I learned the hard way.
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    Gravity racer - Calling all daredevils!

    It seems to me it down to where you can put your weight. If your riding position is one that lets you sit on the seat comfortably, then you can put your feet on the pegs and hang your kneesliders out around corners (no kneeler required). If you build a solid kneeler, you put your feet over the...
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    Gravity racer - Calling all daredevils!

    I would think the OCC tire would be a slow roller. How much pressure is it rated for?
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