Recent content by bikeguy
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Will NaOH dissolve aluminum without damaging fiberglass?
I have a 6063 aluminun tube with a fiberglass/epoxy outer wrap. Is there an reasonably fast and effective way to chemically dissolve the aluminum tube, without seriously degrading the fiberglass outer shell? Appreciate any suggestions. -
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New bike - can't ride no-hands anymore?
Your first sentence refers to using the "bars", so you are speaking from a typical "hands on" view point - that's outside the specific topic here, I believe.- bikeguy
- Post #20
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
Who, specifically, can ride a recumbent "no-hands", with the ease of a mountain bike? And what model recumbent are you refering? I am riding a Rans Stratus XP. As I stated before, I can do for a very short distance too. However, I don't think 20 or 30 feet of turn-less riding proves much, except...- bikeguy
- Post #19
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
Hummmm? hadn't thought of that. Very interesting! Could you please elaborate in greater detail? Come to think of it, on my mountain bike (riding no-hands), I balance by pivoting my hips laterally (which tilts the frame, so trail steers the bike). On the recumbent, my feet are parallel to the...- bikeguy
- Post #15
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
Although not as well as my mountain bike, I can ride a kid's 20" BMX bike hands-free and it posses much smaller tires than the recumbent.- bikeguy
- Post #14
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
Yes. It is usually referred to as "rake" or "fork offset". I measured the steer tube (axis) angle at *59 degrees* and the trail at 1.5". As i stated before, I can walk beside the bike, while balancing and pushing it. It responds exactly like a regular upright bike, in that, when I tilt the...- bikeguy
- Post #13
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
Tried that, but same results. I can only ride about 20 feet or so, in a straight line, and even that feels dangerous. Again, the recumbent's handling and steering feels great, so I don't suspect design issues or malfunctions. It just feels like I'm learning to walk all over again...- bikeguy
- Post #7
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
The seat height is about 20". Which lower than a regular bike. That's what I suspect, but why is that? I can walk beside the recumbent and steer it just fine, via frame tilting by holding on to the seat back (like a regular bike).- bikeguy
- Post #6
- Forum: Other Physics Topics
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New bike - can't ride no-hands anymore?
Just bought a new recumbent bicycle - full lawn chair type seat and pedals directly forward, with legs now horizontal. Tried no-hands riding, but failed repeadedly. The steering seems fine, just can't seem to balance this critter for some unkown reason, like i can on my mountain. The...- bikeguy
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- Replies: 24
- Forum: Other Physics Topics