Motorcycles even still had pedals for the first decade or so of their existence. Now that we have that little primer out of the way, let's talk about motorcycle suspensions. The earliest motorcycles were little more than bicycles with little engines clipped to the frames, and early motorcycle engineering was more like bicycle engineering. Note the standard, non-sprung bicycle forks. This 1901 Indian Camelback Single is a bicycle in all but name. The tire stays in contact with the road so you can steer, stop, or speed up. The rider feels the bump but the energy is mostly absorbed by the springs and does not jar your fillings out. When the tire rides over the top of the bump, the springs magically push it down again, no need to wait for gravity. The springs compress as the tire hits, storing up the energy so the tire can follow the shape of the bump. Also, landing is a bit hard on the spine and kidneys.Ī vehicle with suspension can absorb the bump and keep going while maintaining control. Cool, right? The problem is, with your tires off the ground you cannot stop, steer, or speed up very well. It continues in the air until gravity pulls it back down. If there is enough forward energy for the vehicle to pass over the bump, it will be deflected into the air.
How to make a girder front end for a bicycle driver#
If there is not enough forward inertia to push over the bump, the vehicle stops instantly and the rider or driver gets thrown off. When that vehicle hits a bump only one of two things can happen-it either stops dead or keeps going. Imagine vehicle with no suspension at all, like a skateboard. MOTORCYCLE: The Basics: Modern Motorcycle Suspensionīeyond the obvious comfort value, a suspension’s most important job is to keep the tire in contact with the road.
How engineers control and minimize the effect of that bump is one of the biggest challenges in motorcycle design. Instead of a pretty tame old-person dance, it’s an obstruction in the road that jars your entire bike and body when you slam over it. For motorcyclists though, the bump is something completely different. Videos exist, I recommend that you do not watch them. You and your partner just stood beside one another and bumped hips while Parliament-Funkadelic laid down the beat. It was pretty simple as 70s-era dances went. and will gladly meet up with somone in the area.What about the bump? In 1976, yours truly was in seventh grade and The Bump was the most popular dance around. Its been sitting around in my shop so it needs to go. Pretty sure this would work good on a Hardcore II type setup but no guarantees. Gambler, when they were in business, quoted me over 2000 dollars to build me one just like it and wait was several months so I went another direction on my chopper. I actually had to buy the whole roller just to get this front end. I rode the bike this was originally on and it rode great. Has adjustable progressive suspension shock/.spring and rides functions great. Its very nice but like I said not perfect.
Its very presentable as is but trees have a little bit of bubbling in the chrome and a small amount of surface rust on the insde of one leg where it attaches to the tree. Structurally its perfect no dents or bends. Its in really good shape but not perfect chrome wise. Was originally on a santee frame 6up 4 out. 7" between trees.7" between the legs.has a 3/4" axle and 1" stem. 40" from bottom of top tree to axle.32" from bottom of lower tree to. I had it for a couple of years and doesnt look like I'm ever going to use it so though somebody here may want it.
I have a really nice Gambler Girder front end for sale.
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