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| *Vultures Knob>>>Cycling |
Why do BMXs have only one gear and weigh so much? Can I put more cogs on it please? |
Why do BMXs have only one gear and weigh so much? Can I put more cogs on it please? BMX bikes have one gear because they are intended for short duration efforts or stunt riding. In these cases, a system of gears doesn't help and in most cases it's just something else to break. The reason for the weight is that they have to be tough to handle the abuse of jumping and crashing. A lightweight frame and wheels will fold or beak under this type of stress. You often find BMX stunt wheels with 48 spokes. Retrofitting a derailleur system on a single speed bike isn't impossible, but probably isn't worth the time, money, and hassle. You would need: a new rear wheel with a mutli-cog freewheel or freehub and cassette. a bolt-on derailleur hanger a rear derailleur cableing a shifter mechanism The time and experience to put it all together and make it work. Your better off buying a geared bike, at least then when you break it by trying bmx stunts, you can get replacement parts. It shouldn't way very much........? Unless is very old. I can lift mine up with too fingers!!?? BMX's are designed for tricks and not long journeys travelling uphill......buy a mountain bike if you want more cogs and gears!!!!!!!! Lower quality bikes will weigh more. They have one gear because they are intended for tricks etc. that's there purpose. They're certainly not intended to ride for miles. Buy a bike for what you need. Don't try putting gears on a BMX. I wouldn't go so far as to say it's impossible, but it will be very difficult and is definitely not normal. Besides, you don't need gears on a BMX. But you may find that the gear ratio on the bike is not quite to your liking, and what you can certainly do is to change the sprocket on the back wheel to give you a different gear ratio. A smaller cog for a higher gear, and a bigger one for a lower gear. Perhaps you could give one of those a try. bmx bikes only have one gear because of weight. BMX bikes usually weigh around 25-30 pounds because you need momentum when you're doing tricks and such. there are specific gear ratios that are implemented on bmx bikes such as a 25 tooth sprocket with a 9 tooth driver, 28/10, 30/11, 33/12, 36/13, 39/14, 44/16. if you tweek one or the other, you'll either be pedaling really hard like you're going uphill or you'll be pedaling but not going anywhere. and no, you cannot put more than one cog on a bmx bike. riding for a whille if the gears too high get a smaller front chainwheel, then it's easier to edal, and vice-versa. |
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