Bike Weight
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Bike Weight
Is the fixed gear bike weight really that important? If im a beginner and has only 500$ mark in terms the weight of my bike that Ill be buying shouldn't it have like a weight limit example dont buy fixies 25 pounds higher something like that? and frame wise? material? disadvantage and disadvantage of having a chromoly or hi-ten steel? Stuffs like that.
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It was a serious question. You get people who are carrying their bikes up 4 flights of stairs and for them a 17 lb. bike is way better than a 24 lb. bike. Most of the difference you'll notice in bike weight is in rapid acceleration and not really as much in dealing with hills. Most people find that the weight in the wheels makes a bigger difference than the weight in the frame. Once you get to a chromoly frame the comparative advantage of lighter materials is less because steel can give a smoother ride. There aren't a whole lot of fixed gear weight weenies though. I'm not sure why that is.
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It was a serious question. You get people who are carrying their bikes up 4 flights of stairs and for them a 17 lb. bike is way better than a 24 lb. bike. Most of the difference you'll notice in bike weight is in rapid acceleration and not really as much in dealing with hills. Most people find that the weight in the wheels makes a bigger difference than the weight in the frame. Once you get to a chromoly frame the comparative advantage of lighter materials is less because steel can give a smoother ride. There aren't a whole lot of fixed gear weight weenies though. I'm not sure why that is.
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It was a serious question. You get people who are carrying their bikes up 4 flights of stairs and for them a 17 lb. bike is way better than a 24 lb. bike. Most of the difference you'll notice in bike weight is in rapid acceleration and not really as much in dealing with hills. Most people find that the weight in the wheels makes a bigger difference than the weight in the frame. Once you get to a chromoly frame the comparative advantage of lighter materials is less because steel can give a smoother ride. There aren't a whole lot of fixed gear weight weenies though. I'm not sure why that is.
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thats what i need to know man so steel is smoother ride? im like here in my home and i just want to ride like for exercise like theres a 10km park from my home that i want to go everyday for exercise and im not using much stairs if youre thinking about me carrying my bike all the time.
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My experience is that my 18.5 lb Carbon Fiber bike climbs about 5-10% faster than my ~ 21.5 lb double-butted steel bike, configured similarly, with me as the rider, depending upon the gradient I'm climbing. For anything other than climbing, the performance difference is negligible. That 5-10% difference in climbing performance translates to maybe a 2% speed difference overall on the amalgam of all the terrain that I ride.
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My experience is that my 18.5 lb Carbon Fiber bike climbs about 5-10% faster than my ~ 21.5 lb double-butted steel bike, configured similarly, with me as the rider, depending upon the gradient I'm climbing. For anything other than climbing, the performance difference is negligible. That 5-10% difference in climbing performance translates to maybe a 2% speed difference overall on the amalgam of all the terrain that I ride.
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In other words, Weight wienies are as such because they need that 2% edge in a race. For me, you, the OP, the lurker, and the government shill reading this weight isn't too much of an issue. I would love to have a sub 15lb beast; That being said all my bikes are 20-24 lbs.
*) They're both 105 groups, both 50/34 rings. The Surly has an 11-25 9sp, while the BMC has an 11-27(?) 10sp.
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I haven't weighed my home-built fixed gear bike, but I can feel how much weight came off with the derailleurs, gear cluster, rear brake, etc. Fixies are lighter by their nature. I also replaced steel wheels and handlebars to alloy. It still has a cottered steel crank, but the fixie is lighter than my fairly light geared bike. It's also faster because the drive train is simpler - less drag.
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I haven't weighed my home-built fixed gear bike, but I can feel how much weight came off with the derailleurs, gear cluster, rear brake, etc. Fixies are lighter by their nature. I also replaced steel wheels and handlebars to alloy. It still has a cottered steel crank, but the fixie is lighter than my fairly light geared bike. It's also faster because the drive train is simpler - less drag.
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My experience is that my 18.5 lb Carbon Fiber bike climbs about 5-10% faster than my ~ 21.5 lb double-butted steel bike, configured similarly, with me as the rider, depending upon the gradient I'm climbing. For anything other than climbing, the performance difference is negligible. That 5-10% difference in climbing performance translates to maybe a 2% speed difference overall on the amalgam of all the terrain that I ride.
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Hi, government shill checking in. (okay, government employee...) Anyway, I bought my Cross Check without much concern for its weight. It's heavy. I took a hundred pounds or so off of me, and that made a huge difference. I bought my BMC Teammachine SLR02 with a bit more consideration for weight. I can definitely tell the difference a couple pounds makes.(*). Of course, the idea of me winning any kind of race is laughable.
*) They're both 105 groups, both 50/34 rings. The Surly has an 11-25 9sp, while the BMC has an 11-27(?) 10sp.
*) They're both 105 groups, both 50/34 rings. The Surly has an 11-25 9sp, while the BMC has an 11-27(?) 10sp.
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As far as climbing is concerned, lighter is certainly better, but not to the point that the frame flexes noticeably, because if you climb standing up on the pedals, significant flex means loss of pedaling power that is not transferred to the wheels. In the case of my personal carbon fiber bike, it is not only a few pounds lighter than my steel bikes, it is also somewhat stiffer laterally - those two criteria combine to make it a more efficient climbing machine than my other two bikes - but I certainly have not done any rigorous analysis to determine how much of the benefit is from weight, vs. stiffness. but my personal belief is that it's mostly the weight difference, because while it's stiffer than my best steel bikes, they are also pretty stiff too.
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You said yerself that you are a "beginner". You aren't even gonna know the difference in an 18lb bike and a 25lb bike. Get a ****ing bike, and go ride it.
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The heavier the bike, the smoother the ride. My Dutch Azor weighs 50#, smooth riding, and is a b***h to life for mounting in my Feedback Sports bike repair stand. However, my 1992 Rockhopper isn't at all difficult to mount.