Disc wheel design contest!
12-01-07 | 10:25 AM
#51
Senior Member
Joined: Aug 2006
Posts: 1,891
Likes: 0
From: New York
Bikes: Makino (have the parts; not yet built), EAI Barekuckle, Unknown Japanese fixed conversion, Centurion Dave Scott Ironman road bike (frame), Secret project bike, 2007 Trek Madone 5.2, Cannondale Caad3 mountain bike
And just for the hell of it:
12-01-07 | 10:47 AM
#52
Where do you find the aluminum disk wheels like this one! I've been looking for so long.
__________________
Cat 3 // Dylan M Howell
Cat 3 // Dylan M Howell
12-01-07 | 11:48 AM
#54
Senior Member
Joined: Aug 2006
Posts: 1,891
Likes: 0
From: New York
Bikes: Makino (have the parts; not yet built), EAI Barekuckle, Unknown Japanese fixed conversion, Centurion Dave Scott Ironman road bike (frame), Secret project bike, 2007 Trek Madone 5.2, Cannondale Caad3 mountain bike
12-01-07 | 12:09 PM
#57
Thread Starter
It's an old photo
Joined: Aug 2006
Posts: 774
Likes: 0
From: Entropia
Bikes: Cannondale R500, Specialized Hardrock
It is a lot of weight, but the aerodynamic advantage is greater than the weight penalty.. that is, once you're up to speed. Accelerating is definitely harder. Remember that 90% of total resistance you encounter in normal conditions on a bike is due to wind drag. The other 10% is due to things like drivetrain efficiency and overcoming the bike's inertia. So you add a little bit of inertia, but cut the resistance by a significant amount. So it helps on the track and if you're doing time trials, but otherwise it probably sucks.
And I was really surprised at my bike's weight even with the rear.. it was about 18lbs with disc, and 13.7 without. And this is a steel frame too! So if I were to get a lightweight rear, I could probably get it down to 15.9 or so.
And you guys are probably right about the filler. I'm just nervous about sanding the carbon fiber's surface so the filler coat would need to be a little thick, which I assumed would add weight. But it probably depends on the material. I'll look into it, but I probably couldn't paint it until it warms up in the spring
Oh, and I really like the Nathan Fabian one.. I was thinking of doing that kinda stylizing to a photo of my face and putting it on. Intimidating glare + stylizing = propaganda.. hehe.
12-01-07 | 12:20 PM
#59
Sir Fallalot
Joined: Jul 2006
Posts: 5,288
Likes: 17
That includes a pretty beefy tire, solid axle, and surly fixxer w/cog. And it's really only like 4.3lbs. With a freehub, no tire and no cassette, and a hollow axle it's 2.8lbs according to Hed's site.
It is a lot of weight, but the aerodynamic advantage is greater than the weight penalty.. that is, once you're up to speed. Accelerating is definitely harder. Remember that 90% of total resistance you encounter in normal conditions on a bike is due to wind drag. The other 10% is due to things like drivetrain efficiency and overcoming the bike's inertia. So you add a little bit of inertia, but cut the resistance by a significant amount. So it helps on the track and if you're doing time trials, but otherwise it probably sucks.
And I was really surprised at my bike's weight even with the rear.. it was about 18lbs with disc, and 13.7 without. And this is a steel frame too! So if I were to get a lightweight rear, I could probably get it down to 15.9 or so.
And you guys are probably right about the filler. I'm just nervous about sanding the carbon fiber's surface so the filler coat would need to be a little thick, which I assumed would add weight. But it probably depends on the material. I'll look into it, but I probably couldn't paint it until it warms up in the spring
It is a lot of weight, but the aerodynamic advantage is greater than the weight penalty.. that is, once you're up to speed. Accelerating is definitely harder. Remember that 90% of total resistance you encounter in normal conditions on a bike is due to wind drag. The other 10% is due to things like drivetrain efficiency and overcoming the bike's inertia. So you add a little bit of inertia, but cut the resistance by a significant amount. So it helps on the track and if you're doing time trials, but otherwise it probably sucks.
And I was really surprised at my bike's weight even with the rear.. it was about 18lbs with disc, and 13.7 without. And this is a steel frame too! So if I were to get a lightweight rear, I could probably get it down to 15.9 or so.
And you guys are probably right about the filler. I'm just nervous about sanding the carbon fiber's surface so the filler coat would need to be a little thick, which I assumed would add weight. But it probably depends on the material. I'll look into it, but I probably couldn't paint it until it warms up in the spring
Is your wheel made of carbon fiber? Odd that it would be that heavy in spite of using CF. I have a wheelset made of Magnesium-Aluminum alloy with 6 "spokes". I always thought it was heavy, but the rear wheel with cassette and disk rotor was only about 1.75 Kg, quite a bit lighter than yours.
EDIT: and I don't like tha wheelset, because of the weight it adds to the otherwise light bike. I can feel the extra ~1 Kg. It's in the wrong place, I guess.
12-01-07 | 12:31 PM
#61
Senior Member
Joined: Aug 2006
Posts: 1,891
Likes: 0
From: New York
Bikes: Makino (have the parts; not yet built), EAI Barekuckle, Unknown Japanese fixed conversion, Centurion Dave Scott Ironman road bike (frame), Secret project bike, 2007 Trek Madone 5.2, Cannondale Caad3 mountain bike
I should say that I stole the NF stencil from this image, though I don't know who originally made it.
12-01-07 | 12:36 PM
#62
Thread Starter
It's an old photo
Joined: Aug 2006
Posts: 774
Likes: 0
From: Entropia
Bikes: Cannondale R500, Specialized Hardrock
Yep, carbon fiber, although the structure is different than what they use for frames.. which is why it has pinholes. I'm a little surprised it weighed that much too.. I think the fixxer is pretty heavy, and again my tire +tube weighs over half a pound. Maybe the paint added some weight too.
Kinda funny too, because my front wheel is featherlight with 16 bladed spokes, a tiny hub and a tubular rim.
1.75kg without tire and cog? 'Cause that's 3.85lbs.. I think n-spoke designs like yours are inherently lighter.
This is a recent Hed disc too, supposedly 3lbs bare.. you can get one that's half a pound lighter but it's definitely weaker. Renn makes a disc that's 2.3lbs, but it's not lenticular, Zipp's is 2.6lbs, Mavic's is about the same.
Kinda funny too, because my front wheel is featherlight with 16 bladed spokes, a tiny hub and a tubular rim.
1.75kg without tire and cog? 'Cause that's 3.85lbs.. I think n-spoke designs like yours are inherently lighter.
This is a recent Hed disc too, supposedly 3lbs bare.. you can get one that's half a pound lighter but it's definitely weaker. Renn makes a disc that's 2.3lbs, but it's not lenticular, Zipp's is 2.6lbs, Mavic's is about the same.
12-01-07 | 12:51 PM
#66
Sir Fallalot
Joined: Jul 2006
Posts: 5,288
Likes: 17
Yep, carbon fiber, although the structure is different than what they use for frames.. which is why it has pinholes. I'm a little surprised it weighed that much too.. I think the fixxer is pretty heavy, and again my tire +tube weighs over half a pound. Maybe the paint added some weight too.
Kinda funny too, because my front wheel is featherlight with 16 bladed spokes, a tiny hub and a tubular rim.
1.75kg without tire and cog? 'Cause that's 3.85lbs.. I think n-spoke designs like yours are inherently lighter.
This is a recent Hed disc too, supposedly 3lbs bare.. you can get one that's half a pound lighter but it's definitely weaker. Renn makes a disc that's 2.3lbs, but it's not lenticular, Zipp's is 2.6lbs, Mavic's is about the same.
Kinda funny too, because my front wheel is featherlight with 16 bladed spokes, a tiny hub and a tubular rim.
1.75kg without tire and cog? 'Cause that's 3.85lbs.. I think n-spoke designs like yours are inherently lighter.
This is a recent Hed disc too, supposedly 3lbs bare.. you can get one that's half a pound lighter but it's definitely weaker. Renn makes a disc that's 2.3lbs, but it's not lenticular, Zipp's is 2.6lbs, Mavic's is about the same.
12-01-07 | 02:02 PM
#70
Thread Starter
It's an old photo
Joined: Aug 2006
Posts: 774
Likes: 0
From: Entropia
Bikes: Cannondale R500, Specialized Hardrock
My friend was telling me about designs that look like nonsence when still, but when spinning they create an image.. I guess it'd only be concentric circles though. Don't know what they're called.
12-01-07 | 02:46 PM
#74
raodmaster shaman
Joined: Dec 2004
Posts: 1,431
Likes: 0
From: G-ville
That includes a pretty beefy tire, solid axle, and surly fixxer w/cog. And it's really only like 4.3lbs. With a freehub, no tire and no cassette, and a hollow axle it's 2.8lbs according to Hed's site.
It is a lot of weight, but the aerodynamic advantage is greater than the weight penalty.. that is, once you're up to speed. Accelerating is definitely harder. Remember that 90% of total resistance you encounter in normal conditions on a bike is due to wind drag. The other 10% is due to things like drivetrain efficiency and overcoming the bike's inertia. So you add a little bit of inertia, but cut the resistance by a significant amount. So it helps on the track and if you're doing time trials, but otherwise it probably sucks.
And I was really surprised at my bike's weight even with the rear.. it was about 18lbs with disc, and 13.7 without. And this is a steel frame too! So if I were to get a lightweight rear, I could probably get it down to 15.9 or so.
And you guys are probably right about the filler. I'm just nervous about sanding the carbon fiber's surface so the filler coat would need to be a little thick, which I assumed would add weight. But it probably depends on the material. I'll look into it, but I probably couldn't paint it until it warms up in the spring
Oh, and I really like the Nathan Fabian one.. I was thinking of doing that kinda stylizing to a photo of my face and putting it on. Intimidating glare + stylizing = propaganda.. hehe.
It is a lot of weight, but the aerodynamic advantage is greater than the weight penalty.. that is, once you're up to speed. Accelerating is definitely harder. Remember that 90% of total resistance you encounter in normal conditions on a bike is due to wind drag. The other 10% is due to things like drivetrain efficiency and overcoming the bike's inertia. So you add a little bit of inertia, but cut the resistance by a significant amount. So it helps on the track and if you're doing time trials, but otherwise it probably sucks.
And I was really surprised at my bike's weight even with the rear.. it was about 18lbs with disc, and 13.7 without. And this is a steel frame too! So if I were to get a lightweight rear, I could probably get it down to 15.9 or so.
And you guys are probably right about the filler. I'm just nervous about sanding the carbon fiber's surface so the filler coat would need to be a little thick, which I assumed would add weight. But it probably depends on the material. I'll look into it, but I probably couldn't paint it until it warms up in the spring
Oh, and I really like the Nathan Fabian one.. I was thinking of doing that kinda stylizing to a photo of my face and putting it on. Intimidating glare + stylizing = propaganda.. hehe.
Should of just admitted that it looked cool and that you didn't care.