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NeoGuard
NB: Originally posted elsewhere on the Global Riders Network and appears via syndication.
Has anyone tried the following mudguard?
http://www.chainreactioncycles.com/Models.aspx?M...
Cheers,
Gonz.
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Steve made his own out of an old DH tube
I believe one of the mags ran a story on this a while back. You can easily make one using an old tube.
See here (Blondie's doesn't seem to be fastened to the fork properly):
Others have questioned the logic of this given the wheel rotates and throws mud backwards. I think it's meant to catch mud that would otherwise cling to the tire until it crossed under the fork at the top of the rotation and then let go. This mud would otherwise fly off forward and upward and end up in your face as you rode into it.
Just bored and having a thought about the mudflap.
To the doubters I think the reason the mud flies in front of us is due to the relative velocity of the tyre at the top of it's rotation. The hub of a bike is moving forward at the same velocity as the bike and rider relative to the road. However since a wheel is rotating I believe the tyre at the top of it's rotation as it passes the fork would have a combined forward velocity of twice the forward velocity of the bike and rider relative to the road. Therefore any dirt that detaches at that point will fly forward of the rider and into one's face?
Any science boffins care to confirm or dispute my thoughts? Sorry it's Friday and I can't be stuffed doing much more work
it would work..
I need to put one on my commuter as the water flips up and forwards and then you ride into it.. right at about eye level i've found..
annoying when you don't wear eye protection....
If you want to get technical though theoretically though anything flown forwards would never come into contact with the rider again as it would continue along and a faster velocity than the rider assuming they are not accelerating..
...but of course in reality the mud gets arrested by wind resistance and whilst you maintain your speed through cycling power, you power yourself right into the flung mud.
Whilst the schnichipoo works it would not stop the mud/water which is flung off after it has passed the fork arms which will still fly forward/up and still get you in the face. but it should be reduced at least. Or get the schnichipoo right up against the wheel and that should be pretty good....
Nah, that's wrong... as once the wheel has passed the fork anything that flies off it will be going in a directly forward or downward trajectory.
Its like rolling a snowball along the snow it just get bigger and bigger as the now sticks and brings on more snow. Back in England I remember that the wheel was so clogged with mud that it just couldn't rotate so this DIY helps to keep the mud off and generating more mud
You are wrong on 2 counts
1) There is a gap between the schnichipoo and the tyre.. mud flung BEFORE the fork still has a "window of opportunity" to fly UPWARDS and FORWARDS without hitting the guard. This will if flung hard enough fly up and then into your face.
2) Unless you are riding with a 90deg head angle (that would be an interesting handling ride) mud flown from or after the point of the forks with no obstruction from the 'poo still has an upward momentum factor to it.. so even with a perfect 'poo there is still a chance of the mud going up and if flung hard enough, into your face again.
Admit defeat Rob, or suffer the wrath of my MS Paint diagramming prowess
Loz
OK, maybe I was thinking in an 'ideal' scenario.
Then again head angle on my bikes is around 70 degrees. So this means mud can only go up at 20 degree max (assuming it doesn't go through the gap), right? In order for the mud to get high enough to hit your face at such a low angle it'd have to fly forward a fair way. Not sure that's going to happen.
The flap isn't going to stop mud build up on tyres Lorrie. It isn't a mud scraper! It only would stop build up on one's face
Now Gonz has no useful answers to his question but instead has been subjected to mud physics and a random snowball
thats why i have gone retro and bought a white SS
I need time to draw a diagram to explain what i think happens, however if you imagine stuff just flyign off at tangents in all directions but the stuff that goes in your face is from you moving along and the wind resistance makes you feel like it actually blowing in back into your face from the stuff released from the 12 to 3 O'clock part where as most guards fit from like 1 back to 9 which will mostly just hit the fat tube on your bike and your legs more than your face.
If you don't like mud in your face, you could always just ride a road bike.