Big Bike Thread

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thanks guy's for the help, sorry to be a pain, any ideas about the following

Whenever I brake hard, i.e. pull the brake levers as far back as possible the brakes make a very loud jamming/grinding kind of sound which doesn't sound good :/ I believe this to be related partially to the front disc, however the back disc also makes the noise]

whenever I pedal the pedals make a squeaking noise, and yeh I'm not pedaling there is none?

is this normal? to see the white bit?
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icysniper said:
is this normal? to see the white bit?
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Yep, it's normal to see a bit of that.

turn your bike upside down and spin the pedals around on their own (just the individual pedals, not the arms that the pedals are attached to) then spin the whole thing and try to find out where the noise is coming from. It is likely to be either the axle inside one of the pedals or the bottom bracket (the white thing in your photo).

Supercow said:
Good site with a lot of good info, he is however not always right
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Most of the work in downhill IS done by "the machinery that carries the rider and bike to the top of the run" (i am aware that riders will pedal in places as well). So i dont think you could say that he is wrong. You are entitled to disagree with his opinion though (as i do) that downhill racing is "contrary to the spirit of cycling".
(Also - i dont consider DH to be a "fad")
 
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my bmx does the "squeaking noise" was gunna ask.. but since you did :) lets wait for an answer.. i've tightened crank bolts and lubed BB it still does it :) ill try sprocket bolt now.. might come lose :O

edit

By lubed bb i mean with Grease :) so the bearings are not dry 100% sure and its sealed anyways.
 
My i950-r (adjustable seatpost) has finally arrived on British soil, it's just in customs :D fingers crossed it doesn't dissapear into the customs ether and that I can get my bum on it this week!
 
touch said:
Most of the work in downhill IS done by "the machinery that carries the rider and bike to the top of the run" (i am aware that riders will pedal in places as well). So i dont think you could say that he is wrong.
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Sorry but that is the most ridiculous notion I have ever heard.

NONE of the work is done by machinery. It's a race that specializes in going down a mountain, the fastest. Going UP the mountain has NO bearing on the results of the race and the time taken to get to the top not a factor in the time taken to get down. Getting TO where the race starts has no bearing on the results.

Stupid simile, but are you saying that Road cycling's work is mostly done by the car that got the guy to the race?! No more stupid than the notion that the machinery taking the racer up the hill/mountain does the work.

The more I think about it the more laughable it becomes.
You mean to say that the super tech lines, arm pump inducing berms, hard pedalling on the flat bits, massive jumps, fitness and training ....and just plain a wheelbarrows full of testicles has LESS to do with the race than SITTING ON A LIFT/BACK OF A TRUCK GETTING TO THE TOP.

Just my opinion of course.

I wonder how Hill got to the top, just before this near magic run blasting his competition by 8 seconds by the split ... fall before the finish line and still come 3rd.. he MUSt have saved a lot of energy not walking up the mountain eh ?
 
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By being at the top of the hill you are taking advantage of the potential energy of the hill rather that it all being pedal power. Yes, roadies freewheel down hills, but they pedal to the top of them in the first place.

Sheldon was against freewheeling in all aspects of cycling and advocated all cyclists learning on fixies.
 
[DOD]Asprilla;16752958 said:
By being at the top of the hill you are taking advantage of the potential energy of the hill rather that it all being pedal power. Yes, roadies freewheel down hills, but they pedal to the top of them in the first place.

Sheldon was against freewheeling in all aspects of cycling and advocated all cyclists learning on fixies.
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Some people just have too much time on their hands, seriously what does it matter as long as you enjoy riding?
 
I very rarely if at all, freewheel down hill on the road. Especially if there is even a slight incline at the bottom once I've reached it. Even if there is just a flat section after a descent I'll still power through it using the gears until the speed I've carried from the descent tails off slightly and I've broken into the flat section at the bottom. Less work going back up the next rise/climb if you are in the right gear and carry the speed through that you have generated from the descent you have just came down. ;)
 
I fancy a 29er hardtail, being 6'3" tall and over 200lbs.
What do people recommend? I am currently looking at the Marin Nail Trail, and I still have my eye on the On-One Scandal.
 
[DOD]Asprilla;16752958 said:
By being at the top of the hill you are taking advantage of the potential energy of the hill rather that it all being pedal power. Yes, roadies freewheel down hills, but they pedal to the top of them in the first place.

Sheldon was against freewheeling in all aspects of cycling and advocated all cyclists learning on fixies.
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This has nothing to do with the discussion though, were talking about downhill ... and that apparently the way you get to the start of the race has more of an influence on the actual race itself and skill involved.

Maybe my analogy was not well enough explained. I was not referring to roadies getting to the top of a hill... just how they actually arrive at the race - by car (car = uplift in this analogy)
 
[DOD]Asprilla;16752958 said:
Sheldon was against freewheeling in all aspects of cycling and advocated all cyclists learning on fixies.
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Talking of fixies, I'm in the market for one as I want to start riding to workmates houses instead of driving, does anybody have any experience and recommendations? I'm working on a budget of £500, thanks.
 
Supercow said:
This has nothing to do with the discussion though, were talking about downhill ... and that apparently the way you get to the start of the race has more of an influence on the actual race itself and skill involved.
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You were quoting Sheldon brown, who wrote his comment a long time ago (almost at the beginning of the internet) about downhill not really involving much in the way of pedaling since it was, literally, down hill.

His complaint was that races used mavity for most of their power rather than their own strength.

How does my comment have nothing to do with that?
 
[DOD]Asprilla;16753455 said:
You were quoting Sheldon brown, who wrote his comment a long time ago (almost at the beginning of the internet) about downhill not really involving much in the way of pedaling since it was, literally, down hill.

His complaint was that races used mavity for most of their power rather than their own strength.

How does my comment have nothing to do with that?
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Sorry, I was referring to Downhill racing, mountain bike racing.
 
MarkST said:
Talking of fixies, I'm in the market for one as I want to start riding to workmates houses instead of driving, does anybody have any experience and recommendations? I'm working on a budget of £500, thanks.
Click to expand...

well taking your sig into consideration mongoose make a quite smart looking budget one
 
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