Bicycle Thread

[Mr Eps]

#perthfags wont worry mtb or not just a casual ride to where ever to just atretch our legs!!! you ll be right

[dan_the_man]

thursday night? cant we do it 2am friday morning

Dan - I got a pair for $40. bargain

[Mr Eps]

lol. you really are a bike rider... you just... keep... getting earlier don't you!!!!

bike riders. sick... sick people...

[xALmoN]

i remember when i used to go for friday night rides back home. twas fun.

[Stinky Rooster]

I am down for a Perth ride - I have even given up smoking after 19 years, so kinda interested to see what sort of effect it will have on my fitness...

[dan_the_man]

I am down for a Perth ride - I have even given up smoking after 19 years, so kinda interested to see what sort of effect it will have on my fitness...

we can ride to the shops to get some smokes

[25GTT]

ahhahaah Dan your a mean mean man.

i recon in summer time i am up for an after work ride along coast if you boys are keen, this also gives me a few months to get my bike legs sorted :-)

[dan_the_man]

yea sounds good to me pal

[BoyWhoCriedWolf]

I am down for a Perth ride - I have even given up smoking after 19 years, so kinda interested to see what sort of effect it will have on my fitness...

Congrats man!

Unfortunately it has no effect on your fitness. You will still be farked after excercise. Breathing is easier though.

[xALmoN]

i find a puff or two after trying to do 2.4kms under 10mins helps slow my heart rate down.

and for once i wish i was in perth, there's nobody to cycle with in melb.

Edited July 21, 2010 by xALmoN

[25GTT]

your heart rate slowing down would be due to your body getting a nicotine fix, plus the fact you arent moving when smoking (assuming that as you might still be riding when smoking??)

the nicotine would remove the anxiety effects symptomised with nicotine withdrawals therefore relaxing your nervous system and assisting with lowering heart rate, blod rpessure.

Of course 30 - 40 minutes later, if you are an excessive smoker, your blood pressure and heart rate would more than likely by higher than a typical person resting heart rate and blood pressure.

5 main symptoms of high bllod pressure that i see is:

Diet

Smoking

Drinking

Genetics

Lack of excerise

Hope that all makes sense....

Worst time to be smoking is directly after excercise, your body is absorbing everything thrown at it! hence why protein intake is recommended 15 - 20 minutes after excerise, protein isolates mainly. In having a cigerette your body would be absorbing the chemicals extremely quickly.

[mad082]

so i have spent the last 45 mins pulling a magnetic trainer apart to see how it works. don't worry kenny it wasn't yours, lol. i had 1 dropped in to be fixed (it's a rim drive one and needs a new belt), so i thought that while i was at it i would find out exactly how they work. fkn interesting stuff. took my a while to figure out. on 1 side there is a solid ring that is a magnet. on the other side 6 smaller magnets. if you touch a piece of metal to anywhere on either of the magnets it will attract the metal, however if you get another magnet, as you go along you will feel the magnet get pulled then pushed away, even on the magnet that is 1 piece and round.

so basically how it works is there is an aluminium plate that spins between the 2 magnets. now aluminium isn't magnetic, but when the resistance is on low the magnets are attracting towards each other and the plate spins easily. as you turn the resistance up the magnets start to oppose each other and obviously this magnetic field causes a resistance that makes it harder for the plate to spin. i don't know enough about magnets to explain it properly, but that is how i think it works, and as far as the 2 magnets attracting and opposing each other, that is know for a fact, because if i open the unit with the resistance at hard it pops open when i undo the screws, but when the resistance is easy i have to pull a bit to get it open.

ok, just did a quick bit of research. i was right about the magnetic for slowing it down. it's called an eddy current. it's also used on rollercoasters and trains. it's a frictionless brake

[dan_the_man]

why don't you pull your arse apart and see how that works?

[Spurdo]

whats a good tyre pressure to run on my bmx? i just bought a 2009 haro forum from a local dealer, got it cheap cos the 2010 stuffs in. when riding it it feels like the dealer didnt have enough air in the tyres so it doesnt freewheel that well and when i hand squeeze the tyres i'm pretty sure they feel a bit soft to me. same thing happened with the bmx i had last year but i cant remember what i pumped them up to.. so can someone tell me what sort of pressure bmx tyres should be?

[mad082]

read the side of the tyre and see what it says. it could be anywhere up to 100psi, but it depends on the quality of the tyre. better tyres will take higher pressures. generally a lower quality tyre will take up to about 65psi. and yeah 2009 stuff is cheap now because the 2011 stuff will be out in a few weeks. also if it isn't rolling that well then there are 2 other things to check. 1: chain tension. often from the factory the chain will be done up a touch too tight and this can be enough to put a touch more pressure on the bearings and slow things down a bit. 2: the cones in the wheel are a touch tight. again a common factory thing. to check this remove the wheel and spin the axle with your fingers. it should spin easily but not have any play in it.

and dan, i already know how that works.

[mad082]

i found some pics on the apollo facebook page of the 2011 range (only a few pics) and cherie has fallen in love with this bike, so looks like i will be ordering one at the show tomoro. don't know a price yet, but looks to be an entry level ladies road bike, so probably be around the $1000 mark

[25GTT]

My wife would LOVE that bike!!

[mad082]

i sent a link of the pic to cherie and she just went "oooooooo that's pretty...... buy me that bike"

[JAS-25T]

can you take a pic of her on the bike form the same angle?

focus more on teh seat though

post here.

kthx.

[Spurdo]

so today i got a flattie and had to walk the bike about 1km home. lucky it happened on my way back. when i investigated the puncture tonight i found a dirty great big nail sticking through the tyre - yep, that'll do it.

i know how to patch the tube so thats no worries but is it ok to use the same tyre? the hole left by the nail is real tiny but i duno if a tube at 80-100psi might be inclined to try escape through it lol.. thoughts??