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i thought me, as big master to small slave = greater quantity of fluid being pushed through? = lower powered brake. Also a bigger slave means that because the same pressure is being exerted throughout the system, a greater pressure is exerted through the slave, as this same pressure is pushed through the whole piston. For example Right, bastards. You've made me get my lecture notes out now Pascals principle If pressure is applied to one part of a closed system it is transmitted without loss in all directions Pressure = Force / Area So if you apply a force of 100N (again I don't know how much 100N is like but bare with me) over a 14mm diameter piston: ************************************************************* 14mm Piston Area = 7mm2 (radius) X π (pi) = 153.938mm2 = 0.1539metres2 100/0.153m2 = 649.612 Pa ************************************************************* Whereas... ************************************************************* 16mm piston Area = 8mm2 (radius) X π (pi) = 201.062mm2 = 0.2010metres2 100/0.201m2 = 497.359 Pa ************************************************************* Therefore a smaller MASTER piston provides a greater pressure. Take note the same isn't the same for slaves because they are being driven by these values given. And combine these results with pascals principle; the slave cylinder(s) will be driven by the same pressure. **Just to clarify** Remember that Pressure = Force / Area and this can be re-arranged to give: Force = Pressure X Area For the example, I'll use slaves with err 20mm and 22mm diameter with the 14mm master slave being compressed at 100N So my Pressure (using previous results) is: 649.612 Pascals ************************************************************* 20mm Piston Area = 102 (radius) X π (pi) = 314.1592mm2 = 0.314m2 Force = 649.612 X 0.314 = 204.081 Newtons ************************************************************* ************************************************************* 22mm Piston Area = 112 (radius) X π (pi) = 380.132mm2 = 0.380m2 Force = 649.612 X 0.380 = 246.938 Newtons ************************************************************* These results in newtons represent the force that pushes the slave pistons outwards and make the pads come into contact with the rim I hope this helps, its helped me revise anyway, if someone can tell me how many newtons can can exert upon a brake lever, ill be more than happy to give a more trials accurate answer by inco-operating levers + moments into it too Yes I know its quarter to 2 but im bored night all EDIT: Yeah that's wrong, I've miscalculated the areas on all the pistons. But just assume the area is right and the ratio is right too, it still works.

It works the same way that gears on a bike do: Small to big = (low gear) = lots of power but lots of movement to do so Big to small = (high gear) = little movement, but not alot of power (need lower gear ratios to build up to this) Thats right isn't it? not messed that up christ I got a thermofluid exam next week.... But they look really snazzy!

just rememberd this. Any ideas? Mr Savage? Mr Oliver?

Id get in touch with her again, and really complain, say she should have ended it early etc etc then if she still says no, say even though you dont want, you'll get ebay personally involved, and then if things carry on, as said, just leave it and give bad feedback

Wow Savage has shrunk loads!

QUOTE (joe b @ Mar 2 2008, 12:23 PM) <{POST_SNAPBACK}>Which ferry have you booked? We need to book ours but yours seems really cheap... Cheers, Joe. norfolkine joe! its definitly the cheapest i've found

christ that was really really good

de ja vu

Ive just finished my first year with Ecar insurance, and been claim free. So when will I know about my no claims bonus? or do I just take it as granted that I've already had it? Am i supposed to recieve a document or something? Could do with it sharpish as Im going home in 2 weeks time Can someone tell me what happens with NCB please? thanks

Thank god he's going. We seriously would be clueless without him I remember matt tupman randomly walking up through the forest last time too hahahaha scared the shit out of us

Ha Ha haaaaaaaaa You can always come and photograph dave? are you walking yet?

I have never seen a freewheel that DOESN'T do that "bobbing" Until I read mikes post ^^ I never knew why it was, I just accepted it. I really wouldn't worry about it though.

Dunkirk is great for riding!!! Youtube Video -> ">" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350">

Think Ali C used to run one. He loved it

damn right I ride! twice a week atleast now. Proper happy

Insurance should be done in the next few days. Car might be able to drive by then too haha

Youtube Video -> ">" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350">

Is that code for something? or have I missed the entrire topic?

! !

literally just posted this second

Really really great pictures! looks like a mint days riding Cant wait for the video too!

macdonalds do: If you buy a MEAL they give you a free burger or somethign WHSmiths DON'T do student discount which is proper weird lol

QUOTE (joe b @ Feb 24 2008, 11:23 PM) <{POST_SNAPBACK}>You can't shower in a bush though ...

i dont mind pissing in some french bush

oh yeah, forgot about them things...