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BMX General => BMX Chat => Topic started by: kingkeef on June 17, 2008, 01:59 PM

Title: Disk brakes
Post by: kingkeef on June 17, 2008, 01:59 PM
Without wanting to sound like a complete No-nothing-monkey. Why have we not got round to using disk brakes on NS bikes yet.

they do on MTB dont they?
"DAY DO DOH DONT DAY DOH"
Title: Re: Disk brakes
Post by: JT71 on June 17, 2008, 02:08 PM
yep, you can get disk brakes on all manner of mtbs now from super sh1t to super expensive.

so why not on ns bmx?

dunno, a lot of new school riders don;t use brakes at all, they'd most likely get smashed doing grinds and sh1t
and the market is maybe not big enough, and secretly even the the skinny jeaned new schoolers have respect for old school so they keep rim brakes.

ok, I honestly don't know.  :LolLolLolLol: :LolLolLolLol: :LolLolLolLol:
Title: Re: Disk brakes
Post by: Longun on June 17, 2008, 02:11 PM
Have a read of a book called bicycle design by Mike Burrows. All will become clear. Along with why the shaft driven BMX in this months BotM is a bad idea and many other such matters.
Title: Re: Disk brakes
Post by: HEYWOOD BMX on June 17, 2008, 02:12 PM
 :) DB did it on a prototype racebike a few years back....Can imagine they`d be ok on racebikes.Atomlab did a cable disc brake kit for a while,it bolted on to a flip-flop hub.TBH I think that it`d be a change just for the sake of change.A well set up v or u brake can work perfectly.
Title: Re: Disk brakes
Post by: dialledbikes on June 17, 2008, 02:15 PM
People have put them on BMX bikes before.

But from a racer's perspective, they aren't necessary and are heavier/more difficult to maintain than a V-brake.
Title: Re: Disk brakes
Post by: pickle on June 17, 2008, 02:15 PM
i think you could easily use a disc on the rear of a race frame......couldn't see it working on a park bike though......i understand they've made a hydrolic gyro to allow the use of them but i just don't see the need myself?  
Title: Re: Disk brakes
Post by: kingkeef on June 17, 2008, 02:16 PM
:) DB did it on a prototype racebike a few years back....Can imagine they`d be ok on racebikes.Atomlab did a cable disc brake kit for a while,it bolted on to a flip-flop hub.TBH I think that it`d be a change just for the sake of change.A well set up v or u brake can work perfectly.
Hit the nail on the fook head.Im asking casue I cant set mine up to Fookng work.
Wonking things
Title: Re: Disk brakes
Post by: theRuler on June 17, 2008, 02:17 PM
good caliper or canti brakes are perfectly adequate for bmx bikes as heywood said ^^^
tbh they are probably perfectly adequate for mountainbikes too

drum brakes were tried on bmxs back in the day, but proved to be a blind alley
Title: Re: Disk brakes
Post by: pickle on June 17, 2008, 02:19 PM
Discs on MTB are essential due to the mud and water you ride through, try doing a downhill course with V's!

as for your NS bikes brake Keef......we can look at those at creation mate!   :daumenhoch:

but just to get you started, make sure your cables are okay and oiled and also give the pads a good rubbing on sand paper to take off any gloss  :daumenhoch:
Title: Re: Disk brakes
Post by: thecrooch on June 17, 2008, 02:20 PM
you simply dont need them - i've been MTBing for 10 odd years now and some of the descents you come across if you didnt have em you would simply just die!!!

on a  flat surface you just dont need em...
Title: Re: Disk brakes
Post by: pickle on June 17, 2008, 02:22 PM
don't you mean "you simply need them"  ???

like you say......on some of the decents i've gone down V's just wouldn't start to scrub off the speed you get!
Title: Re: Disk brakes
Post by: dialledbikes on June 17, 2008, 02:24 PM
tbh they are probably perfectly adequate for mountainbikes too

Biggest problem with v-brakes on MTBs is pad life.  I've worn a set of pads out in a day when riding wet/gritty trails or really big descents.  Disc pads seem to last longer.

Compared with mountain bikers, we use our brakes a lot less.
Title: Re: Disk brakes
Post by: kingkeef on June 17, 2008, 02:26 PM
This is turning in to a good discussion .
I dont feel like a twat anymore!
Title: Re: Disk brakes
Post by: pickle on June 17, 2008, 02:27 PM
with MTBs you've also got the issue of dirt and water getting into the cables on Vs and effecting the performance, plus Mud on the rims/pads effecting braking performance.  with Hydrolic discs you don't have to worry about water and dort effecting cables and the postition of the disc and caliper mean they very rarely get effected by dirt.


But don't worry Keef......you're still a prat  ;)
Title: Re: Disk brakes
Post by: kingkeef on June 17, 2008, 02:29 PM
Thought so!
 :crazy2:
Title: Re: Disk brakes
Post by: dialledbikes on June 17, 2008, 02:40 PM
I don't think hydraulic disc brakes would go down too well with skatepark owners either if they leaked hydro oil/fluid all over the ramps after a slam.
Title: Re: Disk brakes
Post by: pickle on June 17, 2008, 02:42 PM
good point....christ could you imagine how slippery that would be!  and corrosive too
Title: Re: Disk brakes
Post by: Dark Diggler on June 17, 2008, 02:50 PM
On occasion I have ridden my 24" Jumpy at indoor skate parcs and on a track and it has a shimano rear cable pull disc with a DXR lever and its fookin ace, so much so that the hope brake I was gonna use is not on the bike. No need for Hydro's on a jumpy/trails banger.

that said I totally agree with others that on flat ground/ park/ track you dont need a disc brake although cable pull discs are an option.  Personal preference if weight isn't the priority I guess  :daumenhoch:
Title: Re: Disk brakes
Post by: dialledbikes on June 17, 2008, 02:55 PM
I think we might see disc brakes on some race bikes in future (2 pot discs with really small e.g. 85/90mm rotors), but can't see them being popular on street/park bikes any time soon.

But the only advantage I can see is that you can run discs with a knackered back wheel as it will still spin without the rim hitting the pads.
Title: Re: Disk brakes
Post by: stidds on June 17, 2008, 04:16 PM
Some of us already have a disc brake on our BMX.

Here is my Fetish Sin Cruiser complete with rear disc set up. 

How trendy am I eh?  ;)


(http://www.radbmx.co.uk/archive/albums/v518/stidds/1074c748.jpg)
(http://www.radbmx.co.uk/archive/albums/v518/stidds/64f7a166.jpg)
(http://www.radbmx.co.uk/archive/albums/v518/stidds/a18322ab.jpg)
Title: Re: Disk brakes
Post by: pickle on June 17, 2008, 04:25 PM
That's a single speed MTB!   ;)
Title: Re: Disk brakes
Post by: dialledbikes on June 17, 2008, 04:48 PM
Stidds, is that a 110mm or 135mm rear end spacing?
Title: Re: Disk brakes
Post by: stidds on June 17, 2008, 05:01 PM
Stidds, is that a 110mm or 135mm rear end spacing?

110mm Mike.
Title: Re: Disk brakes
Post by: perry on June 17, 2008, 07:43 PM
no discs here

/>
and pads dont last that long

http://www.mattmagic.com/?page=35/5

whos going to bring modulation into question ?
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