View Full Version : disk brakes on a bmx bike
d4p4b
02-20-2005, 06:27 PM
hey, i dont want to start a discussion about frame building but ... is there a market for a bmx bike that has the OPTION of running disk brakes? the only drawback i could think of is that it would have to use a mtb rear hub. any in-put is cool. thanks
Handlebarsfsr
02-20-2005, 06:51 PM
i think that'll have trouble catching on. theres really no point. i race bmx, (cruiser) and you barely use your brakes, and you only have a rear brake, no front needed. for street riding, discs would get mangled in an instant with the number of falls taken, and grinding. dirt jumping is similar to bmx- you just dont need your brakes very much, and rim brakes work fine and are much cheaper and they are more out of the way than discs are. except for bling factor, they would be almost completely useless on a bmx bike of any sort.
d4p4b
02-20-2005, 07:29 PM
allright thanks for the info, but im still making one for my self !!! ill post pics when its done.
arboc!
02-20-2005, 07:51 PM
brian lopes signiture bmx frame has disc mounts on it... then you need a 20" rim w/ disc hub
stringcheese
02-20-2005, 10:43 PM
get one of these
http://akamai-lq.bizrate.com/resize?sq=400&uid=246966947&mid=25252
hey, i dont want to start a discussion about frame building but ... is there a market for a bmx bike that has the OPTION of running disk brakes? the only drawback i could think of is that it would have to use a mtb rear hub. any in-put is cool. thanks
no. drop it, same with hydrolic gyros
The Kadvang
03-13-2005, 08:03 PM
why would u need disks on a bmxican?
scurban
03-13-2005, 09:25 PM
I don't think you really need disks on any bike that is intended for jumping, riding street and skate parks. 26" bikes included. Disc's over complicated, and rotors bend and brake way too easily. .......IMO. I actually feel the stopping power is better on a properly set up V brake then on a 6" disc. The major advantage of discs is their modulation. However the stopping power needs to go through the hub, then through the spokes, to the rim, to the tire. There is a lot more distance for flex. Rim brakes however, put their power to the rim, and give a much better "on" or "off" feeling. Which makes them better for tricks like Abubaca's and Fufanu's.
Again, this is all my own personal opinion that I have concluded to after spending significant time on both discs, and "V" brakes. Plus, on a stoutly built 20", 24" or 26" bike, its nice to reduce some weight by useing "V" brakes, especially if your intention is to build something both durable, and light.
The Kadvang
03-13-2005, 09:53 PM
I don't think you really need disks on any bike that is intended for jumping, riding street and skate parks. 26" bikes included. Disc's over complicated, and rotors bend and brake way too easily. .......IMO. I actually feel the stopping power is better on a properly set up V brake then on a 6" disc. The major advantage of discs is their modulation. However the stopping power needs to go through the hub, then through the spokes, to the rim, to the tire. There is a lot more distance for flex. Rim brakes however, put their power to the rim, and give a much better "on" or "off" feeling. Which makes them better for tricks like Abubaca's and Fufanu's.
Again, this is all my own personal opinion that I have concluded to after spending significant time on both discs, and "V" brakes. Plus, on a stoutly built 20", 24" or 26" bike, its nice to reduce some weight by useing "V" brakes, especially if your intention is to build something both durable, and light.
werd... and no bashing your disc on missed stalls and grinds... id run a v if my frame had mounts for it
Mattoid
03-14-2005, 08:36 AM
I agree that the vees feel nice in the park, but aslong as you dont smash your rotor the discs require less maintenance. Once theyre dialed they just keep working. When i ran rim brakes i had to clean the rims all the time to make sure they had any bite at all. Im sure with the proper pad/rim combo it would work very well though. To me the extra bite/power that the discs provided was worth the flex in the wheel compared to the brake actually slipping on the rim.
brake_and_bleed
03-18-2005, 05:15 AM
you also couldnt run a mtb rear hub cos they have different spacing...
Changleen
03-18-2005, 07:22 PM
Maguras you fools!
Atomic has a kit for mounting a disc onto a BMX bike. You need a flip flop hub to thread the rotor adapter onto and I wouldn't recommend it for anything beside BMX racing really.. But for what its worth ;)
bikenweed
03-19-2005, 08:04 PM
Don't King and Phil Wood make BMX spaced (135mm?) single speed, disc hubs? It's nothing revolutionary to put a disc on a BMX bike, it's just not worth it.
BMXman
03-20-2005, 12:56 PM
Hope makes a kit that bolts right up.....D
CunningStunt
05-01-2005, 01:10 PM
The funny thing is at the Orange Y I'm seeing bmx with disc brakes. It's not super common but it is being done.
BKQuill
05-05-2005, 10:08 AM
Discs on a BMX bike is just plain "overkill"! No need for them.
arboc!
05-05-2005, 01:35 PM
this thead should be deleted, it sucks tremedous ass. even if you could put them on a bmx, bmxers wouldnt, because bmxers are horrably cheap
dromond
05-05-2005, 11:43 PM
Also, disc brakes biggest advantage is perhaps when conditions are nasty. Bmx tends to be a more dry-weather sport.
SuspectDevice
05-07-2005, 10:53 PM
Norco, mtn cycle, specialized, GT, Trek, and plenty of garage companies have sold race frames with disc mounts. It's a silly case of overkill, so i say do it!
Changleen
05-07-2005, 11:33 PM
If your fingers are really that puny and you can't set up a u-brake properly, you'd be far better off building a frame with proper Magura HS33 lugs. Thery're out of the way, act on the rim for a great feel and have the power of hydro.
ioscope
05-07-2005, 11:37 PM
Yes, discs RM-azing.
boostindoubles
05-18-2005, 09:43 PM
my 2 cents:
Personally, i beat the hell out of my bmx bike. The rims get dented and tweaked from all the 180's and 360 attempts. I CANT stand the brake rub on a dented rim with v/u brakes it wears the pads all funky and when its bad you can feel it alter your momentum as it rubs on each revolution of the wheel. Disc brakes are nice, cause no matter how dented the rim is, your gonna have good stopping power.
I have a friend who builds frames on the side, who used to race single A back in the day. The last bmx frame he built for himself had only a disc mount. I've ridden it and it works well. My bmx bike had the shimano dx vbrakes and i liked them well enough.
If i rebuilt a bmx bike i'd just go with v brakes or some diacompe 990's. Unless of course, if i have my buddy build me up a frame, i'd probably ask for disc mounts for the 'my bike is trick as f*ck' factor.
arboc!
05-18-2005, 11:09 PM
yes but you failed to mention, that if you ride hard and do grind/ stalls and similar tricks there is huge potential of bending/destroying a disc.
Hucknificent
05-19-2005, 01:22 AM
yes but you failed to mention, that if you ride hard and do grind/ stalls and similar tricks there is huge potential of bending/destroying a disc.
Ummm..........it's a bmx racing frame. Not intended for that stuff at all. Everyone fails to realize that at the speeds most pros ride at the modulation offered by disc would also be advantageous. Especially the speeds they race in downhill bmx, bikercross and the wide open hammer till you drop tracks.
boostindoubles
05-19-2005, 03:59 PM
yes but you failed to mention, that if you ride hard and do grind/ stalls and similar tricks there is huge potential of bending/destroying a disc.
if i was into grinds/stalls i probably would run traditional brakes. I ride a bmx on dj's, race, and general goofing around (manuals, bunnyhopp, 180's).
but yea, you have a valid point to why disc's arent good for street/ramp riding on a bmx
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