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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 12-06-05, 10:15 PM   #1
geekpunk
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single speed mtb business in the front party in the back?

I just read sheldon brown's spiel about single speed mountain bikes and disc brakes. I'm in the process of building up a bike that I was going to do with mechanical discs on the front and back. I'm still considering doing it, but a friend of mine also mentioned doing disc brakes up front and v brakes in the back. Does anyone else run this and have an opinion one way or the other?
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Old 12-06-05, 10:26 PM   #2
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I've thought about doing it. I don't really see the need for a disc in back, the back brake doesn't do much work anyway.
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Old 12-06-05, 10:33 PM   #3
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I think this would let you have a flipflop hub for easy gearing changes
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Old 12-07-05, 02:33 AM   #4
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I did this....worked fine. Had great breaking power still and I was able to easily mess with my rear wheel
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Old 12-07-05, 09:00 AM   #5
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I been running disc in the back, but will be going mullet. I have a Novatec disc SS hub, so I also plan on getting a cog replace the rotor. Is Boone's the only guy that makes cogs that bolt onto disc mounts?
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Old 12-07-05, 09:14 AM   #6
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Originally Posted by jim-bob
I've thought about doing it. I don't really see the need for a disc in back, the back brake doesn't do much work anyway.
Not all the time, but if you do snow biking, the rear brake is your friend. Being able to lock up the rear wheel is a boon when you are on ice with studded tires.

I'd never compromise braking in order to make flip-flopping the wheel easier. Plus, it just looks better.
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Old 12-07-05, 10:28 AM   #7
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Originally Posted by SpiderMike
Is Boone's the only guy that makes cogs that bolt onto disc mounts?
No several options:

There's probably a few others but those are the ones I know. And drilling a cog wasn't hard to do either. Cost me all of $5 for the cog and a few more bucks for a good cobalt bit.
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Old 12-07-05, 10:35 AM   #8
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the back brake doesn't do much work anyway.
I guess it might depend on the types and conditions of the trails your ride, and also how agressive of a rider your are, but a rear brake, regardless of type, I find important when running a coasting bike. Even in riding a fully rigid bike by applying the rear brake with the front the forces being transmitted to your body will be more squat like then fork heavy if that makes sence.
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Old 12-07-05, 12:19 PM   #9
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I guess it might depend on the types and conditions of the trails your ride, and also how agressive of a rider your are, but a rear brake, regardless of type, I find important when running a coasting bike. Even in riding a fully rigid bike by applying the rear brake with the front the forces being transmitted to your body will be more squat like then fork heavy if that makes sence.
Yeah, but have you ever said to yourself "Man, my rear brake just isn't powerful enough!". I know I never have.
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Old 12-07-05, 01:08 PM   #10
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Originally Posted by jim-bob
Yeah, but have you ever said to yourself "Man, my rear brake just isn't powerful enough!". I know I never have.
Um, Sunday. Rolling down a gentle decline, on snow-covered trails. I see that the trail leads to a creek. I attempt to brake. Snow and ice-covered V-brakes do nothing. Panic ensues.

Also, when rainy or muddy.
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Old 12-07-05, 01:13 PM   #11
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Originally Posted by Aeroplane
Um, Sunday. Rolling down a gentle decline, on snow-covered trails. I see that the trail leads to a creek. I attempt to brake. Snow and ice-covered V-brakes do nothing. Panic ensues.

Also, when rainy or muddy.

solution: studded brake pads.
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Old 12-07-05, 01:14 PM   #12
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Originally Posted by Aeroplane
Um, Sunday. Rolling down a gentle decline, on snow-covered trails. I see that the trail leads to a creek. I attempt to brake. Snow and ice-covered V-brakes do nothing. Panic ensues.

Also, when rainy or muddy.
Ah, I could see the ice and snow being difficult. They don't really exist in my world, and I've found well adjusted v-brakes and cantis to work just fine in rain or mud after the brief moment of scratchy not-stopping.
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Old 12-07-05, 01:16 PM   #13
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Originally Posted by geekpunk
I just read sheldon brown's spiel about single speed mountain bikes and disc brakes. I'm in the process of building up a bike that I was going to do with mechanical discs on the front and back. I'm still considering doing it, but a friend of mine also mentioned doing disc brakes up front and v brakes in the back. Does anyone else run this and have an opinion one way or the other?
if you wanted to be super cool, you could always run a hydraulic disc up front, and a magura hydraulic rim brake in the rear.
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Old 12-07-05, 01:32 PM   #14
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i think disc brakes are good if you live near some SEROIUS hills, but east of the rockies i woulsd say they are not really necessary.

the good thing about NOT using a disc in the back of a singlespeed is that you don't have to re-adjust your disc caliper everytime you take the wheel off (another way around this is an eccentric bottom bracket).

but then, if your gonna use a v in the rear anyway, why not just go v front and back... has anyone ever said i don't have enough front brake??? front v's will toss me or anyone over the bars if you really honk on them.

one finger braking is for weak handed sissies

discs seem to be a solution to a problem i never really had.
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Old 12-07-05, 02:37 PM   #15
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Originally Posted by jim-bob
Yeah, but have you ever said to yourself "Man, my rear brake just isn't powerful enough!". I know I never have.
Yes. When my Surly was built up I was shipped two front brakes but I wanted to race that night. So I took the bike minus rear brake and did my first race with a SS. Some how I ended up 3rd place in my class but know that I was having to scrub speed a whole hell of a lot sooner then if I had a rear brake. It makes things a bit sketchy sans rear. Kind of similar to when I ride that bike as a fixed gear now. Trying to keep weight on the rear tire is sometime a complete and utter challenge depending on the terrain.
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Old 12-07-05, 02:44 PM   #16
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Quote:
Originally Posted by Kiecker
Yes. When my Surly was built up I was shipped two front brakes but I wanted to race that night. So I took the bike minus rear brake and did my first race with a SS. Some how I ended up 3rd place in my class but know that I was having to scrub speed a whole hell of a lot sooner then if I had a rear brake. It makes things a bit sketchy sans rear. Kind of similar to when I ride that bike as a fixed gear now. Trying to keep weight on the rear tire is sometime a complete and utter challenge depending on the terrain.
There's a difference between your rear brake not being powerful enough and not having a rear brake at all.
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Old 12-07-05, 05:28 PM   #17
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Quote:
Originally Posted by SpiderMike
I been running disc in the back, but will be going mullet. I have a Novatec disc SS hub, so I also plan on getting a cog replace the rotor. Is Boone's the only guy that makes cogs that bolt onto disc mounts?
Send a PM to INKDWHEELS he bought me one for christmas last year but I don't know where he got it
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Old 12-07-05, 06:17 PM   #18
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Originally Posted by max-a-mill
...
discs seem to be a solution to a problem i never really had.
How about the problem of riding in the rain, snow, and melted-snow-mush?
Go disc in the front. Much better all weather braking.
Whether or not you should go disc in the back, I have no opinion.
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Old 12-07-05, 06:37 PM   #19
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running a skullet - mech disc in front, no brakes in rear.
It's fixed so I only need one.
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Old 12-07-05, 08:38 PM   #20
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Originally Posted by jim-bob
Ah, I could see the ice and snow being difficult. They don't really exist in my world, and I've found well adjusted v-brakes and cantis to work just fine in rain or mud after the brief moment of scratchy not-stopping.
Build according to your geography. Of course, I've also had the brief moment of not-stopping come at inopportune times, and I ran into a tree. That's another story.
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Old 12-07-05, 09:12 PM   #21
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It depends on where you ride. For me a rear disc or a really well set up V are handy for cross country Mountain biking. At speed on the loose stuff a rear brake is essential to get the bike slowed down.

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Old 12-07-05, 09:17 PM   #22
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Quote:
Originally Posted by OneTinSloth
if you wanted to be super cool, you could always run a hydraulic disc up front, and a magura hydraulic rim brake in the rear.
holy christ! my roomate has magura hydraulic rim brakes on his trials bike and the first time i rode it i almost went over the handlebars! those brakes freakin stop you!
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Old 12-07-05, 10:03 PM   #23
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You may as well go full discs. If you want to save weight, get a 140mm rotor for the rear.

V-brakes are such a PITA, I'm not sure why anyone would want to still run them, short of 'My bike doesn't have disc mounts'.
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Old 12-08-05, 12:40 AM   #24
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holy christ! my roomate has magura hydraulic rim brakes on his trials bike and the first time i rode it i almost went over the handlebars! those brakes freakin stop you!
i have 'em on my MTB...they work perfectly for trials, but for actual mountain biking, they're about the same, or a little worse than regular V's. i'd swap 'em out, but they're just so friggen cool!

thylacine, thylacine, thylacine....i think hydraulic discs are more of a PITA than V brakes, unless you have a really excellent set that you can adjust the modulation on, like hayes el caminos...of course, then you run into maintenance issues, and having to have special bleed kits and they're a major hassle to rebuild the calipers. HFX-9s are decent, but not so much modulation. the only brakes i really like the feel of are the shimano deore levers with XTR calipers. avid juicy 7s are nice, but are even more a PITA than el caminos...IMO, a cable actuated disc brake, like the avid BB7 is the best way to go for a disc brake. you got the power, modulation, and easy peasy maintenance of a cable brake.

one thing that i'd like to check out is the formula self-adjusting disc brakes. the master cylinder is cable actuated, so you can use any lever you want with them...they're designed for tandems, and santana has been using them, so they've gotta be somewhat reliable...

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Old 12-08-05, 01:16 AM   #25
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i've done it. the only downside is when wet/snowy. and.......once you get used to the modulation of the disc in front, you'll want one in back.

both my mtbs sport front and rear discs now. i can't imagine going back to v-brakes, other than for a superlight race bike.
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