Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-20-02, 09:27 PM   #1
tokus
Senior Member
Thread Starter
 
Join Date: May 2002
Location: Illinois
Bikes:
Posts: 111
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Whats needed for hydraulic disk brakes?

Im just getting into moutain biking, switching over from Road and im thinking about getting a Specialized M4 Stumpjumper. I'm not going to go to disc brakes right away but i want to plan on what exactly will i need. I have heard about having to replace the hub, what exactly does that mean. Also what will i need beside just the disc brakes (http://www.performancebike.com/shop/...html?SKU=12454) ? How much do the things like new hubs cost? Thanks

Sorry if this has already been covered but i searched for threads about disc brakes and there was just way to much information to weed through, i read some but my questions werent completely answered. Help a newbie MTBer out thanks again.
tokus is offline   Reply With Quote
Old 07-20-02, 10:05 PM   #2
Dirtgrinder
Dances with Rocks
 
Dirtgrinder's Avatar
 
Join Date: Apr 2001
Location: Jefferson City, MO
Bikes:
Posts: 1,441
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Make sure the frame is disc brake ready. Meaning that it has the mounts on it for disk brakes. Also that the forks have the mounts. If it is a new bike it probably is but I'd check to be sure. Hubs vary greatly in price. Check this page out.
http://www.pricepoint.com/hubsmtb.html
You might be better off just buying a new wheelset with disk hubs. Check out prices on wheelsets also.
http://www.pricepoint.com/wheelsdisc.html
If you just get the hubs, then you have to pay someone to rebuild your wheels.
Check prices at other stores too.
Performancebike
Jensonusa
Supergo
Nashbar
__________________
If everything seems under control, you're just not going fast enough...

To become a registered member of BikeForums Click Here

Last edited by Dirtgrinder; 07-20-02 at 10:09 PM.
Dirtgrinder is offline   Reply With Quote
Old 07-20-02, 10:18 PM   #3
dirtbikedude
Gravity Is Yer Friend
 
dirtbikedude's Avatar
 
Join Date: May 2002
Location: "Over the Hill" and going down fast in the 805.
Bikes: Scott Gambler, Scott Ransom, Kona Bear, Bianchi 928 Carbon/Chorus, C'Dale Rize4
Posts: 2,961
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Welcome to the forum and the rough side of the road(mtb). I am not familiar with the Specialized you mention but if it is a recent model year, then the frame should be set up with mounts for the rear caliper. The front on the other hand depends on the fork. Look on the bottom portion of the fork, if there is a mount with two eyelets you should be able to mount the front caliper. You will how ever have to purchase new hubs for the wheels. Hubs can run any where from 35$ to 300$+ depending on the quality, materials and where they are made. You should be able to pick up some decent hubs, fr & rr, for around 150$. You will then have to have the wheels rebuilt and could run you about 45$ a wheel.
I would recomend you consider disc brakes when you purchase the bike if money is a prob. There are others on this forum that could give you better info being that they work in a shop.
Slainte
Matt
dirtbikedude is offline   Reply With Quote
Old 07-20-02, 11:38 PM   #4
unrelated
Senior Member
 
Join Date: Jun 2002
Bikes:
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I use Avid mechanical disc brakes and I still don't see how much better hydraulic disc brakes are.

What I mean is I think mechanical disc brakes are good enough. We are not riding a motorbike whose weight can be 6 times more. I just don't think there is a need for hydraulic.
unrelated is offline   Reply With Quote
Old 07-21-02, 12:10 AM   #5
mechBgon
Senior Member
 
mechBgon's Avatar
 
Join Date: Jul 2002
Bikes:
Posts: 6,957
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think part of the attraction of hydraulic is the near-perfect sensitivity between what the rider does to the brake lever and what the pads do to the disc. Perhaps the sealed nature of the system is an advantage in some ways too.

Having said that, I've stopped allowing my XT front hydraulic disc any excuses. It's broken in, it's bled, it has good modulation and sensitivity, but it's just not that powerful. Guess I was expecting the kind of grip I've seen with Hayes hydraulics in the past...

Not trying to start a Hayes-versus-Shimano war here, so I hope no one takes my criticism of my own brake the wrong way. But if the only advantage I'm getting out of my XT is sensitivity, and not extra power, then I'm a bit disappointed, particularly after building a very beefy front wheel for this thing, and converting to separate shifter pods too. Heh, maybe I should try some non-Shimano pads in it before I give up... any suggestions?
mechBgon is offline   Reply With Quote
Old 07-21-02, 08:20 AM   #6
dirtbikedude
Gravity Is Yer Friend
 
dirtbikedude's Avatar
 
Join Date: May 2002
Location: "Over the Hill" and going down fast in the 805.
Bikes: Scott Gambler, Scott Ransom, Kona Bear, Bianchi 928 Carbon/Chorus, C'Dale Rize4
Posts: 2,961
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I would say that mechanical disc is the way to go if you are doing xc. They stop a bit better then v-brakes and weigh less then hydraulic. If you are a serious dh rider, a good set of hydraulics will do you right. If you want as little added weight to the bike then stay with v-brakes. In a long winded way I am saying that they all have there place and purpose, decide what type of riding you plan on doing and base your decision on that.
Slainte
Matt
dirtbikedude is offline   Reply With Quote
Old 07-21-02, 08:55 AM   #7
tokus
Senior Member
Thread Starter
 
Join Date: May 2002
Location: Illinois
Bikes:
Posts: 111
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks you were all very helpful and friendly, ill just stick with the v- breaks for now and if i ever get into any serious riding maybe ill upgrade the brakes. Thanks again.
tokus is offline   Reply With Quote
Old 07-21-02, 11:26 AM   #8
KleinMp99
New to bikeforýms.net
 
Join Date: Jan 2001
Bikes:
Posts: 2,202
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally posted by dirtbikedude
If you want as little added weight to the bike then stay with v-brakes.
Ok so lets take the XTR v brake (375g) + lever (83g) thats with no cables.....

And a Hayes HYDRAULIC brake....their site says Average System Weight
(Complete system, disc, and mounting hardware) 418 grams

So.......what v brake are you going to spend your money on that is that much lighter than a disc brake.....
KleinMp99 is offline   Reply With Quote
Old 07-21-02, 11:50 AM   #9
mechBgon
Senior Member
 
mechBgon's Avatar
 
Join Date: Jul 2002
Bikes:
Posts: 6,957
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
XTR V-brakes are about 190 grams per wheel, if you're going on a per-wheel basis. Disc hubs typically add a little weight too (about 150 grams/pair if looking at the disc v. non-disc XT's).
mechBgon is offline   Reply With Quote
Old 07-21-02, 02:37 PM   #10
dirtbikedude
Gravity Is Yer Friend
 
dirtbikedude's Avatar
 
Join Date: May 2002
Location: "Over the Hill" and going down fast in the 805.
Bikes: Scott Gambler, Scott Ransom, Kona Bear, Bianchi 928 Carbon/Chorus, C'Dale Rize4
Posts: 2,961
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Did I touch a nerve? I was addresing those riders who count every gram and are trying to get a bike as lite as possible.
Slainte
Matt
dirtbikedude is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 09:59 PM.