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


Go Back   > >

Touring Have a dream to ride a bike across your state, across the country, or around the world? Self-contained or fully supported? Trade ideas, adventures, and more in our bicycle touring forum.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-14-11, 10:47 PM   #1
saddlesores
Senior Member
Thread Starter
 
saddlesores's Avatar
 
Join Date: Feb 2004
Location: Hainan, China
Bikes:
Posts: 1,781
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 131 Post(s)
front v-brake with rear disc?

sad news, i found cracks in both chainstays. living in southern china, largest frame
here is 17"...but i can order a 19". my former mtb is a 23" diamondback. i've located
apparently the only other 23" frame in china (yes, they are made here, but only for
export), an alu frame with no brake studs. disc only, chainstay mounts.

i can transfer some of the components, along with the v-brakes on the heavy, steel
fork (21cm headtube). the fork has a disc mount, but.......

i'm not doing much heavy touring, usually around 10 kg on the rear rack. lots
of rough roads, cobbles, landslides, jungle. v-brakes have sufficient stopping power
for that load and my 85kg. we have long slopes here..... sometimes a 32km rise,
followed by a constant 32-km descent.

a disc would be nice during monsoon season. i'd be afraid of a disc in front as i
imagine it'd be too easy to lock up the front wheel, especially in the wet. on the
rear, less chance of overheating the rim on those long descents. and maybe less
mud scraping off the v-brakes and dropping into the chain.

v-brakes on the front would eliminate the disc dishing problem, and would give
me a system i can get spares for in almost any tiny village hardware store.

what would be the advantages/disadvantages to a mixed system....with the v-brake
in the front and disc in the rear? anyone tried this setup?
saddlesores is offline   Reply With Quote
Old 09-14-11, 10:50 PM   #2
Sixty Fiver
Bicycle Repair Man !!!
 
Sixty Fiver's Avatar
 
Join Date: Sep 2007
Location: YEG
Bikes: See my sig...
Posts: 27,264
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
A disc front and V rear is a better setup as your primary brake is up front and with a good disc the modulation is excellent... with the right technique one should be able to apply full force to the front brake and not go over the bars and with a loaded touring bike the odds of this are decreased to a higher weight in the rear.
Sixty Fiver is offline   Reply With Quote
Old 09-14-11, 10:56 PM   #3
saddlesores
Senior Member
Thread Starter
 
saddlesores's Avatar
 
Join Date: Feb 2004
Location: Hainan, China
Bikes:
Posts: 1,781
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 131 Post(s)
the only frame available has disc mounts only. my current fork has both options.
i'm not worried about going over the bars, i'm more worried about the front wheel slipping
out, going off the edge (no guardrails in china!) and dropping a thousand feet onto the
rocks (and gone-over-the-edge tour buses) below.

i'm thinking of the rear disc like a tandem drag brake.

i suppose i could just go with dual disk. easier to buy a pair of brakes and a complete
wheelset. just wondering about the options.
saddlesores is offline   Reply With Quote
Old 09-15-11, 01:18 AM   #4
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 22,182
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1134 Post(s)
You mean all the other stuff is on the export docks?
fietsbob is offline   Reply With Quote
Old 09-15-11, 02:31 AM   #5
ollyisk
Senior Member
 
Join Date: Feb 2007
Location: Kansas City, MO
Bikes:
Posts: 305
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Put discs front and back--there's absolutely no reason not to.

I'm assuming if you're touring, you're familiar enough with a bike that you know how much force it will take to put you over the handlebars.

Disc brakes have just as much modulation as any other type of brakes, if not more (a lot of people argue that hydraulic brakes have more modulation than cable actuated discs). If you apply the brakes, they're not going to instantly lock your front wheel and send you flying, I promise.
ollyisk is offline   Reply With Quote
Old 09-15-11, 08:47 AM   #6
Cyclebum 
Senior Member
 
Cyclebum's Avatar
 
Join Date: Jan 2007
Location: NE Tx
Bikes: Tour Easy, Linear USS, Lightening Thunderbolt, custom DF, Raleigh hybrid, Felt time trial
Posts: 2,768
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Not a thing wrong with your idea, and a lot right about it. The heavier braking power should be on the rear. Use it most of the time and preserve your front wheel rim. Best of both worlds.
__________________
The bicycle is one of the great inventions of mankind. Delights children, challenges young men to feats of daring, and turns old men into boys again.--Me
Cyclebum 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 02:34 AM.