Retrobike Forum Index

It is currently Sun Dec 11, 2016 9:40 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Sat Jun 01, 2013 8:18 pm 
Gold Trader
Gold Trader
User avatar

Joined: Sat Oct 23, 2010 10:33 pm
Posts: 2120
Location: New Forest
Well, Kinda.

Essentially, I want to run 2 calipers from one brake lever.

In order to get adequate pad travel, I need to find a lever that will move twice as much fluid as the calipers would normally need.

Anyone know how much fluid different models of brake move? Any suggestions for a combo that would work?

:?: :?: :?:

.


Top
 Profile  
 
PostPosted: Sat Jun 01, 2013 8:31 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 06, 2010 10:05 pm
Posts: 5665
Location: Aberdeen
I was going to say Hope v-twin remote resevoir, but thats for cable-->hydraulic... :?


Last edited by jimo746 on Sat Jun 01, 2013 8:36 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Sat Jun 01, 2013 8:32 pm 
aka Leo Swayer
aka Leo Swayer
User avatar

Joined: Wed Jun 18, 2008 7:15 pm
Posts: 6365
Location: Wales.UK
If you use 2 x 2 pot(2 piston) calipers would a lever from a 4 pot(4 piston) caliper work?
ie. Use 2 mono mini caliper and a DH4 lever.
I can't say for sure it will work but the DH4 lever moves double the number of pistons so(in my head at least :lol: ) it must move double the amount of fluid :D


Top
 Profile  
 
PostPosted: Sat Jun 01, 2013 11:06 pm 
Old School Grand Master
User avatar

Joined: Mon Jun 14, 2010 9:06 pm
Posts: 4449
Location: Herts UK
it is about piston area - ^^^^^^ don't assume that having 2 or 3 pairs of pistons means more fluid is moved than for 1 pair - I am pretty sure that Magura Marta calliper pistons is larger than Shimano XT 4 pot.

Ypou really need to get mearuments of piston diameter and take it from there.


Top
 Profile  
 
PostPosted: Sun Jun 02, 2013 4:50 pm 
Retro Guru

Joined: Tue May 06, 2008 4:24 am
Posts: 713
Location: Edinburgh
would it not be easier to bond two levers together on the side you need

if you run both off one line with a t connection, if one fails they both fail


Top
 Profile  
 
PostPosted: Sun Jun 02, 2013 8:12 pm 
Retro Guru

Joined: Thu Jul 07, 2011 9:42 pm
Posts: 1870
Location: crawley
didnt hope do a hub and caliper set up that went on a set of bomber forks with disc mounts either side ?

think the forks were white ?


Top
 Profile  
 
PostPosted: Sun Jun 02, 2013 8:16 pm 
Retro Guru

Joined: Thu Jul 07, 2011 9:42 pm
Posts: 1870
Location: crawley
seen this on ebay

http://www.ebay.co.uk/itm/111087601811? ... 1438.l2648


Top
 Profile  
 
PostPosted: Mon Jun 03, 2013 1:55 am 
Old School Grand Master
User avatar

Joined: Sun Aug 21, 2011 11:57 pm
Posts: 4074
Location: Antwerp, Belgium
ba57ards wrote:


Darn, UK only. With eBay's latest update that means I can't even bid on it anymore.
I just might get a set of Magura Big Twins then.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group