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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 11-17-11, 04:36 AM   #1
Barchettaman
Senior Member
Thread Starter
 
Barchettaman's Avatar
 
Join Date: Oct 2008
Location: Frankfurt, Germany
Bikes: Focus trash find commuter, Eddy Merckx Corsa, BP Stealth TT bike, Leader 720 TT bike, Boardman Comp Hybrid drop bar conversion, Quantec CX budget cyclocross build, SerottaNOS frameset ready to build up!
Posts: 1,239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Flat bar road bike, MTB shifter for the front derailleur?

I am converting a road frame thatīs slightly too big for me into a flat bar.

Set up is to be 3x8, all the bits are waiting to go on.

The LH shifter came off a wrecked commuter bike with a top pull triple front derailleur.

I want to run it with a standard īroadī down pull triple front derailleur as the frame doesnīt have any top tube or seat tube cable stops, and thatīs the only FD I have lying around.

Will it work?
Thanks in advance. I searched but couldnīt find anything specific.
Barchettaman is offline   Reply With Quote
Old 11-17-11, 04:44 AM   #2
Barchettaman
Senior Member
Thread Starter
 
Barchettaman's Avatar
 
Join Date: Oct 2008
Location: Frankfurt, Germany
Bikes: Focus trash find commuter, Eddy Merckx Corsa, BP Stealth TT bike, Leader 720 TT bike, Boardman Comp Hybrid drop bar conversion, Quantec CX budget cyclocross build, SerottaNOS frameset ready to build up!
Posts: 1,239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I should also mention that I have a cheap thumb shifter kicking around in the parts bin so I could just use that for the front derailleur and forget about a triple indexed shifter.

By the way I have other drop bar road bikes which I love, just looking to make something of this frame.
Barchettaman is offline   Reply With Quote
Old 11-17-11, 04:56 AM   #3
LesterOfPuppets
cowboy, steel horse, etc
 
LesterOfPuppets's Avatar
 
Join Date: Sep 2008
Location: Rock Springs, WY
Bikes: My War
Posts: 26,860
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 304 Post(s)
If it's a multi-click (like a current Sram Attack for instance) or friction shifter then I think you could probably get it to work. If it's a three or four position index shifter then I wouldn't hold out much hope for making that work, assuming you're talking about a road front derailleur.

EDIT: actually, I guess I've been on touring setups with trekking bars similar to the setup you're talking about that worked OK. So it might work out with a variety of shifters and FDs.

Last edited by LesterOfPuppets; 11-17-11 at 05:04 AM.
LesterOfPuppets is online now   Reply With Quote
Old 11-17-11, 05:23 AM   #4
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
Posts: 12,258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
there are flat bar shifters for road FDs.

but for the cheap method, that thumb shifter should work plenty fine.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline   Reply With Quote
Old 11-17-11, 08:25 AM   #5
Barchettaman
Senior Member
Thread Starter
 
Barchettaman's Avatar
 
Join Date: Oct 2008
Location: Frankfurt, Germany
Bikes: Focus trash find commuter, Eddy Merckx Corsa, BP Stealth TT bike, Leader 720 TT bike, Boardman Comp Hybrid drop bar conversion, Quantec CX budget cyclocross build, SerottaNOS frameset ready to build up!
Posts: 1,239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I think I will go with the cheap arse method, it would be annoying to cable everything up and find it doesnt work.
Barchettaman is offline   Reply With Quote
Old 11-17-11, 10:57 AM   #6
DCB0
Banned.
 
Join Date: Apr 2011
Bikes: CCM Torino 76
Posts: 937
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah, go with friction shifting.

THe other option would be to get a bottom pull mtb front derailleur. THese can cost as little as ~15 dollars (what is that in euros? 10? 25,000?)
DCB0 is offline   Reply With Quote
Old 11-22-11, 05:55 AM   #7
Barchettaman
Senior Member
Thread Starter
 
Barchettaman's Avatar
 
Join Date: Oct 2008
Location: Frankfurt, Germany
Bikes: Focus trash find commuter, Eddy Merckx Corsa, BP Stealth TT bike, Leader 720 TT bike, Boardman Comp Hybrid drop bar conversion, Quantec CX budget cyclocross build, SerottaNOS frameset ready to build up!
Posts: 1,239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Looking for bottom pull MTB front derailleurs, the max front chainring size is 48, and the FSA chainring on my triple is 53.

Does anyone make a suitable MTB front mech for this size of chainring?

Or will I have to take a downpull MTB front mech for a date with the grinder at work?

Thanks all
simon

Last edited by Barchettaman; 11-22-11 at 06:08 AM.
Barchettaman 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 07:53 AM.