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 10-25-10, 04:18 PM   #1
Daveyates
Senior Member
Thread Starter
 
Daveyates's Avatar
 
Join Date: Apr 2010
Location: Paris France
Bikes:
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
DIY Stronglight 49D crank remover

I have a Stronglight 49D crankset on my Motobecane and i'm trying to come up with a solution to remove them without the EXPENSIVE special tool.
I've come up with an idea to remove them and just wanted to get some opinions on the idea.
If i clamp a standard crank onto the Stronglight cank arm and use the standard puller with an extension so that it reaches through both crank arms it should work right? I haven't heard of this solution before but in my mind i can't see why it wouldn't work or maybe i'm just having a stupid moment! I'm just waiting on getting a socket so that i can remove the bolts and then i'm going to try this idea.
Anyway what do you guys think?
I'm sure some people will say to buy the proper tool but they are expensive and i haven't much money at the moment.
Daveyates is offline   Reply With Quote
Old 10-25-10, 04:22 PM   #2
Daveyates
Senior Member
Thread Starter
 
Daveyates's Avatar
 
Join Date: Apr 2010
Location: Paris France
Bikes:
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh my other idea is to weld a metal stronglight dust cover onto a standard crank puller to make the tool but i can't weld and don't know anybody who can.
Daveyates is offline   Reply With Quote
Old 10-25-10, 04:35 PM   #3
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 20,490
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 669 Post(s)
take it to the LBS if they invested in that tool you won't have to.
pay the modest service charge,
then put another crank on .. instead.
One that you do have the needed service tools for ...


http://store.velo-orange.com/index.p...ta-cranks.html

Last edited by fietsbob; 10-25-10 at 04:40 PM.
fietsbob is offline   Reply With Quote
Old 10-25-10, 04:48 PM   #4
Bianchigirll 
Bianchi Goddess
 
Bianchigirll's Avatar
 
Join Date: Apr 2009
Location: Camp Hill, PA
Bikes: Too many to list here check my signature.
Posts: 22,537
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 48 Post(s)
I don't like your idea. I think the spiders will have too much flex for it to work.

I agree. if you don't want to reuse the crank have ashop remove it and ebay for the cost of labor. if you want to reuse the crank again just go ahead and buy the tool.

PS I think I recall seeing self extractors to fit these somewhere. Milwaukee? Bike tools etc, loose screws? I just can't recall
__________________
Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SOLD, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

Last edited by Bianchigirll; 10-25-10 at 04:54 PM.
Bianchigirll is offline   Reply With Quote
Old 10-25-10, 04:57 PM   #5
peripatetic
Senior Member
 
peripatetic's Avatar
 
Join Date: Oct 2004
Location: NYC
Bikes: All 70s and 80s, only steel.
Posts: 2,124
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think it's fine. You just need to make sure that when you clamp the crankarm to the crank, it's a very tight and immobilizing fit, and the holes need to line up. Add a lot of duct tape. Perhaps you ruin the crank, but the alternative everyone is mentioning ends up with you getting new cranks anyway, so as long as your eyes are wide open about the possibility of losing the crank, then hey, it's your bike.

I'd screw the outside of the crank puller into the crank before clamping it to the Strongarm crank, btw. That way you don't mess with the threading while the two are attached.

(This thread might get better responses in the Classic/Vintage forum).

Last edited by peripatetic; 10-25-10 at 05:01 PM.
peripatetic is offline   Reply With Quote
Old 10-25-10, 05:05 PM   #6
Daveyates
Senior Member
Thread Starter
 
Daveyates's Avatar
 
Join Date: Apr 2010
Location: Paris France
Bikes:
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Well i really like the cranks so i'll be keeping them.
I just need to remove the cranks so that i can grease the BB bearings.
Thanks for the advice!
Daveyates is offline   Reply With Quote
Old 10-25-10, 05:08 PM   #7
bikeman715
Senior Member
 
bikeman715's Avatar
 
Join Date: Mar 2008
Location: Salinas , Ca.
Bikes: Bike Nashbar AL-1 ,Raligh M50 , Schwinn Traveler , and others
Posts: 2,436
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
check ebay or other online sites to find the right tool you are looking for.
bikeman715 is offline   Reply With Quote
Old 10-25-10, 05:20 PM   #8
Grand Bois
Senior Member
 
Grand Bois's Avatar
 
Join Date: Mar 2005
Location: Pinole, CA, USA
Bikes:
Posts: 16,696
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 90 Post(s)
Either find a shop that has the correct tool an pay them $10 to remove the crank or buy the tool so you'll be able to service your BB in the future. Bike Tools Etc had it last time I looked. That's a valuable crank. Check what they're going for on eBay. I've been looking for one one myself , but I won't buy one with gouges made by a shadetree bike mechanic.
Grand Bois is offline   Reply With Quote
Old 10-25-10, 06:08 PM   #9
Daveyates
Senior Member
Thread Starter
 
Daveyates's Avatar
 
Join Date: Apr 2010
Location: Paris France
Bikes:
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Grand Bois View Post
Either find a shop that has the correct tool an pay them $10 to remove the crank or buy the tool so you'll be able to service your BB in the future. Bike Tools Etc had it last time I looked. That's a valuable crank. Check what they're going for on eBay. I've been looking for one one myself , but I won't buy one with gouges made by a shadetree bike mechanic.
You are aware that you can ruin cranks with the correct tool as well aren't you?
Mine are not for sale and they certainly won't have gouges in them when i'm finished.
Daveyates is offline   Reply With Quote
Old 11-05-10, 02:47 PM   #10
Daveyates
Senior Member
Thread Starter
 
Daveyates's Avatar
 
Join Date: Apr 2010
Location: Paris France
Bikes:
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I ended up buying the proper tool.
I discovered my local bike shop sells new versions of a crank puller with two threads.
One standard and one for the 49D size for 23 euros.

Last edited by Daveyates; 11-05-10 at 04:29 PM.
Daveyates is offline   Reply With Quote
Old 11-05-10, 04:16 PM   #11
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 16,540
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 133 Post(s)
If you can't find a shop with the proper tool, try a pickle fork. Cover the prongs with an old inner tube to minimize damage to the crank and frame:


As others have mentioned, the crank has some value on the vintage market, so be careful with it.
JohnDThompson 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 10:58 AM.