Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

FSA Vigorelli Cranks (Carbon Disc) Slippage Issues and Solution Help on Dissembling

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.

FSA Vigorelli Cranks (Carbon Disc) Slippage Issues and Solution Help on Dissembling

Old 09-01-12, 10:54 PM
  #1  
Elohite
stock audi
Thread Starter
 
Elohite's Avatar
 
Join Date: Feb 2009
Location: San Antonio, TX
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
FSA Vigorelli Cranks (Carbon Disc) Slippage Issues and Solution Help on Dissembling

So I Have the FSA Vigorelli Cranks as pictured below on my bike



I myself have the slight slippage issue that this particular model is known to have and has been discussed about.

I have read that the fix that FSA has done and what other have done is to disassemble to cranks and then JB weld the Carbon Disc to the spider and then red loctite the bolts when reassembling it to help reduce play. (If anyone who owns these cranks has done this did it solve the problem? Or did the play come back after bit?)

I was hoping to do this myself, but I am not sure how to disassemble the cranks. I tried placing a appropriate sized hex into it attempts to loosen it with no luck so I was hoping someone could share with me the proper process and tools I may need to do this correctly. I tried seeing in anyone had posted a guide to doing this via forum searches and youtube videos but I was not able to come up with anything. If someone could perhaps tell me the step by step method to disassemble it so I can do the JB weld fix I would greatly appreciate it.

I was also wondering if it was a possible solution to just replace the Carbon Disc (which many have discussed is the cause of the slippage issue due to poor design) with new arms?
For example replacing it with something traditional like these:



OR should I just start looking for a new crankset? And if so maybe someone can give me some recommendations. My only requirement is that they are good quality and must be all black

Thanks in advance!

And here's the bike I am riding!

Attached Images
File Type: jpg
fsa2.jpg (51.9 KB, 23 views)
File Type: jpg
cranks_black_alloy.jpg (10.8 KB, 12 views)
File Type: jpg
photo 2 (5).jpg (96.5 KB, 27 views)
Elohite is offline  
Old 09-01-12, 11:07 PM
  #2  
striknein
Goes to 11.
 
striknein's Avatar
 
Join Date: Oct 2010
Location: Wichita, KS, USA
Posts: 2,548

Bikes: 2015 Soma Double Cross

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You need a chainring bolt spanner.



See the notch on the back side of the chainring bolt?



This tool fits on the back of the nut to provide leverage when tightening the bolts. Also, apply a little loc-tite to the bolt threads and torque them properly to prevent them from working loose. Try that before potentially destroying your crankset and chainring.
striknein is offline  
Old 09-01-12, 11:28 PM
  #3  
Bat56
Senior Member
 
Bat56's Avatar
 
Join Date: May 2010
Location: St.Paul, MN
Posts: 1,780
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Do you have the crank off the bike already?
Bat56 is offline  
Old 09-01-12, 11:42 PM
  #4  
Elohite
stock audi
Thread Starter
 
Elohite's Avatar
 
Join Date: Feb 2009
Location: San Antonio, TX
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
^ No I do not have it off the bike yet. I need to purchase the above tools that striknein posted tomorrow which I assume the LBS will have.

Will it be ok to attempt to the JB weld process with the cranks on the bike still or should I remove the whole crankset while I attempt this?

I have never removed a crankset before either, but it seems like a pretty straightforward process (With the right tools). Do I need any special tools to do this?
Elohite is offline  
Old 09-02-12, 08:32 AM
  #5  
Bat56
Senior Member
 
Bat56's Avatar
 
Join Date: May 2010
Location: St.Paul, MN
Posts: 1,780
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
You need a crank puller. Google that, you'll figure it out.

Make sure the puller is Isis comPatible bc I think your crank is Isis not square taper like the replacement you pictured.

Its also not 100% that you need the crank bolt tool. Some bolts are hex on both sides.

I cannot tell u if you can attach the carbon piece to the crank without removing the works from the bike. I've never seen the crank. Regardless, even if you can, you shouldn't.
Bat56 is offline  
Old 09-02-12, 08:40 AM
  #6  
Scrodzilla
See you in Hell.
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: South of Heaven
Posts: 25,949

Bikes: EAI Bare Knuckle

Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Moving to mechanics.
Scrodzilla is offline  
Old 09-02-12, 03:01 PM
  #7  
dsbrantjr
Senior Member
 
dsbrantjr's Avatar
 
Join Date: Sep 2010
Location: Roswell, GA
Posts: 6,037

Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 591 Post(s)
If you decide to buy a spanner for the chainring nuts the Shimano TL-FC21 (or TL-FC20 pictured above) is the one to get. The others I have tried were from cheesy metal, do not fit the nuts as well and are liable to strip them especially at removal time.
dsbrantjr is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.