Bicycle Mechanics - Disbonded pedal insert

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




View Full Version : Disbonded pedal insert


razorbackrider
02-23-10, 09:12 AM
Hello,

I just purchased a neused road bike and it has FSA carbon cranks, there were no pedals on the bike when I bought it but when I got home and put the pedals on, it appears the pedal insert is disbonded. Is this repairable or not worth it? or is FSA a decent company and they might fix it? I dont have a receipt and the guy I bought the bike from doesnt have a receipt either.
Please give me some advice!
Thanks Dusty


DannoXYZ
02-23-10, 01:07 PM
Is the insert just loose in the crankarm? Or is it so loose that it falls out?

Personally I would return it to the seller and get my money back. Who knows how many other parts on that bike are damaged and will need to be replaced. The cost will add up quickly to the point where it would've been cheaper for you to just buy a brand-new bike.

24/7biker
02-23-10, 01:14 PM
it wouldnt hurt to contact FSA to see if they can do anything to help you out. If FSA can't do anything then you might be able to use some type of epoxy to repair the pedal insert.


Kimmo
02-23-10, 06:00 PM
I'd try to avoid having to fix it if at all possible, but if you're stuck with it then yeah, do some research into the different types of epoxies.

operator
02-23-10, 08:51 PM
I'd try to avoid having to fix it if at all possible, but if you're stuck with it then yeah, do some research into the different types of epoxies.

I would exhaust repair options from FSA themselves before attempting hack DIY fixes.

Kimmo
02-23-10, 10:55 PM
That's like, pretty much exactly what I meant : |

linkysys
03-28-11, 01:17 PM
You might be able to mechanically remove the play by installing a large (14mm) washer between the pedal and the crank arm. I wish I could source a Titanium washer for this purpose. Warranty is only 2 years, so good luck.

I would like to hear less cludgy solutions to this problem which affects a lot of carbon cranks. Would it be possible to drill a small hole through the edge of the crank to the insert and inject glue around the insert? Can the crank be heated (450F) and then pressed/squeezed around the insert to re-bond?

Have any of the carbon repair shops (Calfee, Ruckus, etc.) sorted out a repair? Grind the carbon down to the top of the insert and then rebond with a carbon patch?

This problem affects FSA K-force and Campagnolo Record UT cranks.

jimc101
03-28-11, 01:24 PM
Didn't we answer a similar issue to this last week with frame damage!

Go back to the seller an get a refund, if you can't, buy a replacement crank.

Doubt it would be worth repairing vs replacement cost, and FSA should say no to any warranty request's as you are not the origianal purchaser.

Would suggest in future when purchasing 2nd hand, to make sure what you get works before paying.

Burton
03-28-11, 01:45 PM
You might be able to mechanically remove the play by installing a large (14mm) washer between the pedal and the crank arm. I wish I could source a Titanium washer for this purpose. Warranty is only 2 years, so good luck.

Not sure why you think this might work but since you do - FSA actually did make pedal washers as per your description and they were provided with their carbon cranksets. Obviously that didn`t solve everyone`s issues.

But you can contact them anyway. Ask for `pedal washers`. That`ll be stamped right across the washers.

JiveTurkey
03-28-11, 05:14 PM
I just purchased a neused road bike

What does this mean? If it's a new bike from a store, then, yes, take it back. If it's a used bike from some guy, then I doubt the OP can take it back; like the private sale of most used things, it's "as-is."

JanMM
03-29-11, 04:32 PM
Apparently I am out of touch with language: 'neused'
http://www.urbandictionary.com/define.php?term=Neused&defid=4124393

HillRider
03-29-11, 07:45 PM
Apparently I am out of touch with language: 'neused'
http://www.urbandictionary.com/define.php?term=Neused&defid=4124393
Interesting. I'd never heard that term before either. I guess what we used to call such things is "like new".

fietsbob
03-29-11, 08:40 PM
just go buy a new crankset & bb, and replace it , chalk it up to 'some bargains
are not as expected'.

might have had rough handling when 'it fell off the Truck'..