Help with choosing the correct crankset

[philp74]

I have a giant defy 3 2010 model which i have cross threaded my crank on the same side as the drive train
i want to replace the set, i had a FSA Omega Megaexo 30 39 50 on the defy, but not sure what to look out for to replace it i have seen a shimano sora with the same chain teeth sizes and also a FSA vero triple roadset both on Chain Reaction Cycles, but will wither of these fit, please help!!

 

[swampy1970]

Originally Posted by philp74 .

I have a giant defy 3 2010 model which i have cross threaded my crank on the same side as the drive train
i want to replace the set, i had a FSA Omega Megaexo 30 39 50 on the defy, but not sure what to look out for to replace it i have seen a shimano sora with the same chain teeth sizes and also a FSA vero triple roadset both on Chain Reaction Cycles, but will wither of these fit, please help!!

If you've only cross threaded the first part of the pedal thread then the local bike shop or any machine shop will be able to retap the thread for you. You could always get a 9/16 x 20tpi tap from the local hardware store and run in through from the back of the crank - observing any instructions that require the use of a suitable oil during this process. A long bolt, run repeatedly throught the hole may also work just as well.

If it is just the first part of the thread then there'll be more than enough remaining undamaged threaded material to give a safe/strong hold on the pedal axle.

Use a good degreaser to clean the threads, "cutting oil" to lube before tapping and work slowly. When finished, clean any material 'cut' from the threads and remember to grease the pedal threads.

 

[maydog]

You or a bike shop may be able to repair the crank.

http://www.parktool.com/blog/repair-help/basic-thread-concepts
http://www.ehow.com/video_5773309_re_thread-bicycle-pedal.html
http://thegoldenwrench.blogspot.com/2010/12/repairing-stripped-pedal-thread.html
http://www.parktool.com/blog/repair-help/pedal-bushing-kit
http://biketoolsetc.com/index.cgi?id=623319426898&c=Shop-Aids&sc=Thread-Repair

The inserts themselves appear inexpensive, the taps are a bit spendy. Complete kits run about $100, but you could resell most of that, the taps are reusable and you only need one insert.