Blake Posted October 23, 2011 Report Share Posted October 23, 2011 Well basically I managed to strip the pedal threads in my crank today, very sad, and unfortunitly it's not just a case of new cranks, because my cranks have a funny sized thread on them. In order to screw my freewheel onto my cranks, I have to use a brass insert, and I think it's impossible to remove this brass insert once it's in the freewheel. so basically what cranks have got a slightly smaller thread size on them? If it helps I have 170 ZHI cranks...... Can anybody shed some light? sorry if it's hard to understand, if you want anything explained I will do my best to explain it. Thank you. Quote Link to comment Share on other sites More sharing options...
Rob Leech Posted October 23, 2011 Report Share Posted October 23, 2011 Would you be able to post a picture of the freewheel with the insert in it? Surely if the insert is externally threaded, you can screw it out of the freewheel? Or even cut it out and chase the threads in the freewheel? Anyways, pictures would help alot Cheers, Josh. Quote Link to comment Share on other sites More sharing options...
Blake Posted October 23, 2011 Author Report Share Posted October 23, 2011 Will try my best to get pictures tomorrow when it's light Quote Link to comment Share on other sites More sharing options...
skunky_bifta Posted October 24, 2011 Report Share Posted October 24, 2011 (edited) Surely if the insert is externally threaded, you can screw it out of the freewheel? I changed my cranks on the weekend and my onza cranks had this insert, and Rob's right it should jus screw out, i changed to try-all cranks which do not need the insert. I found it harder getting the freewheel off the cranks rather than removing this brass insert. So you'll b fine mate! Edited October 24, 2011 by skunky_bifta Quote Link to comment Share on other sites More sharing options...
Blake Posted October 24, 2011 Author Report Share Posted October 24, 2011 How can it screw out though? What do I need to unscrew it? Quote Link to comment Share on other sites More sharing options...
Mark W Posted October 24, 2011 Report Share Posted October 24, 2011 I had a similar issue - I unscrewed the freewheel/insert off, put some locktite on the threads and tightened it back on. That held the insert enough to allow me to get the freewheel off. Depending on the material of the arm, we offer a pedal thread helicoiling service. Quote Link to comment Share on other sites More sharing options...
Blake Posted October 24, 2011 Author Report Share Posted October 24, 2011 I had a similar issue - I unscrewed the freewheel/insert off, put some locktite on the threads and tightened it back on. That held the insert enough to allow me to get the freewheel off. Depending on the material of the arm, we offer a pedal thread helicoiling service. How much is your pedal helicoling? as new cranks are a bit much..... Quote Link to comment Share on other sites More sharing options...
Mark W Posted October 24, 2011 Report Share Posted October 24, 2011 It depends on which side it is (the actual helicoil varies in price), but yeah, definitely a lot less than a new pair of cranks... Quote Link to comment Share on other sites More sharing options...
Blake Posted October 24, 2011 Author Report Share Posted October 24, 2011 It depends on which side it is (the actual helicoil varies in price), but yeah, definitely a lot less than a new pair of cranks... Right hand crank, with the freewheel on, I just hope I haven't removed too much metal? Quote Link to comment Share on other sites More sharing options...
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