About a quarter mile from home today the driveside pedal on my Roadrat started to feel 'weird' - coasted home and found that the pedal had come lose, and as it is a steel spindle in an aluminium crank, it was the crank thread that was stripped, not the £20 pedal.
The bike is new - probably done 300-400 miles over the last 2 months so part of me thinks this should be a warranty case, but the counter argument is that threads don't strip themselves so I must have done something wrong!
I'm pretty sure I haven't cocked up - given the steel/aluminium combo and the fact the pedals have a 8mm hex key rather than spanner flats I've been hyper-aware to make sure a) the thread is properly greased and b) I don't over tighten it and strip the threads.
Given a new crankset is about £100 quid I'm not sure it is worth the time it would take to go through a warranty claim, particular as it is my main mode of transport to and from work!
On a related note, I do have a raceface 1x crankset in the garage in preparation for a future build - any reason why I couldn't use that with a 38T or 40T narrow-wide chain ring? The bike has an Alfine hub gear - should I anticipate any issues with getting the chain line sorted?
You haven't really suggested how or why it could be a warranty?
The differing materials are not relevant.
Sounds like you fitted them without doing so tight enough. FYI it's pretty hard work to over tighten a pedal into a crank to the point where you strip it. Not sure what the correct torque but it's pretty firm!
Only way it could be a warranty is if the pedal was pre fitted when purchased.
Only way it could be a warranty is if the pedal was pre fitted when purchased.
This.
If you've fitted the pedals you've either cross threaded them or not done them tightly enough. Neither of those is a warranty issue. They won't have spontaneously stripped from properly tightened.
you can get the cranks fixed I think the things are called helicoils
And while you're at it you might want to file down the end of the pedal where you dropped it and bent the thread.