BikeisLife Posted November 7, 2017 Posted November 7, 2017 Hi everyone, Went for a ride on Sunday and started climbing a hill, my chain then started jumping so thought my gears just needed to be set properly again. Anyways, just had the chance to do that now and discovered that my 46t ring on my sunrace cassette has a bend over about 3t so the chain is picking up the 46t when I’m one gear below and when I’m on the 46t it almost throws the chain over into the spokes. My question, can this be straightened or am I in for a new cassette? Still unsure how I have even achieved this.. Thanks!
Pah Bear Posted November 7, 2017 Posted November 7, 2017 Very interested in the possible reason the 'bends' happened. Did you have a fall, pack away the bike during transport that could have resulted in damage, or ...? Really doubt if you can successfully correct that bend. The metal is made lighter and thinner to cater for "bigger" gears. Not sure if that weakening will not continually then reoccur. Hope someone can give you better news. Best of luck
MphatiPyga Posted November 7, 2017 Posted November 7, 2017 Eish sorry man, same thing happened to me but was on my XX1 cassette, it became a disposable item????. I suspect mine came from the garden maintenance executive reorganizing my garage resulting in a bit of a crush.
bikebloke Posted November 7, 2017 Posted November 7, 2017 cross chaining? - cassette is shot you cant bend them straight except to get you home then its time for a new one
fanievb Posted November 7, 2017 Posted November 7, 2017 maybe something like this? (but it may just bend again)
BikeisLife Posted November 7, 2017 Author Posted November 7, 2017 Very interested in the possible reason the 'bends' happened. Did you have a fall, pack away the bike during transport that could have resulted in damage, or ...? Really doubt if you can successfully correct that bend. The metal is made lighter and thinner to cater for "bigger" gears. Not sure if that weakening will not continually then reoccur. Hope someone can give you better news. Best of luckStarted a ride, was 100%, no crashes or any the above then by the end of the ride, I had no granny gear up a very steep climb. Not sure on the cause at all.
BikeisLife Posted November 7, 2017 Author Posted November 7, 2017 cross chaining? - cassette is shot you cant bend them straight except to get you home then its time for a new oneI’m running 1x11 so not too sure how I would have cross chained.. Gonna try take the cassette off and split it up and try bend it straight with some pliers. Can’t afford a new cassette right now and this one has minimal mileage on it.
BikeisLife Posted November 7, 2017 Author Posted November 7, 2017 cross chaining? - cassette is shot you cant bend them straight except to get you home then its time for a new oneI’m running 1x11 so not too sure how I would have cross chained.. Gonna try take the cassette off and split it up and try bend it straight with some pliers. Can’t afford a new cassette right now and this one has minimal mileage on it.
Odinson Posted November 7, 2017 Posted November 7, 2017 cross chaining? - cassette is shot you cant bend them straight except to get you home then its time for a new one I sincerely doubt the OP is running a multiple configuration with a 46T cassette.
bikebloke Posted November 7, 2017 Posted November 7, 2017 I’m running 1x11 so not too sure how I would have cross chained.. Gonna try take the cassette off and split it up and try bend it straight with some pliers. Can’t afford a new cassette right now and this one has minimal mileage on it.ok was just a guess - ive seen it on a road cassette - bent straight to get home with a multitool . be careful if you rebend it straight - it will weaken the cog and it could snap under load of pedalling.and you haven't figured out why it happened and if its weak from rebending and it happens again it will snap - that will not be good
BikeisLife Posted November 7, 2017 Author Posted November 7, 2017 Could chain-line be a possible cause?
Headshot Posted November 7, 2017 Posted November 7, 2017 Hi everyone, Went for a ride on Sunday and started climbing a hill, my chain then started jumping so thought my gears just needed to be set properly again. Anyways, just had the chance to do that now and discovered that my 46t ring on my sunrace cassette has a bend over about 3t so the chain is picking up the 46t when I’m one gear below and when I’m on the 46t it almost throws the chain over into the spokes. My question, can this be straightened or am I in for a new cassette? Still unsure how I have even achieved this.. Thanks! This happened to me with the 42 tooth also with a Sunrace cassette. It happens because the rings are large and made from bendy steel rather than stiff alloy. Its not a huge problem though and the people who claim the cassette is toast have more money than sense. Just bend the cassette cog straight as I did at the trail side. Mine worked better than before after that making me think it had been partially bent for a while before.
Jewbacca Posted November 7, 2017 Posted November 7, 2017 This happened to me with the 42 tooth also with a Sunrace cassette. It happens because the rings are large and made from bendy steel rather than stiff alloy. Its not a huge problem though and the people who claim the cassette is toast have more money than sense. Just bend the cassette cog straight as I did at the trail side. Mine worked better than before after that making me think it had been partially bent for a while before.Exactly the same experience... My chain line WAS wrong though. Bend it back slowly and gently with an adjustable spanner. I got another 1500km out of mine. Just make sure you keep your pedal strokes nice and even.
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