SRAM XO T-type chain wear

[bikerider]

I have the SC Heckler 9 EMTB with the Shimano E801 motor, XO drive train and the new AXS transmission. The other day the chain popped off the chain ring which was a first. Checked the chain guide which was OK. It popped off a couple more times on the next ride. After thorough inspection I found that the chain was worn beyond recommended specifications. This was the original chain with 740 miles on it. Wow! I love this bike though. The drivetrain is awesome.

 

[TimC7]

Sounds a reasonable mileage FWIW.

 

[bikerider]

Sounds a reasonable mileage FWIW.

Thanks. This is my first EMTB, so I'm not used to having to replace a chain this soon. But taking into consideration that with a motor, there is extra force being exerted on the drive train, it does seem reasonable as you say. More weight, more power, more wear.

 

[TimC7]

Thanks. This is my first EMTB, so I'm not used to having to replace a chain this soon. But taking into consideration that with a motor, there is extra force being exerted on the drive train, it does seem reasonable as you say. More weight, more power, more wear.

The consensus seems to be a cassette will need replacing every three chains . . one option is to have three chains and rotate them to even the wear.