This is a thread about parts we all want to forget and we want to warn others not to buy and/or use. I think it's fine if we will write about parts that are not necessarily specific to e-MTBs. But of course these should be things that exist in e-MTB word.
I want to start with an abomination which is SRAM's 12 speed GX 1275 cassette.
Since last 12 months I had a doubtful pleasure of trying out exactly 5 of these. The problem with those cassettes is the wobble that is particularly pronounced on 11th and 12th cog (two biggest cogs). It is humanly impossible to set the drivetrain to do it's job with this cassette installed. The wobble makes it impossible. There will always be a gear that is making clicking noise or drop to other gear. All cassettes I tested were installed properly without cross threading.
There is some speculation why is it like that. That XD driver was supposed to be used only in mono-block cassettes. I have no idea if it is true or not, but the fact is that this part is absolutely horrible. Waste of money, nerves and time. It gets my full score of 5 points of horribleness.
The wobble I'm talking about looks more or less like this:
I don't want to throw whole SRAM's drivetrain under the train. Their shifters and derailleurs are fine. Their 400 something EUR top shelve cassettes are also fine. NX cassette that is made for regular HG driver is OK (just prohibitively heavy). But GX 1275 is simply a no go. DO NOT CONSIDER BUYING THIS PART.
I want to start with an abomination which is SRAM's 12 speed GX 1275 cassette.
Since last 12 months I had a doubtful pleasure of trying out exactly 5 of these. The problem with those cassettes is the wobble that is particularly pronounced on 11th and 12th cog (two biggest cogs). It is humanly impossible to set the drivetrain to do it's job with this cassette installed. The wobble makes it impossible. There will always be a gear that is making clicking noise or drop to other gear. All cassettes I tested were installed properly without cross threading.
There is some speculation why is it like that. That XD driver was supposed to be used only in mono-block cassettes. I have no idea if it is true or not, but the fact is that this part is absolutely horrible. Waste of money, nerves and time. It gets my full score of 5 points of horribleness.
The wobble I'm talking about looks more or less like this:
I don't want to throw whole SRAM's drivetrain under the train. Their shifters and derailleurs are fine. Their 400 something EUR top shelve cassettes are also fine. NX cassette that is made for regular HG driver is OK (just prohibitively heavy). But GX 1275 is simply a no go. DO NOT CONSIDER BUYING THIS PART.
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