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My wife’s NX shifter has exploded after 10 rides. The downshift lever became loose and stopped shifting. I undid the bolt at the bottom and the spring is bent. Is this a common thing? Is it mendable??
I'd go with them being a bit crap. My Trek came with full 12 speed NX, it's about 18 months old now and pretty lightly used in that time. The gears are the worst part of the bike for me. Fair enough that 12 speed is going to require some fine tolerances, but this set up seems hyper sensitive. Last week the shifter mechanism gave up on a ride. In a middle gear and it just all locked up. Still ride able as a singlespeed fortunately. When I got home I stripped the shifter down and rebuilt it about four times before it started to work again, not certain what was originally wrong, or what went wrong with the reassembly the first few times. It worked OK the next ride, though it needed re-indexing post ride to get all gears. I think the original problem was that the return spring for the thumb shifter had become twisted perhaps, but not at all sure.It wasn't bent, but it wasn't in a neat coil either. I've started pricing up a swap to SLX shifter and mech. About £90 from Merlin sounds OK, assuming it works OK with the cassette & chain.
Yeah ours did the same thing. The return spring was a mess.
I agree
They also eat cables
Presumably that’s a warranty claim?
Then sell it and buy gears that work. I had NX 11 speed on my Levo. Ok when brand new. Stopped being ok fairly quickly.
I got a complete bike an year ago which came with a NX drivetrain. It's comically bad compared to the XT M8000 1x11 I had before.
The only Sram component I like over Shimano are the Code brakes.
I refuse to give a single penny to Sram for drivetrain parts, and urge everyone with likewise experiences to do the same. Let's rather give money to companies that actually bother to make proper kit
a GX shifter should be a straight swap? mines 2 years old and no problems.
Following on from my earlier post, I went for a two hour ride tonight and the gears never missed a beat. So the shifter can be stripped and rebuilt successfully, no idea if you'll be able to source a spare spring though if it is not recoverable. Still think I'll be upgrading to SLX imminently.
You shouldn’t have to do that though, it should work.
Ten rides. Pretty poor. I’ve never had a Shimano shifter break in 35 years of riding. The large spring inside isn’t even made of spring steel: you can bend it by hand.