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Gave my bike a good clean this morning after a muddy night ride last night, and noticed a few teeth missing off the largest sprocket. Maybe 4 or 5 missing and a couple of others a bit rounded off. All the other gears appear to be OK. It feels fine to ride and the chain isn't slipping. It's an SLX 1 x 11 46T, The bike is a 2018 Giant Trance 2 and was new to me in December just gone. It was a bike shop demo bike but was in fairly pristine condition. I'm reasonably sure, but not 100% that it wasn't damaged when I got it. I've ridden it 2 or 3 times a week since I got it in mid December and I'm not aware that I've given it a particularly hard time other than a few very muddy rides. This is my first bike with a 1x drivetrain. Is this normal? Can I replace the damaged sprocket only or will I have to replace the cassette?
It's fine, it's part of the tooth profile on the 11-46 cassettes, my XT is the same and if you look at Google at a new one you will also see that it is the same too
Are you sure they are missing and not just manufactured that way to enable shifting?
Questioning my sanity here, just been back out the garage and looked again. Definitely missing. Looked at Google images and I can see where the teeth have different profiles, but these are missing completely. I've taken some pics but don't have an image hosting account so can't post them without a massive faff.
use tinypic hardly any faff and free
Ooh, hang on. Looked at some more pics now and not so sure! Numpty alert!
You'll not be the first. I've had folk bring back brand new bikes due to "missing teeth" - and I don't mean because they've been over the bars hauling on the brakes too hard.
I'm waiting with baited breath now.
This is worse that Brexit!
(It really isn't)
I’m waiting with baited breath now.
This is worse that Brexit!
(It really isn’t)
Breathe in! Hangs head in shame as the magnitude of his schoolboy error dawns on him 😊
Think of the weight savings.
Bet its the shifting ramps. I have a 2017 trance 2 with the 11-42 slx cassette. A mate tried ribbing me that I'd already stripped some teeth off until I pointed out they were at equidistant points on the cog. Are they similarly spaced around the cassette? If so they'll be the shifting ramps.
I made the same mistake. Bought deore 11-42 cassette, went for a ride and when cleaning noticed bits missing from teeth, Came on here and yes they are meant to be like that.
I feel your head hanging, school boy error shame...