[Closed] Cassette noise

Definitely cassette? Might be worth a check of your chainring bolts too

Saw the thread title and thought "Dolby"

Showing my age a bit, maybe...

freehub slipping?

fiver on freehub failing, for me - check the pawls/springs if you can

I had a similar load cracking, creaking noise from the rear wheel. After lots of head scratching it turned out to be the freehub. Poor sealing on my superstar hubs led to dirt and grime getting in there. Cleaned and regressed - noise vanished. Cant totally explain it but maybe the pawls were only partially engaging before jumping into position with a crack when you apply power...? Who knows

edlong - Member
Saw the thread title and thought "Dolby"

Showing my age a bit, maybe...

B,C or S?

Chrome or metal?

I'd suggest a head cleaner 😀

But more seriously, I assume it's not just the clonk of the freehub pickup?

It's bearing wear inside the freehub. What wheel is it? Try wiggling the biggest cog to see if there's play in the freehub.

What cassette is it? How much use? Some XTR M9000 users have experience creaking/cracking noises on their cassettes [url= http://singletrackworld.com/forum/topic/xtr-m9000-cassette-creaks ]HERE[/url]

Have you fitted a new cassette or new chain recently?

Poor sealing on my superstar hubs led to dirt and grime getting in there. Cleaned and regressed - noise vanished.

Seems a bit much seeing a psychiatrist just for a noisy freehub.

Have you checked your bottom bracket recently? I recently had a click I swore was my cassette. Took my cranks off to clean and the bottom bracket was stiffer than a randy man in a whore house.

Saw the thread title and thought "Dolby"

I always think "dobly" (spinal tap reference (also shows age))

I had a creak that everyone including me thought was coming from the BB area. It was a cracked freehub. It may be worth pulling the cassette off for a look.

Edited to add. Had a similar noise from another bike. That one was dirt on the spider/freehub interface on the biggest three rings of the cassette.

Also check the little bolts that hold the RD hanger to the frame.

Another vote for freehub.
Sounds much like my Hope one when it has been neglected a couple of months too long between services.

Thanks for the replies. It's a Shimano Deore FH-M615 feehub on the back wheel. Seems to be very minor play in the 36T sprocket when I wiggle it. Only happens when accelerating hard, sudden loud cracking noise under tension ? pretty sure it's not the BB. Bike has done about 2000 ish miles from brand new.

Does the freehub sound and feel rough as it rotates? If yes, the bearing has gone south and you need a new freehub.

As said above it's the freehub bearing. You will be cracking the bearing shell. Both my Hopes have gone this month.

wiggle it

Just a liddle bit?