xt cassette durability

swod1

l’ve been using an xt 10 speed cassette since i upgraded to 10speed this year and im wondering what everyone thinks to the durability of these.

Why i ask this is tonight in the awful weather riding home from work, the xt cassette failed on my bike, how you will ask?

The 4th and 5th largest spocket broke off the alloy carrier, it looks like the rivets fixing them to it broke.

Managed to get home on limited gears but im wondering how it failed, at the time it went i was going up a hill in the middle ring up front in either of those gears cant remember which and wasnt putting massive pressure on the cranks.

Once home i check the rear mech and the pulley wheels were inline with the spocket etc to see if i could see any obivous but i couldnt. kmc chain is couple of months old and no slipping of gears.

I’m not impressed at all, i thought these were meant be quality components, i’m already put off shimano chains not being durable.

i ran an slx cassette before on 9 speed and these seem better built.

Any ideas why this happened? I’m looking at offers on crc and think im going to go back to slx cassette and kmc chain.

supersonic

Not seen this happen before. They are thinner and lighter than say Deore. I find commuting though corrodes things far faster than offroad riding, all the shite and spray on the roads is nasty stuff.

The Rookie

A ride on a wet salted road is really not good for a bike......

stubs

I am a fat fuck and beat the carp out of my transmission when climbing and my current XT 10spd has lasted about 14 months and 2 chains. I reckon they are pretty tough.

kajjal

Sounds like an unlucky manufacturing fault or this would be happening all over the place. I just use SLX for my mountain bike cassettes as durability is more important than a small weight saving.

swod1

Kajjal wrote:

Sounds like an unlucky manufacturing fault or this would be happening all over the place. I just use SLX for my mountain bike cassettes as durability is more important than a small weight saving.

yeah maybe i was unlucky, i’m going to put an slx cassette on as im not fussed about weight saving.

The Rookie wrote:

A ride on a wet salted road is really not good for a bike......

guess i need to go over my bike more often in winter.

supersonic wrote:

Not seen this happen before. They are thinner and lighter than say Deore. I find commuting though corrodes things far faster than offroad riding, all the shite and spray on the roads is nasty stuff.

i have seen on crc review on the xt cassette that they have had sprockets break too but not a major issue just wear people have comented on.

yes im looking at getting another bike for winter riding to work as my summer route is off road which is far less harsh on bikes.

The Rookie

Kajjal wrote:

Sounds like an unlucky manufacturing fault or this would be happening all over the place. I just use SLX for my mountain bike cassettes as durability is more important than a small weight saving.

Is there anything to suggest SLX is more durable rather than just heavier?

kajjal

I have found more expensive cassettes wear faster for me but I am a taller and heavier rider than most.

The Rookie

Nothing I have seen suggests XT wear faster than SLX (or LX as was), XTR is a different material and may do.

kajjal

For me it was the more expensive sram cassettes that wore more quickly.

The Rookie

Lol, cheaper SRAM cassettes wear quickly as well!

kajjal

The Rookie wrote:

Lol, cheaper SRAM cassettes wear quickly as well!

rockmonkeysc

I have been using XT cassettes for years with no problems but a mate has had two fail like this, rivets sheared. It's a bit odd but it does happen.

Dirtydog11

Send it back it's covered by a two year warranty, cogs wear but rivets shouldn't break!

swod1

RockmonkeySC wrote:

I have been using XT cassettes for years with no problems but a mate has had two fail like this, rivets sheared. It's a bit odd but it does happen.

yeah, its just an odd thing to happen and annoying as the sprockets weren’t even worn either

I’ve ordered a new slx cassette and chain as the crc offer is rather good, i dont really need to use an xt cassette, slx will be fine.

swod1

Just a quick one but do 10 speed slx cassettes not use a plastic spacer like they do on the 9speed version ?

Just checking before I put it on the new cassette I bought from crc as its just come in a brown box so isn't a retail boxed version.

The Rookie

Check the Shimano techdocs website, it will tell you all the parts that should be in there for the particular range of gears you have (different largest sprocket can change how the whole cassette is made up).