the gears to skip when i put any kind of power down?
New chain, newish cassette, jockey wheels are ok, new cables.
Shifts perfectly and pedals well until it goes into the middle ring position (dual setup) and i stand up and pedal or put some effort in – bottom 4 cogs on the cassette. Higher up its ok but the chain is under more tension.

not really…..sounds like cassette problems to me mate….

worn chain ring can cause skipping, happened to me after i replaced a rear cassette and chain. chain ring was about 3 years old, replaced the middle one and all was good!

how would that cause it to slip on the cassette…..

New chain newish cassette, think that’s your problem. You can’t go on how it looks.

New chain newish cassette, think that’s your problem. You can’t go on how it looks.

+1

how would that cause it to slip on the cassette…..

It didn’t. But slipping on the chainring feels awful like it’s slipping on the cassette. I chucked a perfectly good rear cassette away because of it as i was convinced it was the cassette and it was slipping like described above(only on certain gears, not all.).

it does state that it is slipping on the cassette…..

it does state that it is slipping on the cassette…..

not with any great certainty, hence the question about the front chain ring.

I think the give away is that it slips on the bottom 4 sprockets. That can only be a worn cassette.

please read his post more carefully…..

I think the give away is that it slips on the bottom 4 sprockets. That can only be a worn cassette.

experience tells me different. Now i’m not saying that’s the OP’s problem, but i’m just saying that it is possible for a worn chain ring to cause the above symptoms.

a worn chainring wouldnt cause slipping on a cassette….

But slipping on the chainring feels awful like it’s slipping on the cassette.

As i say it’s quite easy to mistake one for the other.

keep digging….

I had the same years ago and could have sworn it was the cassette. One new chainring later and all was good again.

when my chainrings are **** they slip no matter what gear im in …..

when my cassettes **** it will slip in just the worn gears ….

in this case 5-9 ….

keep digging….

what am i digging? i’m recounting something that actually happened. It’s up to the OP to decide if that’s his problem or not.

would a worn chainring cause the gears to slip on the cassette……

You should read my posts properly…

you should read the question more carefully…..

you should stop being a tadger.

sticks and stones…..

Stand bike against a wall, with a wall in front for the front wheel to rest against, put he chain on relevant cog,on cassete, now mount bike, and try exerting force on pedals, ask a mate to see if chain slips on the chain wheel or cassette, but from experience its probably the freehub, that the cassete runs on.

Just to add a different dimension.

Gears slipping in the bottom half of the cassette a few months after a new one & new chain and cables, plus chainrings changed a month or so earlier … after much faffing LBS replaced the XT shifter and, hey presto, problem solved.

Not always the answer, but worth looking at.

What I am saying is that it slips when their is less tension in the chain. The bottom half of the cassette us under less chain tension. I think it is slipping up front tho

Freehub.

Freehub is fine

Had the same problem as you Cruzheckler. Replaced cassette and chain, no difference. Then changed chain ring and all was good!

Well as a new chainring is cheapest that is option a

What is the bike, would be an Orange 5 or Patriot with the gear cable routed through the swing arm?

Sounds like a chainring to me FWIW. I’ve had new chain, cassette, jockey wheel chain skip rage before and a new middle ring resolved it.

Might be a good time to go 36/39T with a bashring?

Got 22/36 bash on a Heckler

Turns out it was tthe worn chainring – swapped for a 36t deore steel and all is good

Yip , had same problem just the other night , had just fitted new chain but noticed cassette and 36 chain ring badly worn as my chain although only 6 months old was well stretched, should have changed it ages ago- lesson learned . When out riding it jumped / skipped really badly when up on the pegs or under strain. Didn’t help my healing shoulder . Have ordered new cassette and chainring but in meantime went to the bin and dug out old knackered chain , went out this afternoon and there was no skipping .

I had exactly that issue. New Cassette, New chain and still slipping, middle ring was worn replaced it, all good.