Slipping (new) cassette
secretsam
Posts: 5,120
Fitted a new cassette to the old Sirrus the other day, plus new chain, took the opportunity to upgrade the wheels at the same time 
(had a pair of Fulcrum R7s lying around)
Anyway, this morning rode into work, all fine until I got to the end - pulling away from some lights I had massive chain slip, which happened 2-3 times pulling away from lights. Am sure I fully tightened the cassette, so what might it be????
(had a pair of Fulcrum R7s lying around)Anyway, this morning rode into work, all fine until I got to the end - pulling away from some lights I had massive chain slip, which happened 2-3 times pulling away from lights. Am sure I fully tightened the cassette, so what might it be????
It's just a hill. Get over it.
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Comments
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Is your chain the correct length?Sometimes parts break. Sometimes you crash. Sometimes it’s your fault.0
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Do you think it might be slipping on an old chainring rather than a new cassette?0
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Have you re-indexed the rear mech since changing the wheels? could be the new cassette is slightly further in or out resulting in some ghost shifting.Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0
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Both worn chainrings and re-indexing may be an issue, although the rear mech seems to be changing OK
Chain slips 'up and down' the gears before settling, at least that's what it feels like
It's just a hill. Get over it.0 -
You MUST re-index when changing wheels, the cassette can be as much as a whole tooth out due to differences between wheels and where they put the freehub (On my MTB going from a Shimano hub to a Trizoid the indexing was out by exacly one gear). Sounds to me like that is your problem.Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0
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Right
De-greased the chain and took out a couple of links, no good.
Am beginning to wonder if I put the cassette on tightly enough...
It's just a hill. Get over it.0 -
Start with the obvious! Index the gears.
Unless the cassette is moving, it's on tight enough (lockring torque - it can't rotate, the splines top that!)Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0 -
The Rookie wrote:Start with the obvious! Index the gears.
Unless the cassette is moving, it's on tight enough (lockring torque - it can't rotate, the splines top that!)
Sigh
Anyone got a YouTube guide on "Gear indexing for flummoxed idiots stuck in the 80s"?????
It's just a hill. Get over it.0 -
