Bicycles Stack Exchange
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Questions tagged [cassette]

A cluster of sprockets, commonly 5 to 12 of them, attached to a freehub on the rear wheel.

Multi-geared bicycles often use a 'cassette' of sprockets which slide onto a splined freehub body. This system has largely replaced the screw-on cogset used on older models. There are usually between 5 and 12 sprockets in a cassette, and ratios vary widely based on intended application.

Cassettes are referred to as a Block by the English, more so amongst the older generations.

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What is the meaning of 11-32 cassette and 12-25 cassette?

I'm willing to buy a 2015 Shimano 105 groupset and i have got 2 options in choosing the cassette, the first is 11-32 and the other is 12-25. I have no idea what these numbers indicate and which one would be more suitable for me knowing that i'am…
Ramy
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How do I determine if my cassette is worn

I know how to check a chain but how do I check a cassette. Can you visually tell?
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Why the wobbly/loose cassette?

Why is my used Ultegra 10-sp cassette wobbly to the touch on a new Ambrosio hub? All spacers present/correct and 11-sprocket well-seated before torquing 40nM lockring. I tried another (used) 10-sp 11-21 cassette on the same hub and there is no…
VaVaVeteran
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If I change my cassette to a different range do I need to change my chain?

I have a Shimano 8 speed 11-34 cassette (one of those "mega range" ones). If I change my cassette to a different one, say an 11-32, will I need to change or otherwise modify my chain? I just got the chain replaced and now it's slipping on the old…
Michael Stachowsky
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Wahoo Kickr cassette question

I just bought the Wahoo Kickr, but I have a compatibility question. I have a Trek Madone 4.7 fitted with a Shimano 105 11-28, 10 speed cassette. Just when I think I understand whether I can make this work, I get myself confused again. Will the Kickr…
Gigi
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How do I identify what cassette type I have?

My chain was jumping and I looked at my cassette, let's just say it needs a lot of dental work. So I need a new cassette and a new chain but can't find specs for the cassette type for my bike. So what should I look at to identify what type it is in…
Eric Huelin
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Are there real use of the lowest bicycle speeds?

I'm confused about the speeds amount in my bicycle. There are totally more than 20 different speed configuration on my bicycle, but are there any practical use of such speeds as 1-1, 1-2, 1-3, 2-1. What are that crazy places to use these speeds in…
fixerlt
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Rear Cassette compatibilty

I have a Cannondale Topstone 3 with 9 speed Sora Rear 11-34 Front 46/30 I was wondering if I could fit a 11-36 cassette to help with hill climbing. I'm not at all technical with specs so any advice would be fantastic.
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Can I replace my 10 speed Shimano cassette with a 9-speed Shimano cassette on a Bontrager non-specific 10 speed hub

I removed a Shimano HG 10 speed cassette from my Bontrager rim and it has a indexed spacer below the 10 speed cassette. I want to install a Shimano HG 9 speed cassette on that hub. I have a 1 mm non-indexed spacer that I had bought in anticipation…
Michael
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Cassette compatibility question

I am planning to replace the cassette on my bike. Currently it has a Sunrace CSMS1-TAV 10 speed 11-34T. Unfortunately, this exact model seems that is not available anymore but very similar ones are available, such as CSMX0 or CSMS1-TAW. I wanted to…
jagjordi
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replacing lower jockey wheel

my lower jockey wheel is a plastic affair 12tooth that has no bearings just a bushing. It gives a lot of friction and a lot of side to side movement. I wish to replace it with perhaps a metal one with sealed bearings but I can only find 11tooth and…
elpocketo
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Has anyone had success mixing and matching cassette sprockets for custom ratios?

I have a 9 speed rear cassette that I am looking to replace some or all of. I would love to have a 9 speed cassette with a 10 tooth or even 9 tooth top gear, but the combination doesn't seem to be available with existing cassettes, so I am…
J Collins
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Please help me identify this cassette

I recently found this cassette that appears to have only 5 speeds. No locking or anything. Is it incomplete? Can it still be used with a normal freehub (with spacers of course)? Thank you!
Sergio Romero
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How much range can I get with two separate cassettes without changing chain length?

Just bought a new bike and got another wheelset in the deal. One is 700c and one is 650b. Right now they both have 11-34 cassettes. The rear derailleur is Shimano Claris long cage. I found an 11-23 cassette online. I'm curious as to whether or not…
TrentVB
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Pie plate replacement

The pie plate / dork disk between the cassette and spokes on my bike cracked from age and I had to remove it. I'd like to get a replacement but I can't seem to find any online. Also, do I just need to get one based on the largest cog or is there…
kabZX
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