6 and 7 speed have different spacing, 8 is slightly different to 7 as well. If the bike is from post 1989 or so it will have a block not a cassette, and a cassette won't go on the hub. If it's a 6 speed cassette it may have a threaded top cog meaning a modern 7 speed cassette won't fit either.
Can you put a 7 speed cassette on a 10 speed hub?
Registered. Provided it's not a Dura Ace 7800/7801 freehub pattern it will work fine.12 jun 2010
Can I put a 7 speed cassette on a 9 speed hub?
Premium Member. It depends.... If you take off the 7 speed cassette and there is a 4mm spacer, yes it will work. If the 7 speed cassette does not have a spacer, no a 9 speed won't fit...7 oct 2010
Do the number of teeth on a cassette matter?
As most bikes come supplied with a cassette with a 25 tooth sprocket as the largest sprocket, if you switch to a cassette with a larger biggest sprocket (somewhere around 28 teeth) it will make a big difference. Bigger than you think. Three little teeth doesn't sound like much difference but it really is.21 may 2015
How many teeth does my cassette have?
Most road bike cassettes have an 11, 12, or 13-tooth smallest sprocket, then between 21 and 32 teeth on the largest sprocket. The vast majority of road bikes come with a 12-25 cassette, which is suitable for most cycling terrain when paired with a compact or standard chainset.
What is a 12/25 cassette?
A cassette is the collection of sprockets on the hub of the rear wheel. ... Most road bikes come supplied with a 12–25T cassette, where the smallest sprocket has 12 teeth and the largest sprocked has 25 teeth.21 may 2015
What is 8 speed bike?
The 8-speeds use what most folks would probably refer to as the “standard” gearing set-up on a bike – different-sized external cogs are shifted through by moving the chain with a derailleur (that thingy that hangs down with the “little pulley” on it that adjusts the chain's tension and slides it left and right to ...25 jun 2015
What is 11 speed bike?
The rear cassette is 11 speed 11-32. This means there are 11 cogs ranging from 11 teeth up to 32 teeth (the exact cogs are 11/12/13/14/16/18/20/22/25/28/32). The combination of your selected chainring and cog determine the gear ratio.2 dic 2019