105 Cassette - identify size
The cassette I have on my bike is a 12-27 (105) and I was thinking of putting on a 28 at the bottom end. I have only been able to find a 11-28. Can you get a 12-28?
But my main question is - I have removed the cassette to clean it, and I can see the numbers on all the rings except the last three which are joined together. So there is a 12, 13, 14, 15, 16, 17, 19 and then the last three only have C1, C2 & C3 on them. Why don't the have the sizes on also? And how do I tell what size they are?
On the reverse of them I can see the numbers 12-27 on, but nothing on those rings.
But my main question is - I have removed the cassette to clean it, and I can see the numbers on all the rings except the last three which are joined together. So there is a 12, 13, 14, 15, 16, 17, 19 and then the last three only have C1, C2 & C3 on them. Why don't the have the sizes on also? And how do I tell what size they are?
On the reverse of them I can see the numbers 12-27 on, but nothing on those rings.
0
Comments
-
have you tried to count the sprockets
... 0 -
I know it is a 27 but wondered how to tell without having to count them
Anyone know if I could fit a Ultegra 12-30 cassette on? I'm off to honister, Hardknott & Wrynose soon so just thinking ahead
0 -
At a a guess, I'd have thought they'd be 21, 24, 27.
Rob0 -
TheFD wrote:I know it is a 27 but wondered how to tell without having to count them
Anyone know if I could fit a Ultegra 12-30 cassette on? I'm off to honister, Hardknott & Wrynose soon so just thinking ahead
As Ber Nard said the final 3 cogs are 21,24 and 27
see http://www.bike24.com/p215763.html - under the "Fact Sheet" tab
You can opt for a 12-30 if you want a bit more gearing for the really tough climbs. I've done this in the past using a Tiagra 12-30 (about £20) but there is also an Ultegra 12-30 on the market but it's nearer £45 if you want to spend that much.0 -
Thanks I'll have a look at the Tiagra one. May be worth it in terms of cost when it will only be put on when I'm doing a really steep climb!arlowood wrote:TheFD wrote:I know it is a 27 but wondered how to tell without having to count them
Anyone know if I could fit a Ultegra 12-30 cassette on? I'm off to honister, Hardknott & Wrynose soon so just thinking ahead
As Ber Nard said the final 3 cogs are 21,24 and 27
see http://www.bike24.com/p215763.html - under the "Fact Sheet" tab
You can opt for a 12-30 if you want a bit more gearing for the really tough climbs. I've done this in the past using a Tiagra 12-30 (about £20) but there is also an Ultegra 12-30 on the market but it's nearer £45 if you want to spend that much.0
