Shimano 11-27?

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2009-01-28 12:02 AM

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Subject: Shimano 11-27?
Anybody got that new cassette? Is it compatible with the old Shimano Dura Ace? because I don't see a cassette 11-27 on the old Shimano groupset...why they don't add it and sell it only in the new flavour? just for cost reason?

2009-01-28 5:03 AM
in reply to: #1932972

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Subject: RE: Shimano 11-27?

Plissken74 - 2009-01-28 1:02 AM Anybody got that new cassette? Is it compatible with the old Shimano Dura Ace? because I don't see a cassette 11-27 on the old Shimano groupset...why they don't add it and sell it only in the new flavour? just for cost reason?

I think you might mean the new 11-28 only in dura ace. 28 was outside the specs of all the Shimano road derailuers until the new Dura Ace group came out this year. I bought a Sram 11-28 last year and used it on my bike with Ultegra group. It was a bit finicky to get it to shift right to both ends of the rear derailuer.

My guess is they are trying to catch up with Sram on the 11-28 and as always improvements go to their top of the line group first and then roll down.

 

2009-01-28 6:20 AM
in reply to: #1933032

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Subject: RE: Shimano 11-27?
KathyG - 2009-01-27 12:03 PM

Plissken74 - 2009-01-28 1:02 AM Anybody got that new cassette? Is it compatible with the old Shimano Dura Ace? because I don't see a cassette 11-27 on the old Shimano groupset...why they don't add it and sell it only in the new flavour? just for cost reason?

I think you might mean the new 11-28 only in dura ace. 28 was outside the specs of all the Shimano road derailuers until the new Dura Ace group came out this year. I bought a Sram 11-28 last year and used it on my bike with Ultegra group. It was a bit finicky to get it to shift right to both ends of the rear derailuer.

My guess is they are trying to catch up with Sram on the 11-28 and as always improvements go to their top of the line group first and then roll down.

 

11-28??? never seen that in Shimano. I am referring to 11-27 because 27 came before always with 12 so 12-27.

Can you point me a link reporting the 11-28? I guess with 11-28 I would save some money for switching to compact...

2009-01-28 6:40 AM
in reply to: #1932972

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Subject: RE: Shimano 11-27?
11-28 comes as size 4 on the Shimano DA CS-7900 10-speed.

Size 4: 11-28: 11,12,13,14,15,17,19,21,24,28
163g

SRAM Red has an 11-26

I have not seen a DA 11-27
2009-01-28 10:15 AM
in reply to: #1933057

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Subject: RE: Shimano 11-27?
Plissken74 - 2009-01-28 7:20 AM

KathyG - 2009-01-27 12:03 PM

Plissken74 - 2009-01-28 1:02 AM Anybody got that new cassette? Is it compatible with the old Shimano Dura Ace? because I don't see a cassette 11-27 on the old Shimano groupset...why they don't add it and sell it only in the new flavour? just for cost reason?

I think you might mean the new 11-28 only in dura ace. 28 was outside the specs of all the Shimano road derailuers until the new Dura Ace group came out this year. I bought a Sram 11-28 last year and used it on my bike with Ultegra group. It was a bit finicky to get it to shift right to both ends of the rear derailuer.

My guess is they are trying to catch up with Sram on the 11-28 and as always improvements go to their top of the line group first and then roll down.

 

11-28??? never seen that in Shimano. I am referring to 11-27 because 27 came before always with 12 so 12-27.

Can you point me a link reporting the 11-28? I guess with 11-28 I would save some money for switching to compact...




http://www.trisports.com/shimano-dura-ace-7900-cassette.html

# Available Gearing:

# 11-21 : 11, 12, 13, 14, 15, 16, 17, 18, 19, 21
# 11-23 : 11, 12, 13, 14, 15, 16, 17, 19, 21, 23
# 11-25 : 11, 12, 13, 14, 15, 17, 19, 21, 23, 25
# 11-27 : 11, 12, 13, 14, 15, 17, 19, 21, 24, 27
# 11-28 : 11, 12, 13, 14, 15, 17, 19, 21, 24, 28

# 12-23 : 12, 13, 14, 15, 16, 17, 18, 19, 21, 23
# 12-25 : 12, 13, 14, 15, 16, 17, 19, 21, 23, 25
# 12-27 : 12, 13, 14, 15, 16, 17, 19, 21, 24, 27
2009-08-17 10:33 AM
in reply to: #1932972

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Subject: RE: Shimano 11-27?
I live in an area with lots of hills.  have a standard crank (53/39) with an 11-25 cassette.  will an 11-27 keep me in the saddle a little more on those 15-20%ers?

2009-08-17 11:56 AM
in reply to: #2353030

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Subject: RE: Shimano 11-27?
URGuilty - 2009-08-17 10:33 AM I live in an area with lots of hills.  have a standard crank (53/39) with an 11-25 cassette.  will an 11-27 keep me in the saddle a little more on those 15-20%ers?


Tough question.  I have a 27 on my tri bike and have only found one hill that it doesn't get me up...or only got me up 50% of the time...and that sucker was brutal...18% for 0.8 miles.  Stupid steep and no way to stay in your saddle.  But I've never ridden a 25...so I can't predict how much more benefit you would get.  Off the top of my head I would say "not much".  Maybe if you currently had a 23 and were movig up to the 27...but if you already have a 25?  Don't think it will help that much...
2009-08-19 1:46 PM
in reply to: #1932972

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Subject: RE: Shimano 11-27?
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