SRAM or Shimano 11 speed cassette

Discuss light weight issues concerning road bikes & parts.
DeLuz
Posts: 195
Joined: Fri Dec 04, 2009 2:30 am

by DeLuz

I am ditching my Campy 12-29 cassette and can't decide between SRAM or Shimano.
I am looking at the 11-28. I like that SRAM has 16T cog.
I have a SRAM 10 speed cassette on my tandem and have been pretty happy with it.
Thanks for any input.

richscott
Posts: 24
Joined: Mon Nov 16, 2015 5:31 am

by richscott

Suggest the 12-28 Dura ace cassette. It has a 16 cog. Who really needs a 11 cog other than pro sprinters?


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Kurets
Posts: 140
Joined: Thu Feb 25, 2016 9:55 pm

by Kurets

Do you ride solo or in a group? With a 52 in front the SRAM 11-28 has a gap in gearing around 30km/h because of the steep ramp in the final four gears. So for anything other than group riding/racing where speed on the flats is typically higher than 30 and you'll only use the steep part of the cassette for climbing, I'd recommend a different cassette.
Depending on your budget a Dura Ace 12-28 might fit? Or an 11-25/12-25. I live in a very flat area, so a 12-25 is perfect with close ratios all the way through the cassette: 12-13-14-15-16-17-18-19-21-23-25

pdlpsher1
Posts: 1542
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

I have a compact crankset so I need a 11-28. I went with the Sram as the Shimano lacks the 16 tooth. I find the larger gaps on the lower gears on the Sram to be much better than not having the 16. The Sram is also lighter than the Shimano. And lastly there's no plastic spiders that can break.


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track01
Posts: 34
Joined: Tue Apr 25, 2017 5:41 pm

by track01

I just went nearly the same road with 50-36 and 11-28 Sram cassette.
50-12 on steep descents was a bit to less to have speedy fun. :D

DeLuz
Posts: 195
Joined: Fri Dec 04, 2009 2:30 am

by DeLuz

I did consider the DA 12-28 and would prefer that except for the cost and I heard they can creak, or has that been fixed?
I really don't need an 11, but other than DA can't find a 12-28.

pdlpsher1
Posts: 1542
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

A 12-28 only comes on the Dura Ace. There are no other options. The creaking has largely been fixed by using four additional rivets which added a bit of weight to the original Dura Ace cassette.

Personally I find the Sram 11-28 gear ratio to be perfect. The slightly larger gap on the higher gears is not an issue at all on the climbs. Although you don't need the 11 cog, having the 11 cog gives you a better and straighter chainline (i.e. the chain spends more time in the center of the cassette). On a 12-28 you may find your chainline to be angled more while you are on the big ring and riding on the flats.

The Ultegra has a junior gearing option of 14-28 if you can forgo the 12 and 13 :D

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ProfessorChaos
in the industry
Posts: 743
Joined: Tue Dec 20, 2011 3:10 am

by ProfessorChaos

I've seen a number of the Dura Ace spiders break as noted above. I personally have Red, Force, and Ultegra level 11-25 cassettes on various wheelsets. The Red cassette is the lightest by far, and the loudest. The Force, and Ultegra sound about the same, and the Ultegra one is a few grams lighter. I like really tight ratios so I tend to stick to the lower tooth count, and lighter side of things. If a little louder drivetran doesn't bother you too much, go with the Red cassette.

pdlpsher1
Posts: 1542
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

I don't think the OP was thinking about the Sram Red. He had said the Dura Ace is too expensive. So I think a standard Sram 11-28 is a good choice and will be 1/3 the cost of the Dura Ace.

I have the latest generation Sram Red XDome with the elastomer silencing system, and I find it to be just as quiet as my previous Dura Ace cassette.

ooo
Posts: 528
Joined: Sat May 21, 2016 12:59 pm

by ooo

SRAM 11-26 and SHIMANO 12-28 - these cassettes gives most benefits of 11sp over 10sp
you can make almost exact copy of 12-28 d-a cassette from two 105 cassettes following this:

11-28T : -11-12-13-14-15-17-19-21-23-25-28
12-25T : -12-13-14-15-16-17-18-19-21-23-25

you need 4 cogs from 12-25T to convert 11-28 to 12-28:
12-28T : -12-13-14-15-16-17-19-21-23-25-28

you need 16T to get needed combination, you need 12T to get lockring,
you need next cogs 17T and 13T to match spacing, other cog spacing is the same

-14-15- this cogs are exactly the same for 11-28T and 12-25T see here: http://si.shimano.com/pdfs/ev/EV-CS-5800-3715.pdf
-17-19- this combo is correct, because 19t from 11-28 have ramps for 17-19 jump
Attachments
convert.jpg
convert kit
19T-1225-1128.jpg
19T from 12-25T vs 11-28T
'

Kurets
Posts: 140
Joined: Thu Feb 25, 2016 9:55 pm

by Kurets

I ran that for a while 12-28 made from half of an 105 12-25 and half of an Ultegra 11-28. Worked well as long as the cables were fresh and the tension tuned accurately. Otherwise it would sometimes get finicky in the 17->19 jump because of the mismatched ramps.

sp3000
Posts: 174
Joined: Thu Aug 21, 2014 7:12 am
Location: Sydney

by sp3000

I ran DA 12-28 and 11-28 for a while and now Red 11-28, I find the Red ratios better. One thing to note is that the DA cassette can chew the hell out of lightweight freehubs. I had lots of trouble removing the DA individual cogs from a DT swiss 180 hub. The cogs had bit in so much that the movement between cogs was enough to actually effect shifting. I had to lightly file the freehub before I installed the new cassette. The Sram has a much better one-piece design, I'll never go back.

pdlpsher1
Posts: 1542
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

sp3000 wrote:I ran DA 12-28 and 11-28 for a while and now Red 11-28, I find the Red ratios better. One thing to note is that the DA cassette can chew the hell out of lightweight freehubs. I had lots of trouble removing the DA individual cogs from a DT swiss 180 hub. The cogs had bit in so much that the movement between cogs was enough to actually effect shifting. I had to lightly file the freehub before I installed the new cassette. The Sram has a much better one-piece design, I'll never go back.


+1. I also find the Sram 11-28 ratios to be much better than the Dura Ace 11-28 ratios. I'm also on aluminum freehub and absolutely no issues with the Sram Red. In fact my freehub looks brand new after 10,000 miles.

sp3000
Posts: 174
Joined: Thu Aug 21, 2014 7:12 am
Location: Sydney

by sp3000

Thanks Shimano>>>Image

track01
Posts: 34
Joined: Tue Apr 25, 2017 5:41 pm

by track01

nasty. Had similar experience with shimano cassette and tune hubs.

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